#14704 closed defect (can't reproduce)

Picking code: Singular matrix

Reported by: chimerax-bug-report@… Owned by: Tom Goddard
Priority: normal Milestone:
Component: Graphics Version:
Keywords: Cc:
Blocked By: Blocking:
Notify when closed: Platform: all
Project: ChimeraX

Description (last modified by pett)

The following bug report has been submitted:
Platform:        macOS-14.3.1-arm64-arm-64bit
ChimeraX Version: 1.7.1 (2024-01-23 01:58:08 UTC)
Description
(Describe the actions that caused this problem to occur here)

Log:
UCSF ChimeraX version: 1.7.1 (2024-01-23)  
© 2016-2023 Regents of the University of California. All rights reserved.  

> open /Users/antoninnourisson/Library/CloudStorage/OneDrive-
> InstitutPasteurParis/Thèse/Rédaction/Article/Figures/papierpolx.cxs format
> session

Log from Tue Feb 13 19:35:04 2024 Startup Messages  
---  
warning | Replacing fetcher for 'pdb_nmr' and format NMRSTAR from NMRSTAR
bundle with that from NMRSTAR bundle  
  
UCSF ChimeraX version: 1.7 (2023-12-19)  
© 2016-2023 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  

> open /Users/antoninnourisson/Library/CloudStorage/OneDrive-
> InstitutPasteurParis/Thèse/Manips/Structures/Polbetalike/refine.pdb

Summary of feedback from opening
/Users/antoninnourisson/Library/CloudStorage/OneDrive-
InstitutPasteurParis/Thèse/Manips/Structures/Polbetalike/refine.pdb  
---  
warnings | Ignored bad PDB record found on line 1  
REMARK --------------------- added by autoBUSTER
---------------------------------START  
  
Ignored bad PDB record found on line 2  
REMARK run at = Mon Jan 8 14:08:44 CET 2024  
  
Ignored bad PDB record found on line 13  
REMARK Files used:  
  
Ignored bad PDB record found on line 14  
REMARK PDB = refine_6-4-notlsnoprunencs/pdbchk.pdb  
  
Ignored bad PDB record found on line 15  
REMARK MTZ =
/home/anouriss/Desktop/polbetalike/+nt/Antonin_20/Antonin_X2_1_staraniso.mtz  
  
72 messages similar to the above omitted  
  
Chain information for refine.pdb #1  
---  
Chain | Description  
A C | No description available  
E F | No description available  
G I | No description available  
H J | No description available  
  

> open "/Users/antoninnourisson/Library/CloudStorage/OneDrive-
> InstitutPasteurParis/Thèse/Manips/Structures/mut K/refinemutk2.pdb"

Summary of feedback from opening
/Users/antoninnourisson/Library/CloudStorage/OneDrive-
InstitutPasteurParis/Thèse/Manips/Structures/mut K/refinemutk2.pdb  
---  
warnings | Ignored bad PDB record found on line 1  
REMARK --------------------- added by autoBUSTER
---------------------------------START  
  
Ignored bad PDB record found on line 2  
REMARK run at = Thu Nov 16 16:26:10 CET 2023  
  
Ignored bad PDB record found on line 9  
REMARK Files used:  
  
Ignored bad PDB record found on line 10  
REMARK PDB = refine_X/pdbchk.pdb  
  
Ignored bad PDB record found on line 11  
REMARK MTZ = /home/anouriss/Desktop/mutK/6/PF6_007_Antonin_11_1.mtz  
  
162 messages similar to the above omitted  
  
Chain information for refinemutk2.pdb #2  
---  
Chain | Description  
A | No description available  
D | No description available  
P | No description available  
T | No description available  
  

> open /Users/antoninnourisson/Library/CloudStorage/OneDrive-
> InstitutPasteurParis/Thèse/Manips/Structures/mutR/refinemutR.pdb

Summary of feedback from opening
/Users/antoninnourisson/Library/CloudStorage/OneDrive-
InstitutPasteurParis/Thèse/Manips/Structures/mutR/refinemutR.pdb  
---  
warnings | Ignored bad PDB record found on line 5  
REMARK --------------------- added by autoBUSTER
-------------------------------  
  
Ignored bad PDB record found on line 6  
REMARK run at = Fri Jun 2 14:03:41 CEST 2023  
  
Ignored bad PDB record found on line 13  
REMARK Files used:  
  
Ignored bad PDB record found on line 14  
REMARK PDB = ./Buster/refine9.dir/pdbchk.pdb  
  
Ignored bad PDB record found on line 15  
REMARK MTZ = /data/Xtalo/COLLECT/2023/2023-05-27_SOLEIL_PX2A/Anto  
  
76 messages similar to the above omitted  
  
refinemutR.pdb title:  
\--- [more info...]  
  
Chain information for refinemutR.pdb #3  
---  
Chain | Description  
A | No description available  
F | No description available  
G | No description available  
H | No description available  
  
Non-standard residues in refinemutR.pdb #3  
---  
CA — (CA)  
EDO — (EDO)  
TTP — (TTP)  
  

> open "/Users/antoninnourisson/Library/CloudStorage/OneDrive-
> InstitutPasteurParis/Thèse/Manips/Structures/Ptet like/nt
> correct/refineptet.pdb"

Summary of feedback from opening
/Users/antoninnourisson/Library/CloudStorage/OneDrive-
InstitutPasteurParis/Thèse/Manips/Structures/Ptet like/nt
correct/refineptet.pdb  
---  
warnings | Ignored bad PDB record found on line 1  
REMARK --------------------- added by autoBUSTER
---------------------------------START  
  
Ignored bad PDB record found on line 2  
REMARK run at = Fri Sep 15 12:00:22 CEST 2023  
  
Ignored bad PDB record found on line 10  
REMARK Files used:  
  
Ignored bad PDB record found on line 11  
REMARK PDB = refine_016/pdbchk.pdb  
  
Ignored bad PDB record found on line 12  
REMARK MTZ =
/home/anouriss/Desktop/Ptetlike/dataset-8/Antonin_PolD_PEG_220823_D6_EG_X16_1.mtz  
  
123 messages similar to the above omitted  
  
Chain information for refineptet.pdb #4  
---  
Chain | Description  
A | No description available  
D | No description available  
P | No description available  
T | No description available  
  

> open "/Users/antoninnourisson/Library/CloudStorage/OneDrive-
> InstitutPasteurParis/Thèse/Manips/Structures/Ptet like/nt
> incorrect/refine.pdb"

Summary of feedback from opening
/Users/antoninnourisson/Library/CloudStorage/OneDrive-
InstitutPasteurParis/Thèse/Manips/Structures/Ptet like/nt incorrect/refine.pdb  
---  
warnings | Ignored bad PDB record found on line 1  
REMARK --------------------- added by autoBUSTER
---------------------------------START  
  
Ignored bad PDB record found on line 2  
REMARK run at = Thu Dec 21 10:10:37 CET 2023  
  
Ignored bad PDB record found on line 16  
REMARK Files used:  
  
Ignored bad PDB record found on line 17  
REMARK PDB = refine_11/pdbchk.pdb  
  
Ignored bad PDB record found on line 18  
REMARK MTZ = /home/anouriss/Desktop/Ptetlike/nt-
incorrect/Antonin_21/ccp4if/Antonin_X6_1.mtz  
  
82 messages similar to the above omitted  
  
Chain information for refine.pdb #5  
---  
Chain | Description  
A | No description available  
D | No description available  
P | No description available  
T | No description available  
  

> set bgColor white

> lighting soft

> graphics silhouettes true

> hide atoms

> show cartoons

> select add #1/C:277

8 atoms, 7 bonds, 1 residue, 1 model selected  

> select up

126 atoms, 128 bonds, 16 residues, 1 model selected  

> select up

2530 atoms, 2583 bonds, 321 residues, 1 model selected  

> select clear

> select add #1/C:459

8 atoms, 7 bonds, 1 residue, 1 model selected  

> select clear

> select add #1/A:361

9 atoms, 8 bonds, 1 residue, 1 model selected  

> select clear

> select add #1/C:460

8 atoms, 7 bonds, 1 residue, 1 model selected  

> select up

31 atoms, 30 bonds, 4 residues, 1 model selected  

> select up

2530 atoms, 2583 bonds, 321 residues, 1 model selected  

> delete atoms sel

> delete bonds sel

> select add #1/E:9

19 atoms, 20 bonds, 1 residue, 1 model selected  

> select up

224 atoms, 251 bonds, 11 residues, 1 model selected  

> delete atoms sel

> delete bonds sel

Drag select of 10 residues  

> delete atoms sel

> delete bonds sel

> open /Users/antoninnourisson/Library/CloudStorage/OneDrive-
> InstitutPasteurParis/Thèse/Manips/Structures/Polbetalike/refine.pdb

Summary of feedback from opening
/Users/antoninnourisson/Library/CloudStorage/OneDrive-
InstitutPasteurParis/Thèse/Manips/Structures/Polbetalike/refine.pdb  
---  
warnings | Ignored bad PDB record found on line 1  
REMARK --------------------- added by autoBUSTER
---------------------------------START  
  
Ignored bad PDB record found on line 2  
REMARK run at = Mon Jan 8 14:08:44 CET 2024  
  
Ignored bad PDB record found on line 13  
REMARK Files used:  
  
Ignored bad PDB record found on line 14  
REMARK PDB = refine_6-4-notlsnoprunencs/pdbchk.pdb  
  
Ignored bad PDB record found on line 15  
REMARK MTZ =
/home/anouriss/Desktop/polbetalike/+nt/Antonin_20/Antonin_X2_1_staraniso.mtz  
  
72 messages similar to the above omitted  
  
Chain information for refine.pdb #6  
---  
Chain | Description  
A C | No description available  
E F | No description available  
G I | No description available  
H J | No description available  
  

> hide #5 models

> hide #4 models

> hide #3 models

> hide #2 models

> hide #1 models

> hide #6 atoms

> show #6 cartoons

> select add #6/A:268

6 atoms, 5 bonds, 1 residue, 1 model selected  

> select up

127 atoms, 128 bonds, 16 residues, 1 model selected  

> select up

2530 atoms, 2583 bonds, 321 residues, 1 model selected  

> delete atoms sel

> delete bonds sel

> select add #6/F:4

19 atoms, 20 bonds, 1 residue, 1 model selected  

> select up

224 atoms, 251 bonds, 11 residues, 1 model selected  

> select clear

Drag select of 21 residues  

> delete atoms sel

> delete bonds sel

> show #5 models

> show #4 models

> show #3 models

> show #2 models

> show #1 models

> open /Users/antoninnourisson/Library/CloudStorage/OneDrive-
> InstitutPasteurParis/Thèse/Manips/Structures/7m43.pdb

7m43.pdb title:  
Dna polymerase λ, TTP:At CA2+ ground state ternary complex [more info...]  
  
Chain information for 7m43.pdb #7  
---  
Chain | Description | UniProt  
A | DNA polymerase λ | DPOLL_HUMAN 242-575  
D | DNA (5'-D(P*GP*CP*CP*G)-3') |  
P | DNA (5'-D(*CP*ap*GP*TP*ap*C)-3') |  
T | DNA (5'-D(*CP*GP*GP*CP*ap*GP*TP*ap*CP*TP*G)-3') |  
  
Non-standard residues in 7m43.pdb #7  
---  
CA — calcium ion  
EDO — 1,2-ethanediol (ethylene glycol)  
GOL — glycerol (glycerin; propane-1,2,3-triol)  
NA — sodium ion  
TTP — thymidine-5'-triphosphate  
  

> show atoms

> hide atoms

> style stick

Changed 21980 atom styles  

> lighting soft

> graphics silhouettes false

> graphics silhouettes true

> ui tool show Matchmaker

> matchmaker #1-6 to #7

Parameters  
---  
Chain pairing | bb  
Alignment algorithm | Needleman-Wunsch  
Similarity matrix | BLOSUM-62  
SS fraction | 0.3  
Gap open (HH/SS/other) | 18/18/6  
Gap extend | 1  
SS matrix |  |  | H | S | O  
---|---|---|---  
H | 6 | -9 | -6  
S |  | 6 | -6  
O |  |  | 4  
Iteration cutoff | 2  
  
Matchmaker 7m43.pdb, chain A (#7) with refine.pdb, chain A (#1), sequence
alignment score = 1622.8  
RMSD between 308 pruned atom pairs is 0.562 angstroms; (across all 320 pairs:
1.499)  
  
Matchmaker 7m43.pdb, chain A (#7) with refinemutk2.pdb, chain A (#2), sequence
alignment score = 1587.5  
RMSD between 320 pruned atom pairs is 0.389 angstroms; (across all 320 pairs:
0.389)  
  
Matchmaker 7m43.pdb, chain A (#7) with refinemutR.pdb, chain A (#3), sequence
alignment score = 1576.3  
RMSD between 320 pruned atom pairs is 0.380 angstroms; (across all 320 pairs:
0.380)  
  
Matchmaker 7m43.pdb, chain A (#7) with refineptet.pdb, chain A (#4), sequence
alignment score = 1586  
RMSD between 320 pruned atom pairs is 0.499 angstroms; (across all 320 pairs:
0.499)  
  
Matchmaker 7m43.pdb, chain A (#7) with refine.pdb, chain A (#5), sequence
alignment score = 1580  
RMSD between 320 pruned atom pairs is 0.422 angstroms; (across all 320 pairs:
0.422)  
  
Matchmaker 7m43.pdb, chain A (#7) with refine.pdb, chain C (#6), sequence
alignment score = 1612.6  
RMSD between 311 pruned atom pairs is 0.576 angstroms; (across all 320 pairs:
1.058)  
  

> color #4 #90dcfdff

> color #7 #cdbea9ff

> color #2 #d195edff

> select add #1

3008 atoms, 3068 bonds, 385 residues, 1 model selected  

> color #1 #ffd479ff

> select subtract #1

Nothing selected  

> select add #6

3008 atoms, 3068 bonds, 385 residues, 1 model selected  

> color #6 #a1e6caff

> color #3 #f4bff7ff

> color #6 #a2e8cbff

> color #6 #66d36aff

> select add #5

6075 atoms, 6154 bonds, 812 residues, 2 models selected  

> select subtract #5

3008 atoms, 3068 bonds, 385 residues, 1 model selected  

> select subtract #6

Nothing selected  

> color #5 #73fa79ff

> select add #6

3008 atoms, 3068 bonds, 385 residues, 1 model selected  

> select subtract #6

Nothing selected  

> select add #6

3008 atoms, 3068 bonds, 385 residues, 1 model selected  

> select subtract #6

Nothing selected  

> select add #5

3067 atoms, 3086 bonds, 427 residues, 1 model selected  

> select subtract #5

Nothing selected  

> color #5 #e97668ff

> select add #6

3008 atoms, 3068 bonds, 385 residues, 1 model selected  

> select subtract #6

Nothing selected  

> color #4 #9afe9aff

> color #6 #008f00ff

> color #5 #76d6ffff

> color #7 #c3b7a7ff

> color #7 #c39f81ff

> color #7 #c39a6eff

Alignment identifier is 1  
Alignment identifier is 2  
Alignment identifier is 3  
Alignment identifier is 4  
Alignment identifier is 2/A  
Alignment identifier is 3/A  
Alignment identifier is 5  
Alignment identifier is 7/A  

> select #1/F:1-2 #2/T:1-2 #3/F:1-2 #4/T:1-2 #5/T:1-2 #6/E:1-2 #7/T:1-2

266 atoms, 294 bonds, 14 residues, 7 models selected  

> select #1/F #2/T #3/F:1-11 #4/T #5/T #6/E #7/T:1-11

1568 atoms, 1757 bonds, 77 residues, 7 models selected  
2 [ID: 2] region 7 chains [1-11] RMSD: 1.433  
  

> select #2/T:5

21 atoms, 23 bonds, 1 residue, 1 model selected  

> select #1/F:1 #2/T:1 #3/F:1 #4/T:1 #5/T:1 #6/E:1 #7/T:1

112 atoms, 119 bonds, 7 residues, 7 models selected  

> select #1/F:1-6 #2/T:1-6 #3/F:1-6 #4/T:1-6 #5/T:1-6 #6/E:1-6 #7/T:1-6

854 atoms, 959 bonds, 42 residues, 7 models selected  
2 [ID: 2] region 7 chains [1-6] RMSD: 1.511  
  

> select #1/F:5 #2/T:5 #3/F:5 #4/T:5 #5/T:5 #6/E:5 #7/T:5

147 atoms, 161 bonds, 7 residues, 7 models selected  

> select #1/F:5 #2/T:5 #3/F:5 #4/T:5 #5/T:5 #6/E:5 #7/T:5

147 atoms, 161 bonds, 7 residues, 7 models selected  
2 [ID: 2] region 7 chains [5] RMSD: 2.123  
  

> show sel atoms

> nucleotides sel atoms

> style nucleic & sel stick

Changed 147 atom styles  

> select clear

> color byhetero

Alignment identifier is 2  
Alignment identifier is 6  
Alignment identifier is 7  
Alignment identifier is 8  
Destroying pre-existing alignment with identifier 2/A  
Alignment identifier is 2/A  
Destroying pre-existing alignment with identifier 3/A  
Alignment identifier is 3/A  
Alignment identifier is 9  
Destroying pre-existing alignment with identifier 7/A  
Alignment identifier is 7/A  

> select #1/G:6 #2/P:6 #3/G:6 #4/P:6 #5/P:6 #6/I:6 #7/P:6

133 atoms, 140 bonds, 7 residues, 7 models selected  

> select #1/G:6 #2/P:6 #3/G:6 #4/P:6 #5/P:6 #6/I:6 #7/P:6

133 atoms, 140 bonds, 7 residues, 7 models selected  
7 [ID: 7] region 7 chains [6] RMSD: 0.711  
  

> show sel atoms

> nucleotides sel atoms

> style nucleic & sel stick

Changed 133 atom styles  

> nucleotides sel atoms

> style nucleic & sel stick

Changed 133 atom styles  

> nucleotides sel atoms

> style nucleic & sel stick

Changed 133 atom styles  

> nucleotides sel fill

> style nucleic & sel stick

Changed 133 atom styles  

> select clear

> select #1/G:6 #2/P:6 #3/G:6 #4/P:6 #5/P:6 #6/I:6 #7/P:6

133 atoms, 140 bonds, 7 residues, 7 models selected  

> select #1/G:6 #2/P:6 #3/G:6 #4/P:6 #5/P:6 #6/I:6 #7/P:6

133 atoms, 140 bonds, 7 residues, 7 models selected  
7 [ID: 7] region 7 chains [6] RMSD: 0.711  
  

> nucleotides sel fill

> style nucleic & sel stick

Changed 133 atom styles  

> nucleotides sel fill

> style nucleic & sel stick

Changed 133 atom styles  

> nucleotides sel atoms

> style nucleic & sel stick

Changed 133 atom styles  

> select clear

> select ::name="TTP"

116 atoms, 120 bonds, 4 residues, 4 models selected  

> show sel atoms

> select clear

> select ::name="DCP"

40 atoms, 41 bonds, 1 residue, 1 model selected  

> show sel atoms

> select clear

> select ::name="CA"

7 atoms, 7 residues, 5 models selected  

> show sel atoms

> select clear

> select ::name="TTP"

116 atoms, 120 bonds, 4 residues, 4 models selected  

> show sel atoms

> select clear

> select #1/A:528 #6/C:528

16 atoms, 14 bonds, 2 residues, 2 models selected  

> select #1/A:528-530 #6/C:528-530

58 atoms, 58 bonds, 6 residues, 2 models selected  
1 [ID: 1] region chains A,C [274-276] RMSD: 0.114  
  

> show sel atoms

> select #1/A:505 #6/C:505

24 atoms, 24 bonds, 2 residues, 2 models selected  

> select #1/A:505 #6/C:505

24 atoms, 24 bonds, 2 residues, 2 models selected  
1 [ID: 1] region chains A,C [251] RMSD: 0.081  
  

> select #1/A:505 #6/C:505

24 atoms, 24 bonds, 2 residues, 2 models selected  

> select #1/A:505-506 #6/C:505-506

46 atoms, 48 bonds, 4 residues, 2 models selected  
1 [ID: 1] region chains A,C [251-252] RMSD: 0.076  
  

> show sel atoms

> select #1/A:492 #6/C:492

22 atoms, 20 bonds, 2 residues, 2 models selected  

> select #1/A:492 #6/C:492

22 atoms, 20 bonds, 2 residues, 2 models selected  
1 [ID: 1] region chains A,C [238] RMSD: 0.049  
  

> show sel atoms

> select #1/A:489-490 #6/C:489-490

32 atoms, 30 bonds, 4 residues, 2 models selected  

> select #1/A:489-490 #6/C:489-490

32 atoms, 30 bonds, 4 residues, 2 models selected  
1 [ID: 1] region chains A,C [235-236] RMSD: 0.062  
  

> select #1/A:490 #6/C:490

16 atoms, 14 bonds, 2 residues, 2 models selected  

> select #1/A:490 #6/C:490

16 atoms, 14 bonds, 2 residues, 2 models selected  
1 [ID: 1] region chains A,C [236] RMSD: 0.038  
  

> show sel atoms

> select #1/A:427 #6/C:427

16 atoms, 14 bonds, 2 residues, 2 models selected  

> select #1/A:427 #6/C:427

16 atoms, 14 bonds, 2 residues, 2 models selected  
1 [ID: 1] region chains A,C [178] RMSD: 0.094  
  

> show sel atoms

> select #1/A:429 #6/C:429

16 atoms, 14 bonds, 2 residues, 2 models selected  

> select #1/A:429 #6/C:429

16 atoms, 14 bonds, 2 residues, 2 models selected  
1 [ID: 1] region chains A,C [180] RMSD: 0.030  
  

> show sel atoms

> select #4/A:528 #5/A:528

12 atoms, 10 bonds, 2 residues, 2 models selected  

> select #4/A:528-530 #5/A:528-530

48 atoms, 48 bonds, 6 residues, 2 models selected  
5 [ID: 5] region 2 chains [273-275] RMSD: 0.147  
  

> show sel atoms

> select #4/A:505 #5/A:505

24 atoms, 24 bonds, 2 residues, 2 models selected  

> select #4/A:505-506 #5/A:505-506

46 atoms, 48 bonds, 4 residues, 2 models selected  
5 [ID: 5] region 2 chains [250-251] RMSD: 0.287  
  

> show sel atoms

> select #4/A:492 #5/A:492

18 atoms, 16 bonds, 2 residues, 2 models selected  

> select #4/A:492 #5/A:492

18 atoms, 16 bonds, 2 residues, 2 models selected  
5 [ID: 5] region 2 chains [237] RMSD: 0.172  
  

> show sel atoms

> select #4/A:490 #5/A:490

16 atoms, 14 bonds, 2 residues, 2 models selected  

> select #4/A:490 #5/A:490

16 atoms, 14 bonds, 2 residues, 2 models selected  
5 [ID: 5] region 2 chains [235] RMSD: 0.234  
  

> show sel atoms

> select #4/A:427 #5/A:427

16 atoms, 14 bonds, 2 residues, 2 models selected  

> select #4/A:427 #5/A:427

16 atoms, 14 bonds, 2 residues, 2 models selected  
5 [ID: 5] region 2 chains [177] RMSD: 0.299  
  

> show sel atoms

> select #4/A:429 #5/A:429

16 atoms, 14 bonds, 2 residues, 2 models selected  

> select #4/A:429-430 #5/A:429-430

30 atoms, 28 bonds, 4 residues, 2 models selected  
5 [ID: 5] region 2 chains [179-180] RMSD: 0.187  
  

> select #4/A:429 #5/A:429

16 atoms, 14 bonds, 2 residues, 2 models selected  

> select #4/A:429 #5/A:429

16 atoms, 14 bonds, 2 residues, 2 models selected  
5 [ID: 5] region 2 chains [179] RMSD: 0.253  
  

> show sel atoms

> select #1/A:528 #6/C:528

16 atoms, 14 bonds, 2 residues, 2 models selected  

> select #1/A:528-530 #6/C:528-530

58 atoms, 58 bonds, 6 residues, 2 models selected  
2 [ID: 2] region chains A,C [274-276] RMSD: 0.114  
  

> show sel atoms

> select #1/A:427 #6/C:427

16 atoms, 14 bonds, 2 residues, 2 models selected  

> select #1/A:427-429 #6/C:427-429

46 atoms, 44 bonds, 6 residues, 2 models selected  
2 [ID: 2] region chains A,C [178-180] RMSD: 0.074  
  

> select #2/A:505

12 atoms, 12 bonds, 1 residue, 1 model selected  

> select #2/A:505-506

23 atoms, 24 bonds, 2 residues, 1 model selected  

> show sel atoms

> select #2/A:492

9 atoms, 8 bonds, 1 residue, 1 model selected  

> select #2/A:492

9 atoms, 8 bonds, 1 residue, 1 model selected  

> show sel atoms

> select #2/A:490

8 atoms, 7 bonds, 1 residue, 1 model selected  

> select #2/A:490

8 atoms, 7 bonds, 1 residue, 1 model selected  

> show sel atoms

> select #2/A:427

8 atoms, 7 bonds, 1 residue, 1 model selected  

> select #2/A:427

8 atoms, 7 bonds, 1 residue, 1 model selected  

> show sel atoms

> select #2/A:379

10 atoms, 10 bonds, 1 residue, 1 model selected  

> select #2/A:379-429

392 atoms, 397 bonds, 51 residues, 1 model selected  

> select #2/A:429

8 atoms, 7 bonds, 1 residue, 1 model selected  

> select #2/A:429

8 atoms, 7 bonds, 1 residue, 1 model selected  

> show sel atoms

> select #2/A:528

6 atoms, 5 bonds, 1 residue, 1 model selected  

> select #2/A:528-530

25 atoms, 25 bonds, 3 residues, 1 model selected  

> show sel atoms

> select #3/A:505

12 atoms, 12 bonds, 1 residue, 1 model selected  

> select #3/A:505-506

23 atoms, 24 bonds, 2 residues, 1 model selected  

> show sel atoms

> select #3/A:528

6 atoms, 5 bonds, 1 residue, 1 model selected  

> select #3/A:528-530

25 atoms, 25 bonds, 3 residues, 1 model selected  

> show sel atoms

> select #3/A:492

11 atoms, 10 bonds, 1 residue, 1 model selected  

> select #3/A:492

11 atoms, 10 bonds, 1 residue, 1 model selected  

> show sel atoms

> select #3/A:490

8 atoms, 7 bonds, 1 residue, 1 model selected  

> select #3/A:490

8 atoms, 7 bonds, 1 residue, 1 model selected  

> show sel atoms

> select #3/A:427

8 atoms, 7 bonds, 1 residue, 1 model selected  

> select #3/A:427

8 atoms, 7 bonds, 1 residue, 1 model selected  

> show sel atoms

> select #3/A:429

8 atoms, 7 bonds, 1 residue, 1 model selected  

> select #3/A:429

8 atoms, 7 bonds, 1 residue, 1 model selected  

> show sel atoms

> select #4/A:528 #5/A:528

12 atoms, 10 bonds, 2 residues, 2 models selected  

> select #4/A:528-530 #5/A:528-530

48 atoms, 48 bonds, 6 residues, 2 models selected  
9 [ID: 9] region 2 chains [273-275] RMSD: 0.147  
  

> show sel atoms

> select #4/A:505 #5/A:505

24 atoms, 24 bonds, 2 residues, 2 models selected  

> select #4/A:505-506 #5/A:505-506

46 atoms, 48 bonds, 4 residues, 2 models selected  
9 [ID: 9] region 2 chains [250-251] RMSD: 0.287  
  

> show sel atoms

> select #4/A:427 #5/A:427

16 atoms, 14 bonds, 2 residues, 2 models selected  

> select #4/A:427-429 #5/A:427-429

46 atoms, 44 bonds, 6 residues, 2 models selected  
9 [ID: 9] region 2 chains [177-179] RMSD: 0.273  
  

> select #7/A:528

6 atoms, 5 bonds, 1 residue, 1 model selected  

> select #7/A:528-530

25 atoms, 25 bonds, 3 residues, 1 model selected  

> show sel atoms

> select #7/A:505

12 atoms, 12 bonds, 1 residue, 1 model selected  

> select #7/A:505-506

23 atoms, 24 bonds, 2 residues, 1 model selected  

> show sel atoms

> select #7/A:490

8 atoms, 7 bonds, 1 residue, 1 model selected  

> select #7/A:490

8 atoms, 7 bonds, 1 residue, 1 model selected  

> show sel atoms

> select #7/A:492

8 atoms, 7 bonds, 1 residue, 1 model selected  

> select #7/A:492

8 atoms, 7 bonds, 1 residue, 1 model selected  

> show sel atoms

> select #7/A:427

8 atoms, 7 bonds, 1 residue, 1 model selected  

> select #7/A:427

8 atoms, 7 bonds, 1 residue, 1 model selected  

> show sel atoms

> select #7/A:429

8 atoms, 7 bonds, 1 residue, 1 model selected  

> select #7/A:429-430

15 atoms, 14 bonds, 2 residues, 1 model selected  

> select #7/A:429

8 atoms, 7 bonds, 1 residue, 1 model selected  

> select #7/A:429

8 atoms, 7 bonds, 1 residue, 1 model selected  

> show sel atoms

> select clear

> transparency #1/P 50 cartoons

> transparency #1/F 50 cartoons

> transparency #4/T 50 cartoons

> transparency #2/T 50 cartoons

> transparency #6/E 50 cartoons

> transparency #7/T 50 cartoons

> transparency #5/T 50 cartoons

> hide #1 models

> hide #2 models

> hide #!7 models

> hide #6 models

> hide #5 models

> hide #4 models

> hide #3 models

> show #1 models

> hide #1 models

> show #2 models

> hide #2 models

> show #3 models

> transparency #3/F 50 cartoons

> hide #3 models

> show #4 models

> hide #4 models

> show #5 models

> hide #5 models

> show #6 models

> hide #6 models

> show #!7 models

> hide #!7 models

> show #5 models

> show #6 models

> show #!7 models

> show #4 models

> show #1 models

> show #2 models

> show #3 models

> select clear

> hide #6 models

> hide #5 models

> hide #3 models

> hide #2 models

> hide #1 models

> hide #4 models

> show #3 models

> show #2 models

> hide #3 models

> show #3 models

> hide #2 models

> hide #3 models

> show #1 models

> hide #1 models

> color #1 #fff76bff

> color #1 #fff463ff

> show #1 models

> select clear

> color #1#!7 byhetero

> select clear

> select add #1/F:8

21 atoms, 23 bonds, 1 residue, 1 model selected  

> select clear

> transparency #1/F 50 cartoons

> select clear

[Repeated 1 time(s)]

> transparency #1/G 50 cartoons

> show #2 models

> hide #1 models

> transparency #2/P 50 cartoons

> hide #2 models

> show #3 models

> transparency #3/G 50 cartoons

> hide #3 models

> show #4 models

> transparency #4/P 50 cartoons

> hide #4 models

> show #5 models

> transparency #5/P 50 cartoons

> hide #5 models

> show #6 models

> transparency #6/I 50 cartoons

> hide #6 models

> select #1/G:1 #2/P:1 #3/G:1 #4/P:1 #5/P:1 #6/I:1 #7/P:1

112 atoms, 119 bonds, 7 residues, 7 models selected  

> select #1/G #2/P #3/G #4/P #5/P #6/I #7/P:1-6

833 atoms, 931 bonds, 42 residues, 7 models selected  
7 [ID: 7] region 7 chains [1-6] RMSD: 0.641  
  

> show sel & #!7 cartoons

> select clear

> transparency #7/P 50 cartoons

> show #1 models

> hide #1 models

> show #3 models

> select #3/A:529@OE2

1 atom, 1 residue, 1 model selected  

> select add #3/A:529@OE1

2 atoms, 1 residue, 1 model selected  

> hbonds sel reveal true

The following atoms were skipped as donors/acceptors due to missing heavy-atom
bond partners: 7m43.pdb #7/A ARG 568 NE  

26 hydrogen bonds found  

> ~hbonds

> select clear

> undo

[Repeated 1 time(s)]

> select clear

> hide sel atoms

> select clear

> select add #7/T:6@N2

1 atom, 1 residue, 1 model selected  

> select add #3/F:6@N2

2 atoms, 2 residues, 2 models selected  

> show sel atoms

> select clear

> select #3/F:6

22 atoms, 24 bonds, 1 residue, 1 model selected  

> select clear

> select add #3/F:6@C3'

1 atom, 1 bond, 1 residue, 2 models selected  

> show sel atoms

> select #3/A:543

5 atoms, 4 bonds, 1 residue, 1 model selected  

> select up

7 atoms, 5 bonds, 2 residues, 2 models selected  

> show sel atoms

> undo

> select clear

> select #3/F:6

22 atoms, 24 bonds, 1 residue, 1 model selected  

> show sel atoms

> hide sel atoms

> select #7/T:6

22 atoms, 24 bonds, 1 residue, 1 model selected  

> show sel atoms

> hide sel atoms

> select #7/A:701@O

1 atom, 1 residue, 1 model selected  

> hide sel atoms

> select #3/W:142@O

1 atom, 1 residue, 1 model selected  

> hide sel atoms

> select #7/A:610@C1

1 atom, 1 residue, 1 model selected  

> hide sel atoms

> select #7/A:517@CZ

1 atom, 1 residue, 1 model selected  

> select up

11 atoms, 10 bonds, 1 residue, 1 model selected  

> hide sel atoms

> select add #3/A:517@CZ

12 atoms, 10 bonds, 2 residues, 2 models selected  

> select up

22 atoms, 20 bonds, 2 residues, 2 models selected  

> hide sel atoms

> select #7/A:610@O1

1 atom, 1 residue, 1 model selected  

> hide sel atoms

> select #7/A:610@C2

1 atom, 1 residue, 1 model selected  

> select up

4 atoms, 3 bonds, 1 residue, 1 model selected  

> hide sel atoms

> show #1 models

> show #2 models

> show #4 models

> show #5 models

> show #6 models

> select clear

> select add #5/A:502

5 atoms, 4 bonds, 1 residue, 1 model selected  

> select clear

> select #2/W:214@O

1 atom, 1 residue, 1 model selected  

> hide sel atoms

> select up

22 atoms, 24 bonds, 1 residue, 1 model selected  

> hide sel atoms

> select up

44 atoms, 48 bonds, 2 residues, 2 models selected  

> hide sel atoms

> select clear

> select #4/C:610@C1

1 atom, 1 residue, 1 model selected  

> select up

4 atoms, 3 bonds, 1 residue, 1 model selected  

> hide sel atoms

> select clear

> hide #6 models

> hide #5 models

> hide #1 models

> hide #2 models

> hide #3 models

> hide #4 models

> select clear

> ui tool show "Side View"

> view orient

> view

> hide #!7 models

> show #1 models

> show #6 models

> show #!7 models

> color #6 #00af01ff

> color #6 #01b401ff

> transparency #7/E 50 cartoons

> transparency #6/E 50 cartoons

> transparency #6/I 50 cartoons

> select clear

> color #1 #ffc550ff

> color #1 #bdff5fff

> color #1 #42ffb4ff

> color #1 #4bffecff

> color #1 #a761ffff

> color #1 #9f5cf2ff

> color #1 #a761ffff

> color #1 #c193ffff

> select clear

> show #2 models

> hide #2 models

> color #2 #f188e7ff

> color #1 #ff81b9ff

> color #1 #ff6b75ff

> color #1 #ffa9a3ff

> color #1 #ff8e78ff

> select clear

> color #1,6#!7 byhetero

> transparency #1/G 50 cartoons

> transparency #1/F 50 cartoons

> hide #1 models

> show #5 models

> hide #6 models

> show #6 models

> hide #6 models

> show #6 models

> hide #6 models

> hide #5 models

> hide #!7 models

> show #!7 models

> show #6 models

> hide #6 models

> show #3 models

> hide #3 models

> show #2 models

> hide #2 models

> show #1 models

> show #6 models

> hide #!7 models

> show #!7 models

> hide #!7 models

> hide #6 models

> show #6 models

> show #!7 models

> hide #!7 models

> show #!7 models

> hide #!7 models

> show #!7 models

> hide #!7 models

> size spec [ stickRadius [-2]rb ]

Expected a keyword  

> size spec [stickRadius [-2]rb ]

Expected a keyword  

> hide #6 models

> show #!7 models

> hide #1 models

> size #7/A [stickRadius [-2]rb ]

Expected a keyword  

> size #7/A [stickRadius [-2]rb ]

Expected a keyword  

> size #7/A stickRadius -2

Cannot reduce stick radius to <= 0  

> size #7/A stickRadius -,1

Invalid "stickRadius" argument: Expected a number >= 0 or a +/- delta  

> size #7/A stickRadius -.1

Changed 2430 bond radii  

> size #7/A stickRadius +.5

Changed 2430 bond radii  

> size #7/A stickRadius -.5

Changed 2430 bond radii  

> size #7/A stickRadius +.005

Changed 2430 bond radii  

> size #7/A stickRadius +.005

Changed 2430 bond radii  

> size #7/A stickRadius +.005

Changed 2430 bond radii  

> size #7/A stickRadius +.005

Changed 2430 bond radii  

> size #7/A stickRadius +.005

Changed 2430 bond radii  

> size #7/A stickRadius +.005

Changed 2430 bond radii  

> size #7/A stickRadius +.005

Changed 2430 bond radii  

> select clear

> size #7/P stickRadius +.005

Changed 133 bond radii  

> size #7/P stickRadius -.005

Changed 133 bond radii  

> size #7/P stickRadius -.005

Changed 133 bond radii  

> size #7/P stickRadius -.005

Changed 133 bond radii  

> size #7/P stickRadius -.005

Changed 133 bond radii  

> size #7/P stickRadius -.005

Changed 133 bond radii  

> size #7/P stickRadius -.005

Changed 133 bond radii  

> size #7/P stickRadius -.005

Changed 133 bond radii  

> size #7/P stickRadius -.005

Changed 133 bond radii  

> size #7/P stickRadius -.005

Changed 133 bond radii  

> size #7/P stickRadius -.005

Changed 133 bond radii  

> size #7/P stickRadius -.005

Changed 133 bond radii  

> size #7/P stickRadius -.005

Changed 133 bond radii  

> size #7/P stickRadius -.005

Changed 133 bond radii  

> size #7/P stickRadius -.005

Changed 133 bond radii  

> size #7/P stickRadius -.005

Changed 133 bond radii  

> size #7/P stickRadius -.005

Changed 133 bond radii  

> size #7/P stickRadius -.005

Changed 133 bond radii  

> size #7/P stickRadius -.005

Changed 133 bond radii  

> size #7/T stickRadius -.005

Changed 251 bond radii  

> size #7/T stickRadius -.005

Changed 251 bond radii  

> size #7/T stickRadius -.005

Changed 251 bond radii  

> size #7/T stickRadius -.005

Changed 251 bond radii  

> size #7/T stickRadius -.005

Changed 251 bond radii  

> size #7/T stickRadius -.005

Changed 251 bond radii  

> size #7/T stickRadius -.005

Changed 251 bond radii  

> size #7/T stickRadius -.005

Changed 251 bond radii  

> size #7/T stickRadius -.005

Changed 251 bond radii  

> size #7/T stickRadius -.005

Changed 251 bond radii  

> size #7/T stickRadius -.005

Changed 251 bond radii  

> size #7/T stickRadius -.005

Cannot reduce bond radius to <= 0  

> size #7/T stickRadius -.005

Cannot reduce bond radius to <= 0  

> size #7/T stickRadius -.005

Cannot reduce bond radius to <= 0  

> size #7/T stickRadius -.005

Cannot reduce bond radius to <= 0  

> size #7/T stickRadius -.005

Cannot reduce bond radius to <= 0  

> size #7/T stickRadius -.005

Cannot reduce bond radius to <= 0  

> size #7/T stickRadius -.005

Cannot reduce bond radius to <= 0  

> size #7/T stickRadius -.005

Cannot reduce bond radius to <= 0  

> size #7/T stickRadius -.005

Cannot reduce bond radius to <= 0  

> size #7/T stickRadius -.005

Cannot reduce bond radius to <= 0  

> size #7/T stickRadius -.005

Cannot reduce bond radius to <= 0  

> show #6 models

> hide #6 models

> size #all stickRadius -.005

Expected a keyword  

> size #all stickRadius -.005

Expected a keyword  

> size #all stickRadius -.005

Expected a keyword  

> size #all stickRadius -.005

Expected a keyword  

> size #1,7ll stickRadius -.005

Expected a keyword  

> size #1,7 stickRadius -.005

Cannot reduce bond radius to <= 0  

> size #1,7 stickRadius -.0005

Cannot reduce bond radius to <= 0  

> size #1-end stickRadius -.0005

Cannot reduce bond radius to <= 0  

> size #1-end stickRadius +0.05

Changed 21387 bond radii  

> size #1-end stickRadius +0.05

Changed 21387 bond radii  

> show #5 models

> hide #5 models

> size #1-end stickRadius -0.05

Changed 21387 bond radii  

> size #1-end stickRadius -0.05

Changed 21387 bond radii  

> show #6 models

> hide #6 models

> size #7 stickRadius -0.05

Changed 2906 bond radii  

> size #7 stickRadius +0.05

Changed 2906 bond radii  

> size #7 stickRadius +0.05

Changed 2906 bond radii  

> size #a1-end stickRadius -0.05

Expected a keyword  

> size #1-end stickRadius -0.05

Changed 21387 bond radii  

> size #1-end stickRadius -0.05

Changed 21387 bond radii  

> size #1-end stickRadius -0.05

Cannot reduce bond radius to <= 0  

> size #1-end stickRadius -0.005

Cannot reduce bond radius to <= 0  

> size #1-end stickRadius -0.005

Cannot reduce bond radius to <= 0  

> size #1-end stickRadius -0.005

Cannot reduce bond radius to <= 0  

> size #1-end stickRadius -0.005

Cannot reduce bond radius to <= 0  

> size #1-end stickRadius -0.005

Cannot reduce bond radius to <= 0  

> size #1-end stickRadius -0.005

Cannot reduce bond radius to <= 0  

> size #1-end stickRadius -0.005

Cannot reduce bond radius to <= 0  

> show #5 models

> show #4 models

> show #3 models

> show #2 models

> show #1 models

> select clear

> hide #2 models

> hide #3 models

> hide #5 models

> hide #4 models

> hide #!7 models

> hide #6 models

> show #!7 models

> hide #1 models

> show #3 models

> hide #3 models

> show #2 models

> select clear

> select #2/T:7

20 atoms, 21 bonds, 1 residue, 1 model selected  

> select clear

> transparency #2/T,P 50 cartoons

> select clear

> select add #2

3213 atoms, 3076 bonds, 583 residues, 1 model selected  

> select subtract #2

Nothing selected  

> select clear

> color #2#!7 byhetero

> show #4 models

> select #2/A:517

11 atoms, 10 bonds, 1 residue, 1 model selected  

> hide sel atoms

> select up

2 atoms, 1 bond, 1 residue, 1 model selected  

> select up

11 atoms, 10 bonds, 1 residue, 1 model selected  

> select up

104 atoms, 105 bonds, 13 residues, 1 model selected  

> hide sel atoms

> select clear

[Repeated 1 time(s)]

> select #1/F:11 #2/T:11 #3/F:11 #4/T:11 #5/T:11 #6/E:11 #7/T:11

154 atoms, 168 bonds, 7 residues, 7 models selected  

> select #1/F #2/T #3/F:1-11 #4/T #5/T #6/E #7/T:1-11

1568 atoms, 1757 bonds, 77 residues, 7 models selected  
6 [ID: 6] region 7 chains [1-11] RMSD: 1.433  
  

> select clear

> select nucleic-acid

2982 atoms, 3332 bonds, 147 residues, 7 models selected  

> hide sel & #2,4#!7 cartoons

> hide sel & #2,4#!7 atoms

> select clear

> select ::name="TTP"

116 atoms, 120 bonds, 4 residues, 4 models selected  

> hide sel & #2,4#!7 atoms

> select clear

> select ::name="DCP"

40 atoms, 41 bonds, 1 residue, 1 model selected  

> hide #2,4#!7 atoms

> undo

> select ::name="DCP"

40 atoms, 41 bonds, 1 residue, 1 model selected  

> hide #2,4#!7 atoms

> undo

> select clear

> hide #2,4#!7 atoms

> undo

> select clear

> show #5 models

> select add #5/A:601@C5

1 atom, 1 residue, 1 model selected  

> select clear

> show #6 models

> select add #7

3062 atoms, 2906 bonds, 26 pseudobonds, 597 residues, 2 models selected  

> select add #6

6070 atoms, 5974 bonds, 26 pseudobonds, 982 residues, 3 models selected  

> select add #5

9137 atoms, 9060 bonds, 26 pseudobonds, 1409 residues, 4 models selected  

> select add #4

12460 atoms, 12152 bonds, 26 pseudobonds, 2086 residues, 5 models selected  

> select add #3

15759 atoms, 15243 bonds, 26 pseudobonds, 2741 residues, 6 models selected  

> select add #2

18972 atoms, 18319 bonds, 26 pseudobonds, 3324 residues, 7 models selected  

> select add #1

21980 atoms, 21387 bonds, 26 pseudobonds, 3709 residues, 8 models selected  

> select nucleic-acid

2982 atoms, 3332 bonds, 147 residues, 7 models selected  

> hide sel & #2,4-6#!7 cartoons

> hide sel & #2,4-6#!7 atoms

> select clear

> select add #5/A:601@C1'

1 atom, 1 residue, 1 model selected  

> select up

40 atoms, 41 bonds, 1 residue, 1 model selected  

> hide sel atoms

> select clear

> select #7/A:601@CA

1 atom, 1 residue, 1 model selected  

> select clear

> select ::name="CA"

7 atoms, 7 residues, 5 models selected  

> hide sel & #2,4-5#!7 atoms

> select clear

> show #1 models

> show #3 models

> select nucleic-acid

2982 atoms, 3332 bonds, 147 residues, 7 models selected  

> hide sel atoms

> hide sel cartoons

> select clear

> select up

2 atoms, 1 bond, 1 residue, 1 model selected  

> select up

29 atoms, 30 bonds, 1 residue, 1 model selected  

> hide sel atoms

> select clear

> select #6/C:517@NE

1 atom, 1 residue, 1 model selected  

> select up

11 atoms, 10 bonds, 1 residue, 1 model selected  

> hide sel atoms

> select add #5/A:517@CD

12 atoms, 10 bonds, 2 residues, 2 models selected  

> select up

22 atoms, 20 bonds, 2 residues, 2 models selected  

> hide sel atoms

> select clear

> hide #5 models

> show #5 models

> select clear

> hide #5 models

> show #5 models

> hide #5 models

> show #5 models

> ui tool show Distances

> distance style color #88ce80

[Repeated 2 time(s)]Exactly two atoms must be selected!  

> select add #4/A:492@NZ

1 atom, 1 residue, 1 model selected  

> select add #4/A:529@OD1

2 atoms, 2 residues, 1 model selected  

> select add #4/A:529@OD2

3 atoms, 2 residues, 1 model selected  

> select subtract #4/A:529@OD2

2 atoms, 2 residues, 1 model selected  

> distance #4/A:492@NZ #4/A:529@OD1

Distance between refineptet.pdb #4/A LYS 492 NZ (alt loc A) and ASP 529 OD1:
5.004Å  

> select clear

> select #7/A:298

9 atoms, 8 bonds, 1 residue, 1 model selected  

> select #7/A:289-298

74 atoms, 76 bonds, 10 residues, 1 model selected  

> ui dockable false "Sequence Viewer"

> ui dockable false Log

> ui windowfill toggle

[Repeated 1 time(s)]Alignment identifier is 7/A  

> select clear

> hide #1 models

> hide #2 models

> hide #3 models

> hide #5 models

> hide #6 models

> hide #!7 models

> close #8

> ui tool show Distances

> hide #4 models

> show #1 models

> distance style color #ea8d77

[Repeated 2 time(s)]

> select #1/A:492@NH1

1 atom, 1 residue, 1 model selected  

> select add #1/A:530@OH

2 atoms, 2 residues, 1 model selected  

> distance #1/A:492@NH1 #1/A:530@OH

Distance between refine.pdb #1/A ARG 492 NH1 and TYR 530 OH: 3.885Å  

> select clear

> select #1/A:492@NH2

1 atom, 1 residue, 1 model selected  

> select add #1/A:529@OE1

2 atoms, 2 residues, 1 model selected  

> distance #1/A:492@NH2 #1/A:529@OE1

Distance between refine.pdb #1/A ARG 492 NH2 and GLU 529 OE1: 3.580Å  

> select clear

> distance style color #f063e5

[Repeated 2 time(s)]

> distance style color #f064e5

[Repeated 2 time(s)]

> distance style color #f0ab67

[Repeated 2 time(s)]

> distance style color #050302

[Repeated 2 time(s)]

> distance style color #040302

[Repeated 2 time(s)]

> distance style color black

[Repeated 2 time(s)]

> distance style color #010000

[Repeated 2 time(s)]

> distance style color #040302

[Repeated 2 time(s)]

> distance style color #070503

[Repeated 2 time(s)]

> distance style color #0a0704

[Repeated 2 time(s)]

> distance style color #0b0805

[Repeated 2 time(s)]

> distance style color #0c0905

[Repeated 2 time(s)]

> distance style color #0f0a06

[Repeated 2 time(s)]

> distance style color #110c07

[Repeated 2 time(s)]

> distance style color #1a130b

[Repeated 2 time(s)]

> distance style color #20170e

[Repeated 2 time(s)]

> distance style color #251a10

[Repeated 2 time(s)]

> distance style color #291d12

[Repeated 2 time(s)]

> distance style color #2e2114

[Repeated 2 time(s)]

> distance style color #2f2214

[Repeated 2 time(s)]

> distance style color #312315

[Repeated 2 time(s)]

> distance style color #322415

[Repeated 2 time(s)]

> distance style color #332416

[Repeated 2 time(s)]

> distance style color #342516

[Repeated 2 time(s)]

> distance style color #362617

[Repeated 2 time(s)]

> distance style color #3a2919

[Repeated 2 time(s)]

> distance style color #412e1c

[Repeated 2 time(s)]

> distance style color #4b3520

[Repeated 2 time(s)]

> distance style color #5d4228

[Repeated 2 time(s)]

> distance style color #684a2c

[Repeated 2 time(s)]

> distance style color #715030

[Repeated 2 time(s)]

> distance style color #7c5835

[Repeated 2 time(s)]

> distance style color #825c37

[Repeated 2 time(s)]

> distance style color #865f39

[Repeated 2 time(s)]

> distance style color #8a633b

[Repeated 2 time(s)]

> distance style color #8d643c

[Repeated 2 time(s)]

> distance style color #8e653d

[Repeated 2 time(s)]

> distance style color #8a623b

[Repeated 2 time(s)]

> distance style color #845e39

[Repeated 2 time(s)]

> distance style color #66492c

[Repeated 2 time(s)]

> distance style color #63472b

[Repeated 2 time(s)]

> distance style color #62462a

[Repeated 2 time(s)]

> distance style color #5e4328

[Repeated 2 time(s)]

> distance style color #5c4127

[Repeated 2 time(s)]

> distance style color #5a4027

[Repeated 2 time(s)]

> distance style color #503922

[Repeated 2 time(s)]

> distance style color #48331f

[Repeated 2 time(s)]

> distance style color #47331e

[Repeated 2 time(s)]

> distance style color #47331f

[Repeated 2 time(s)]

> distance style color #48341f

[Repeated 2 time(s)]

> select clear

[Repeated 1 time(s)]

> hide #1 models

> show #2 models

> select #2/A:492@NZ

1 atom, 1 residue, 1 model selected  

> select add #2/A:529@OE1

2 atoms, 2 residues, 1 model selected  

> distance #2/A:492@NZ #2/A:529@OE1

Distance between refinemutk2.pdb #2/A LYS 492 NZ and GLU 529 OE1: 4.728Å  

> select clear

> select add #2/A:529@OE2

1 atom, 1 residue, 1 model selected  

> select add #2/A:492@NZ

2 atoms, 1 pseudobond, 2 residues, 2 models selected  

> distance #2/A:529@OE2 #2/A:492@NZ

Distance between refinemutk2.pdb #2/A GLU 529 OE2 and LYS 492 NZ: 3.744Å  

> select add #2/A:529@OE1

3 atoms, 2 residues, 1 model selected  

> select subtract #2/A:529@OE2

2 atoms, 2 residues, 1 model selected  

> select clear

> ~distance #2/A:492@NZ #2/A:529@OE1

> ~distance #2/A:529@OE2 #2/A:492@NZ

> ~distance #1/A:492@NH1 #1/A:530@OH

> ~distance #1/A:492@NH2 #1/A:529@OE1

Exactly two atoms must be selected!  

> select add #2/A:529@OE2

1 atom, 1 residue, 1 model selected  

> select add #2/A:492@NZ

2 atoms, 2 residues, 1 model selected  

> distance #2/A:529@OE2 #2/A:492@NZ

Distance between refinemutk2.pdb #2/A GLU 529 OE2 and LYS 492 NZ: 3.744Å  

> select clear

> distance style radius 0

> distance style radius 0.01

[Repeated 3 time(s)]

> select clear

> show #1 models

> select clear

> select #1/A:492@NH1

1 atom, 1 residue, 1 model selected  

> select add #1/A:530@OH

2 atoms, 2 residues, 1 model selected  

> distance #1/A:492@NH1 #1/A:530@OH

Distance between refine.pdb #1/A ARG 492 NH1 and TYR 530 OH: 3.885Å  

> select clear

> select add #1/A:492@NH2

1 atom, 1 residue, 1 model selected  

> select add #1/A:529@OE1

2 atoms, 2 residues, 1 model selected  

> distance #1/A:492@NH2 #1/A:529@OE1

Distance between refine.pdb #1/A ARG 492 NH2 and GLU 529 OE1: 3.580Å  

> select clear

[Repeated 1 time(s)]

> hide #1 models

> hide #2 models

> show #3 models

> select #3/A:492@NE

1 atom, 1 residue, 1 model selected  

> select add #3/A:490@OD1

2 atoms, 2 residues, 1 model selected  

> distance #3/A:492@NE #3/A:490@OD1

Distance between refinemutR.pdb #3/A ARG 492 NE and ASP 490 OD1: 2.816Å  

> select clear

> select #3/A:492@NH2

1 atom, 1 residue, 1 model selected  

> select add #3/A:490@OD2

2 atoms, 2 residues, 1 model selected  

> distance #3/A:492@NH2 #3/A:490@OD2

Distance between refinemutR.pdb #3/A ARG 492 NH2 and ASP 490 OD2: 3.220Å  

> select clear

> hide #3 models

> show #4 models

> select #4/A:492@NZ

1 atom, 1 residue, 1 model selected  

> select clear

> show #5 models

> hide #4 models

> select add #5/A:492@NZ

1 atom, 1 residue, 1 model selected  

> select add #5/A:429@OD1

2 atoms, 2 residues, 1 model selected  

> distance #5/A:492@NZ #5/A:429@OD1

Distance between refine.pdb #5/A LYS 492 NZ and ASP 429 OD1: 2.743Å  

> select clear

> hide #5 models

> show #6 models

> select clear

> select #6/C:492@NH2

1 atom, 1 residue, 1 model selected  

> select add #6/C:529@OE1

2 atoms, 2 residues, 1 model selected  

> distance #6/C:492@NH2 #6/C:529@OE1

Distance between refine.pdb #6/C ARG 492 NH2 and GLU 529 OE1: 3.525Å  

> select clear

> select add #6/C:492@NH1

1 atom, 1 residue, 1 model selected  

> select add #6/C:429@OD1

2 atoms, 2 residues, 1 model selected  

> distance #6/C:492@NH1 #6/C:429@OD1

Distance between refine.pdb #6/C ARG 492 NH1 and ASP 429 OD1: 6.329Å  

> select clear

> select add #6/C:492@NE

1 atom, 1 residue, 1 model selected  

> select add #6/C:429@OD1

2 atoms, 2 residues, 1 model selected  

> distance #6/C:492@NE #6/C:429@OD1

Distance between refine.pdb #6/C ARG 492 NE and ASP 429 OD1: 5.280Å  

> ~distance #1/A:492@NH2 #1/A:529@OE1

> ~distance #3/A:492@NH2 #3/A:490@OD2

> ~distance #3/A:492@NE #3/A:490@OD1

> ~distance #6/C:492@NH1 #6/C:429@OD1

> ~distance #1/A:492@NH1 #1/A:530@OH

> show #1 models

> select add #1/A:492@NH1

3 atoms, 3 residues, 2 models selected  

> select add #1/A:530@OH

4 atoms, 4 residues, 2 models selected  

> select clear

> select add #1/A:492@NH1

1 atom, 1 residue, 1 model selected  

> select add #6/C:530@OH

2 atoms, 2 residues, 2 models selected  

> distance #1/A:492@NH1 #6/C:530@OH

Distance between refine.pdb #1/A ARG 492 NH1 and refine.pdb #6/C TYR 530 OH:
3.837Å  

> select clear

> select add #1/A:492@NH2

1 atom, 1 residue, 1 model selected  

> select add #1/A:529@OE1

2 atoms, 2 residues, 1 model selected  

> distance #1/A:492@NH2 #1/A:529@OE1

Distance between refine.pdb #1/A ARG 492 NH2 and GLU 529 OE1: 3.580Å  

> select clear

[Repeated 2 time(s)]

> ~distance #6/C:492@NE #6/C:429@OD1

> hide #1 models

> hide #6 models

> show #!7 models

> hide #!7 models

> show #1 models

> select clear

[Repeated 1 time(s)]

> select add #1/A:492@NH1

1 atom, 1 pseudobond, 1 residue, 2 models selected  

> select clear

[Repeated 2 time(s)]

> hide #!8 models

> show #!8 models

> show #2 models

> select clear

> hide #2 models

> select add #1/A:530@OH

1 atom, 1 residue, 1 model selected  
Exactly two atoms must be selected!  

> select clear

> select add #1/A:492@NH1

1 atom, 1 residue, 1 model selected  

> select add #1/A:530@OH

2 atoms, 2 residues, 1 model selected  

> distance #1/A:492@NH1 #1/A:530@OH

Distance between refine.pdb #1/A ARG 492 NH1 and TYR 530 OH: 3.885Å  

> select clear

[Repeated 1 time(s)]

> distance style decimalPlaces 2

[Repeated 2 time(s)]

> distance style decimalPlaces 1

[Repeated 2 time(s)]

> distance style decimalPlaces 2

[Repeated 2 time(s)]

> distance style dashes 8

[Repeated 2 time(s)]

> distance style dashes 7

[Repeated 2 time(s)]

> distance style dashes 5

[Repeated 2 time(s)]

> distance style radius 0.01

> distance style symbol false

[Repeated 2 time(s)]

> distance style symbol true

[Repeated 2 time(s)]

> show #2 models

> show #3 models

> show #4 models

> show #5 models

> show #6 models

> show #!7 models

> hide #1 models

> hide #2 models

> hide #4 models

> hide #5 models

> hide #6 models

> hide #!7 models

> select add #3/A:492@NE

1 atom, 1 residue, 1 model selected  

> select add #3/A:490@OD1

2 atoms, 2 residues, 1 model selected  

> distance #3/A:492@NE #3/A:490@OD1

Distance between refinemutR.pdb #3/A ARG 492 NE and ASP 490 OD1: 2.82Å  

> select clear

> select add #3/A:492@NH2

1 atom, 1 residue, 1 model selected  

> select add #3/A:490@OD2

2 atoms, 2 residues, 1 model selected  

> distance #3/A:492@NH2 #3/A:490@OD2

Distance between refinemutR.pdb #3/A ARG 492 NH2 and ASP 490 OD2: 3.22Å  

> select clear

> hide #3 models

> show #1 models

> hide #1 models

> show #6 models

> show #1 models

> hide #1 models

> show #1 models

> hide #1 models

> show #1 models

> select clear

> select add #6/C:492@NE

1 atom, 1 residue, 1 model selected  

> select clear

> select add #6/C:492@NE

1 atom, 1 residue, 1 model selected  

> select add #1/A:490@OD1

2 atoms, 2 residues, 2 models selected  

> distance #6/C:492@NE #1/A:490@OD1

Distance between refine.pdb #6/C ARG 492 NE and refine.pdb #1/A ASP 490 OD1:
3.67Å  

> select clear

> select add #6/C:492@NE

1 atom, 1 residue, 1 model selected  

> select add #1/A:490@OD2

2 atoms, 2 residues, 2 models selected  

> distance #6/C:492@NE #1/A:490@OD2

Distance between refine.pdb #6/C ARG 492 NE and refine.pdb #1/A ASP 490 OD2:
3.45Å  

> select clear

> distance style dashes 5

> distance style radius 0.01

> distance style decimalPlaces 2

> select clear

> ~distance #6/C:492@NH2 #6/C:529@OE1

> select clear

> color #1 #50ff9eff

> color #1 #55ff65ff

> color #1 #50f260ff

> color #1 #4ff299ff

> color #1 #4ceb95ff

> color #1,6 byhetero

> select clear

> hide #1 models

> hide #6 models

> show #3 models

> hide #3 models

> show #1 models

> show #6 models

> select clear

> distance style color #5b4529

[Repeated 2 time(s)]

> distance style color #5b4223

[Repeated 2 time(s)]

> distance style color #5b4122

[Repeated 2 time(s)]

> distance style color #5b4121

[Repeated 2 time(s)]

> distance style color #5b4022

[Repeated 2 time(s)]

> distance style color #5b3f23

[Repeated 2 time(s)]

> distance style color #5b3d24

[Repeated 2 time(s)]

> distance style color #5b322b

[Repeated 2 time(s)]

> distance style color #5b312c

[Repeated 2 time(s)]

> distance style color #5b2f2c

[Repeated 2 time(s)]

> distance style color #5b2e2c

[Repeated 2 time(s)]

> distance style color #5b2c2e

[Repeated 2 time(s)]

> distance style color #5b2c32

[Repeated 2 time(s)]

> distance style color #5b2c34

[Repeated 2 time(s)]

> distance style color #5b2b39

[Repeated 2 time(s)]

> distance style color #5b2a3c

[Repeated 2 time(s)]

> distance style color #5b2a40

[Repeated 2 time(s)]

> distance style color #5b2843

[Repeated 2 time(s)]

> distance style color #5b2b3b

[Repeated 2 time(s)]

> distance style color #5b2c38

[Repeated 2 time(s)]

> distance style color #5b3a2a

[Repeated 2 time(s)]

> distance style color #5b3c29

[Repeated 2 time(s)]

> distance style color #5b3d29

[Repeated 2 time(s)]

> distance style color #5b3e28

[Repeated 2 time(s)]

> distance style color #5b4227

[Repeated 2 time(s)]

> distance style color #5b4327

[Repeated 2 time(s)]

> distance style color #5b4427

[Repeated 2 time(s)]

> distance style color #5b4426

[Repeated 2 time(s)]

> distance style color #5b4427

[Repeated 2 time(s)]

> select clear

> ~distance #1/A:492@NH1 #1/A:530@OH

> hide #1 models

> hide #6 models

> show #2 models

> select add #2/A:492@NZ

1 atom, 1 residue, 1 model selected  

> select add #2/A:529@OE1

2 atoms, 2 residues, 1 model selected  

> distance #2/A:492@NZ #2/A:529@OE1

Distance between refinemutk2.pdb #2/A LYS 492 NZ and GLU 529 OE1: 4.73Å  

> select clear

> ~distance #2/A:492@NZ #2/A:529@OE1

> hide #2 models

> show #4 models

> show #5 models

> select clear

> select add #5/A:429@OD2

1 atom, 1 residue, 1 model selected  

> select add #5/A:492@NZ

2 atoms, 2 residues, 1 model selected  

> distance #5/A:429@OD2 #5/A:492@NZ

Distance between refine.pdb #5/A ASP 429 OD2 and LYS 492 NZ: 4.58Å  

> select clear

[Repeated 1 time(s)]

> ~distance #5/A:429@OD2 #5/A:492@NZ

> distance style color #6f5635

[Repeated 2 time(s)]

> distance style color #785d39

[Repeated 2 time(s)]

> distance style color #d1a264

[Repeated 2 time(s)]

> distance style color #ffc67a

[Repeated 2 time(s)]

> distance style color #fff02d

[Repeated 2 time(s)]

> distance style color #fff12c

[Repeated 2 time(s)]

> distance style color #fff22c

[Repeated 2 time(s)]

> distance style color #fff32a

[Repeated 2 time(s)]

> distance style color #fff429

[Repeated 2 time(s)]

> distance style color #fffa17

[Repeated 2 time(s)]

> distance style color #fffa12

[Repeated 2 time(s)]

> distance style color #fffa0c

[Repeated 2 time(s)]

> distance style color #fff803

[Repeated 2 time(s)]

> distance style color #fff700

[Repeated 2 time(s)]

> hide #5 models

> hide #4 models

> show #1 models

> select clear

[Repeated 2 time(s)]

> distance style color #ff0207

[Repeated 2 time(s)]

> distance style color #ff0106

[Repeated 2 time(s)]

> distance style color #ff0002

[Repeated 2 time(s)]

> distance style color red

[Repeated 2 time(s)]

> select clear

> hide #1 models

> show #2 models

> show #1 models

> hide #1 models

> hide #2 models

> show #3 models

> hide #3 models

> show #4 models

> hide #4 models

> show #5 models

> show #4 models

> hide #4 models

> hide #5 models

> show #6 models

> show #1 models

> hide #6 models

> hide #1 models

> show #!7 models

> hide #!7 models

> show #4 models

> select add #4/A:492@NZ

1 atom, 1 residue, 1 model selected  

> select add #4/A:529@OD1

2 atoms, 2 residues, 1 model selected  

> hbonds sel reveal true

The following atoms were skipped as donors/acceptors due to missing heavy-atom
bond partners: 7m43.pdb #7/A ARG 568 NE  

7 hydrogen bonds found  

> select add #4/W:218@O

3 atoms, 3 residues, 1 model selected  

> select clear

> size atomRadius #1-end +.5

Invalid "atomRadius" argument: Expected 'default' or a number >= 0 or a +/-
delta  

> size atomRadius #1-end | default

Invalid "atomRadius" argument: Expected 'default' or a number >= 0 or a +/-
delta  

> size atomRadius #1-end default

Invalid "atomRadius" argument: Expected 'default' or a number >= 0 or a +/-
delta  

> size atomRadius #1-end default

Invalid "atomRadius" argument: Expected 'default' or a number >= 0 or a +/-
delta  

> size atomRadius default #1-end

Expected a keyword  

> show #1 models

> show #2 models

> show #3 models

> show #5 models

> show #6 models

> show #!7 models

> size atomRadius default #1

Expected a keyword  

> size atomRadius #1 default

Invalid "atomRadius" argument: Expected 'default' or a number >= 0 or a +/-
delta  

> size atomRadius default

Changed 21980 atom radii  

> select clear

> size atomRadius default

Changed 21980 atom radii  

> size atomRadius +0.5

Changed 21980 atom radii  

> size ballScale +0.5

Changed 7 ball scales  

> size ballScale +0.5

Changed 7 ball scales  

> size ballScale +0.5

Changed 7 ball scales  

> size ballScale +0.5

Changed 7 ball scales  

> size ballScale +0.5

Changed 7 ball scales  

> size ballScale +0.5

Changed 7 ball scales  

> size ballScale +0.5

Changed 7 ball scales  

> size ballScale +0.5

Changed 7 ball scales  

> size ballScale +0.5

Changed 7 ball scales  

> size ballScale +0.5

Changed 7 ball scales  

> size ballScale +0.5

Changed 7 ball scales  

> size ballScale +0.5

Changed 7 ball scales  

> size ballScale +0.5

Changed 7 ball scales  

> size ballScale +0.5

Changed 7 ball scales  

> size ballScale +0.5

Changed 7 ball scales  

> size ballScale +0.5

Changed 7 ball scales  

> size ballScale +0.5

Changed 7 ball scales  

> size ballScale +0.5

Changed 7 ball scales  

> size ballScale +0.5

Changed 7 ball scales  

> size ballScale +0.5

Changed 7 ball scales  

> size ballScale +0.5

Changed 7 ball scales  

> size ballScale +0.5

Changed 7 ball scales  

> size ballScale +0.5

Changed 7 ball scales  

> size ballScale +0.5

Changed 7 ball scales  

> size ballScale +0.5

Changed 7 ball scales  

> select clear

> size stickRadius #3/W +.5

Invalid "stickRadius" argument: Expected a number >= 0 or a +/- delta  

> size stickRadius #3/W +5

Invalid "stickRadius" argument: Expected a number >= 0 or a +/- delta  

> size stickRadius #3/W +.2

Invalid "stickRadius" argument: Expected a number >= 0 or a +/- delta  

> size stickRadius #3 +.2

Invalid "stickRadius" argument: Expected a number >= 0 or a +/- delta  

> size stickRadius #3 +.2

Invalid "stickRadius" argument: Expected a number >= 0 or a +/- delta  

> size stickRadius #3 +.2

Invalid "stickRadius" argument: Expected a number >= 0 or a +/- delta  

> size stickRadius #3 +.2

Invalid "stickRadius" argument: Expected a number >= 0 or a +/- delta  

> size stickRadius #3/W +.2

Invalid "stickRadius" argument: Expected a number >= 0 or a +/- delta  

> size stickRadius #3/W +.2

Invalid "stickRadius" argument: Expected a number >= 0 or a +/- delta  

> size stickradius+.2 #3/W

Expected a keyword  

> size stickRadius #3/W

Invalid "stickRadius" argument: Expected a number >= 0 or a +/- delta  

> size stickRadius #3/W .2

Invalid "stickRadius" argument: Expected a number >= 0 or a +/- delta  

> size stickRadius #3/W 2

Invalid "stickRadius" argument: Expected a number >= 0 or a +/- delta  

> size stickRadius #3/W 0.5

Invalid "stickRadius" argument: Expected a number >= 0 or a +/- delta  

> size stickRadius #3/W +0.5

Invalid "stickRadius" argument: Expected a number >= 0 or a +/- delta  

> toolshed show

> ui tool show "Basic Actions"

> size stickRadius #3/W +0.5

Invalid "stickRadius" argument: Expected a number >= 0 or a +/- delta  

> size stickRadius #3/W +0.5

Invalid "stickRadius" argument: Expected a number >= 0 or a +/- delta  

> size stickRadius #3/W -0.5

Invalid "stickRadius" argument: Expected a number >= 0 or a +/- delta  

> size stickRadius #3/W +1

Invalid "stickRadius" argument: Expected a number >= 0 or a +/- delta  

> size stickRadius #3/W 3

Invalid "stickRadius" argument: Expected a number >= 0 or a +/- delta  

> size stickRadius #3 3

Invalid "stickRadius" argument: Expected a number >= 0 or a +/- delta  

> size stickRadius #3 +,5

Invalid "stickRadius" argument: Expected a number >= 0 or a +/- delta  

> size stickRadius #3 1

Invalid "stickRadius" argument: Expected a number >= 0 or a +/- delta  

> size stickRadius #3 +0.5

Invalid "stickRadius" argument: Expected a number >= 0 or a +/- delta  

> size stickRadius #3 +.5

Invalid "stickRadius" argument: Expected a number >= 0 or a +/- delta  

> size stickRadius #3 +.005

Invalid "stickRadius" argument: Expected a number >= 0 or a +/- delta  

> size ligand atomRadius +.5

Changed 1656 atom radii  

> size #3/W atomRadius +.5

Changed 306 atom radii  

> size #3/W stickRadius +.5

Changed 0 bond radii  

> size #3/W stickRadius -.2

Changed 0 bond radii  

> hide #1 models

> hide #2 models

> hide #3 models

> hide #5 models

> hide #6 models

> hide #!7 models

> hide #!8 models

> show #!8 models

> size #4/W stickRadius +.2

Changed 0 bond radii  

> select clear

> select #4/A:529

8 atoms, 7 bonds, 1 residue, 1 model selected  

> hbonds sel reveal true

The following atoms were skipped as donors/acceptors due to missing heavy-atom
bond partners: 7m43.pdb #7/A ARG 568 NE  

13 hydrogen bonds found  

> select clear

> select #4/W:8@O

1 atom, 1 residue, 1 model selected  

> select add #4/W:218@O

2 atoms, 2 residues, 1 model selected  

> select add #4/A:492@NZ

3 atoms, 3 residues, 1 model selected  

> select add #4/W:295@O

4 atoms, 4 residues, 1 model selected  

> select add #4/A:529@OD1

5 atoms, 5 residues, 1 model selected  

> hbonds sel reveal true

The following atoms were skipped as donors/acceptors due to missing heavy-atom
bond partners: 7m43.pdb #7/A ARG 568 NE  

87 hydrogen bonds found  

> select clear

> select up

2 atoms, 1 bond, 1 residue, 1 model selected  

> select up

4 atoms, 3 bonds, 1 residue, 1 model selected  

> hide sel atoms

> select add #4/A:498@CD

5 atoms, 3 bonds, 2 residues, 1 model selected  

> select up

13 atoms, 11 bonds, 2 residues, 1 model selected  

> hide sel atoms

> select clear

> select #4/A:529@OD2

1 atom, 1 residue, 1 model selected  

> select add #4/A:529@OD1

2 atoms, 1 residue, 1 model selected  

> select add #4/W:218@O

3 atoms, 1 pseudobond, 2 residues, 2 models selected  

> select add #4/W:295@O

4 atoms, 1 pseudobond, 3 residues, 2 models selected  

> select add #4/A:492@NZ

5 atoms, 2 pseudobonds, 4 residues, 2 models selected  

> hbonds sel reveal true

The following atoms were skipped as donors/acceptors due to missing heavy-atom
bond partners: 7m43.pdb #7/A ARG 568 NE  

67 hydrogen bonds found  

> select clear

> select add #4/C:610@O1

1 atom, 1 residue, 1 model selected  

> select up

4 atoms, 3 bonds, 1 residue, 1 model selected  

> select up

53 atoms, 47 bonds, 8 residues, 1 model selected  

> select down

4 atoms, 3 bonds, 1 residue, 1 model selected  

> hide sel atoms

> select clear

> undo

[Repeated 8 time(s)]

> select clear

> select #4/A:529

8 atoms, 7 bonds, 1 residue, 1 model selected  

> select add #4/W:8@O

9 atoms, 7 bonds, 2 residues, 1 model selected  

> select add #4/W:218@O

10 atoms, 7 bonds, 3 residues, 1 model selected  

> select add #4/W:295@O

11 atoms, 7 bonds, 4 residues, 1 model selected  

> select add #4/A:492@NZ

12 atoms, 7 bonds, 2 pseudobonds, 5 residues, 2 models selected  

> hbonds sel reveal true

The following atoms were skipped as donors/acceptors due to missing heavy-atom
bond partners: 7m43.pdb #7/A ARG 568 NE  

96 hydrogen bonds found  

> select clear

> select add #4/A:530

10 atoms, 10 bonds, 1 residue, 1 model selected  

> select add #4/A:529

18 atoms, 17 bonds, 2 residues, 1 model selected  

> select add #4/W:218@O

19 atoms, 17 bonds, 1 pseudobond, 3 residues, 2 models selected  

> select add #4/W:295@O

20 atoms, 17 bonds, 2 pseudobonds, 4 residues, 2 models selected  

> select add #4/A:492@NZ

21 atoms, 17 bonds, 3 pseudobonds, 5 residues, 2 models selected  

> hbonds sel reveal true

The following atoms were skipped as donors/acceptors due to missing heavy-atom
bond partners: 7m43.pdb #7/A ARG 568 NE  

99 hydrogen bonds found  

> select clear

> select add #4/T:8@O5'

1 atom, 1 residue, 1 model selected  

> select up

21 atoms, 23 bonds, 1 residue, 1 model selected  

> hide sel atoms

> select up

23 atoms, 24 bonds, 2 residues, 1 model selected  

> hide sel atoms

> select up

25 atoms, 25 bonds, 3 residues, 1 model selected  

> hide sel atoms

> select add #4/A:498@OE2

26 atoms, 25 bonds, 3 residues, 1 model selected  

> hide sel atoms

> select clear

> select add #4/W:93@O

1 atom, 1 residue, 1 model selected  

> hide sel atoms

> select add #4/A:528@OG

2 atoms, 2 residues, 1 model selected  

> select up

7 atoms, 5 bonds, 2 residues, 1 model selected  

> hide sel atoms

> select add #4/C:610@O1

8 atoms, 5 bonds, 1 pseudobond, 3 residues, 2 models selected  

> select up

11 atoms, 8 bonds, 1 pseudobond, 3 residues, 2 models selected  

> hide sel atoms

> select add #4/A:498

20 atoms, 16 bonds, 1 pseudobond, 4 residues, 2 models selected  

> select up

267 atoms, 269 bonds, 1 pseudobond, 38 residues, 2 models selected  

> select down

20 atoms, 16 bonds, 1 pseudobond, 4 residues, 2 models selected  

> select clear

> select add #4/A:498

9 atoms, 8 bonds, 1 residue, 1 model selected  

> select up

27 atoms, 27 bonds, 3 residues, 1 model selected  

> hide sel atoms

> select clear

> show #1 models

> hide #1 models

> hide #4 models

> show #1 models

> hide #1 models

> show #2 models

> select add #2/T:8@O5'

1 atom, 1 residue, 1 model selected  

> select up

21 atoms, 23 bonds, 1 residue, 1 model selected  

> hide sel atoms

> select add #2/A:498

30 atoms, 31 bonds, 2 residues, 1 model selected  

> hide sel atoms

> select add #2/A:528

36 atoms, 36 bonds, 3 residues, 1 model selected  

> hide sel atoms

Drag select of 1 atoms  
Drag select of 2 atoms  
Drag select of 1 atoms  
[Repeated 2 time(s)]

> hide sel atoms

> select clear

[Repeated 1 time(s)]

> show #3 models

> hide #2 models

> select add #3/W:85@O

1 atom, 1 residue, 1 model selected  

> select #3/W:151@O

1 atom, 1 residue, 1 model selected  

> hide sel atoms

Drag select of 1 atoms  
[Repeated 1 time(s)]

> hide sel atoms

Drag select of 1 atoms  

> hide sel atoms

Drag select of 1 atoms  

> hide sel atoms

> select add #3/F:8@O5'

2 atoms, 2 residues, 1 model selected  

> select up

22 atoms, 23 bonds, 2 residues, 1 model selected  

> hide sel atoms

> select add #3/W:245@O

23 atoms, 23 bonds, 3 residues, 1 model selected  

> select add #3/W:118@O

24 atoms, 23 bonds, 4 residues, 1 model selected  

> select add #3/W:26@O

25 atoms, 23 bonds, 5 residues, 1 model selected  

> hide sel atoms

> select add #3/F:7@C4'

26 atoms, 23 bonds, 6 residues, 1 model selected  

> select up

45 atoms, 45 bonds, 6 residues, 1 model selected  

> hide sel atoms

> select add #3/W:85@O

46 atoms, 45 bonds, 7 residues, 1 model selected  

> hide sel atoms

> select add #3/A:528

52 atoms, 50 bonds, 8 residues, 1 model selected  

> hide sel atoms

> select add #3/A:498

61 atoms, 58 bonds, 9 residues, 1 model selected  

> hide sel atoms

> hide #3 models

> show #4 models

> hide #4 models

> show #5 models

> select add #5/T:8@C5'

62 atoms, 58 bonds, 10 residues, 2 models selected  

> select up

82 atoms, 81 bonds, 10 residues, 2 models selected  

> hide sel & #5 atoms

> select add #5/A:498

91 atoms, 89 bonds, 11 residues, 2 models selected  

> select add #5/A:528

97 atoms, 94 bonds, 12 residues, 2 models selected  

> hide sel & #5 atoms

> select clear

> hide #5 models

> show #6 models

> select add #6/C:498

9 atoms, 8 bonds, 1 residue, 1 model selected  

> select add #6/C:528

17 atoms, 15 bonds, 2 residues, 1 model selected  

> hide sel atoms

> hide #6 models

> show #!7 models

> select clear

> select up

2 atoms, 1 bond, 1 residue, 1 model selected  

> select up

20 atoms, 21 bonds, 1 residue, 1 model selected  

> select up

224 atoms, 251 bonds, 11 residues, 1 model selected  

> hide sel atoms

> select clear

Drag select of 1 atoms  
[Repeated 3 time(s)]

> hide sel atoms

Drag select of 1 atoms  

> hide sel atoms

> select #7/A:780@O

1 atom, 1 residue, 1 model selected  

> hide sel atoms

> select add #7/A:610@O1

2 atoms, 2 residues, 1 model selected  

> select up

5 atoms, 3 bonds, 2 residues, 1 model selected  

> hide sel atoms

> select add #7/A:517@CZ

6 atoms, 3 bonds, 3 residues, 1 model selected  

> select clear

> select #7/A:517@NE

1 atom, 1 residue, 1 model selected  

> select up

11 atoms, 10 bonds, 1 residue, 1 model selected  

> hide sel atoms

Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 652, in <lambda>  
gw.mouseReleaseEvent = lambda e, s=self: s._dispatch_mouse_event(e,
"mouse_up")  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 550, in
_dispatch_mouse_event  
f(MouseEvent(event, modifiers=modifiers))  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 70, in mouse_up  
mouse_select(event, mode, self.session, self.view)  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 209, in mouse_select  
pick = view.picked_object(x, y)  
^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 831, in picked_object  
p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
beyond,  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 863, in picked_object_on_segment  
p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/models.py", line 143, in first_intercept  
pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 703, in first_intercept  
ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 736, in _position_intercepts  
p = d.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/ribbon.py", line 685, in first_intercept  
p = super().first_intercept(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1064, in first_intercept  
p = self._first_intercept_excluding_children(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1108, in
_first_intercept_excluding_children  
cxyz1, cxyz2 = self.positions[i].inverse() * (mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/place.py", line 201, in inverse  
self._inverse = Place(m34.invert_matrix(self._matrix))  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/matrix.py", line 141, in invert_matrix  
rinv[:, :] = matrix_inverse(r)  
^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 561, in inv  
ainv = _umath_linalg.inv(a, signature=signature, extobj=extobj)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
numpy.linalg.LinAlgError: Singular matrix  
  
numpy.linalg.LinAlgError: Singular matrix  
  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
  
See log for complete Python traceback.  
  
Drag select of 1 residues  
Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 652, in <lambda>  
gw.mouseReleaseEvent = lambda e, s=self: s._dispatch_mouse_event(e,
"mouse_up")  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 550, in
_dispatch_mouse_event  
f(MouseEvent(event, modifiers=modifiers))  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 70, in mouse_up  
mouse_select(event, mode, self.session, self.view)  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 209, in mouse_select  
pick = view.picked_object(x, y)  
^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 831, in picked_object  
p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
beyond,  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 863, in picked_object_on_segment  
p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/models.py", line 143, in first_intercept  
pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 703, in first_intercept  
ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 736, in _position_intercepts  
p = d.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/ribbon.py", line 685, in first_intercept  
p = super().first_intercept(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1064, in first_intercept  
p = self._first_intercept_excluding_children(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1108, in
_first_intercept_excluding_children  
cxyz1, cxyz2 = self.positions[i].inverse() * (mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/place.py", line 201, in inverse  
self._inverse = Place(m34.invert_matrix(self._matrix))  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/matrix.py", line 141, in invert_matrix  
rinv[:, :] = matrix_inverse(r)  
^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 561, in inv  
ainv = _umath_linalg.inv(a, signature=signature, extobj=extobj)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
numpy.linalg.LinAlgError: Singular matrix  
  
numpy.linalg.LinAlgError: Singular matrix  
  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
  
See log for complete Python traceback.  
  
Drag select of 3 residues  

> select clear

> select add #7/A:498@CD

1 atom, 1 residue, 1 model selected  

> select clear

Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 652, in <lambda>  
gw.mouseReleaseEvent = lambda e, s=self: s._dispatch_mouse_event(e,
"mouse_up")  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 550, in
_dispatch_mouse_event  
f(MouseEvent(event, modifiers=modifiers))  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 70, in mouse_up  
mouse_select(event, mode, self.session, self.view)  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 209, in mouse_select  
pick = view.picked_object(x, y)  
^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 831, in picked_object  
p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
beyond,  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 863, in picked_object_on_segment  
p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/models.py", line 143, in first_intercept  
pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 703, in first_intercept  
ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 736, in _position_intercepts  
p = d.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/ribbon.py", line 685, in first_intercept  
p = super().first_intercept(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1064, in first_intercept  
p = self._first_intercept_excluding_children(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1108, in
_first_intercept_excluding_children  
cxyz1, cxyz2 = self.positions[i].inverse() * (mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/place.py", line 201, in inverse  
self._inverse = Place(m34.invert_matrix(self._matrix))  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/matrix.py", line 141, in invert_matrix  
rinv[:, :] = matrix_inverse(r)  
^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 561, in inv  
ainv = _umath_linalg.inv(a, signature=signature, extobj=extobj)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
numpy.linalg.LinAlgError: Singular matrix  
  
numpy.linalg.LinAlgError: Singular matrix  
  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
  
See log for complete Python traceback.  
  
Drag select of 1 atoms, 1 residues, 1 bonds  

> hide sel atoms

Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 652, in <lambda>  
gw.mouseReleaseEvent = lambda e, s=self: s._dispatch_mouse_event(e,
"mouse_up")  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 550, in
_dispatch_mouse_event  
f(MouseEvent(event, modifiers=modifiers))  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 70, in mouse_up  
mouse_select(event, mode, self.session, self.view)  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 209, in mouse_select  
pick = view.picked_object(x, y)  
^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 831, in picked_object  
p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
beyond,  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 863, in picked_object_on_segment  
p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/models.py", line 143, in first_intercept  
pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 703, in first_intercept  
ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 736, in _position_intercepts  
p = d.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/ribbon.py", line 685, in first_intercept  
p = super().first_intercept(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1064, in first_intercept  
p = self._first_intercept_excluding_children(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1108, in
_first_intercept_excluding_children  
cxyz1, cxyz2 = self.positions[i].inverse() * (mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/place.py", line 201, in inverse  
self._inverse = Place(m34.invert_matrix(self._matrix))  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/matrix.py", line 141, in invert_matrix  
rinv[:, :] = matrix_inverse(r)  
^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 561, in inv  
ainv = _umath_linalg.inv(a, signature=signature, extobj=extobj)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
numpy.linalg.LinAlgError: Singular matrix  
  
numpy.linalg.LinAlgError: Singular matrix  
  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
  
See log for complete Python traceback.  
  
Drag select of 11 residues, 1 bonds  

> select clear

Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 652, in <lambda>  
gw.mouseReleaseEvent = lambda e, s=self: s._dispatch_mouse_event(e,
"mouse_up")  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 550, in
_dispatch_mouse_event  
f(MouseEvent(event, modifiers=modifiers))  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 70, in mouse_up  
mouse_select(event, mode, self.session, self.view)  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 209, in mouse_select  
pick = view.picked_object(x, y)  
^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 831, in picked_object  
p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
beyond,  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 863, in picked_object_on_segment  
p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/models.py", line 143, in first_intercept  
pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 703, in first_intercept  
ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 736, in _position_intercepts  
p = d.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/ribbon.py", line 685, in first_intercept  
p = super().first_intercept(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1064, in first_intercept  
p = self._first_intercept_excluding_children(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1108, in
_first_intercept_excluding_children  
cxyz1, cxyz2 = self.positions[i].inverse() * (mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/place.py", line 201, in inverse  
self._inverse = Place(m34.invert_matrix(self._matrix))  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/matrix.py", line 141, in invert_matrix  
rinv[:, :] = matrix_inverse(r)  
^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 561, in inv  
ainv = _umath_linalg.inv(a, signature=signature, extobj=extobj)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
numpy.linalg.LinAlgError: Singular matrix  
  
numpy.linalg.LinAlgError: Singular matrix  
  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/updateloop.py", line 151, in _redraw_timer_callback  
self.session.ui.mouse_modes.mouse_pause_tracking()  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 504, in
mouse_pause_tracking  
self._mouse_pause()  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 641, in _mouse_pause  
m.pause(self._mouse_pause_position)  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 803, in pause  
p = self.view.picked_object(x, y)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 831, in picked_object  
p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
beyond,  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 863, in picked_object_on_segment  
p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/models.py", line 143, in first_intercept  
pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 703, in first_intercept  
ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 736, in _position_intercepts  
p = d.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/ribbon.py", line 685, in first_intercept  
p = super().first_intercept(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1064, in first_intercept  
p = self._first_intercept_excluding_children(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1108, in
_first_intercept_excluding_children  
cxyz1, cxyz2 = self.positions[i].inverse() * (mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/place.py", line 201, in inverse  
self._inverse = Place(m34.invert_matrix(self._matrix))  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/matrix.py", line 141, in invert_matrix  
rinv[:, :] = matrix_inverse(r)  
^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 561, in inv  
ainv = _umath_linalg.inv(a, signature=signature, extobj=extobj)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
numpy.linalg.LinAlgError: Singular matrix  
  
numpy.linalg.LinAlgError: Singular matrix  
  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/updateloop.py", line 151, in _redraw_timer_callback  
self.session.ui.mouse_modes.mouse_pause_tracking()  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 504, in
mouse_pause_tracking  
self._mouse_pause()  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 641, in _mouse_pause  
m.pause(self._mouse_pause_position)  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 803, in pause  
p = self.view.picked_object(x, y)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 831, in picked_object  
p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
beyond,  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 863, in picked_object_on_segment  
p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/models.py", line 143, in first_intercept  
pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 703, in first_intercept  
ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 736, in _position_intercepts  
p = d.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/ribbon.py", line 685, in first_intercept  
p = super().first_intercept(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1064, in first_intercept  
p = self._first_intercept_excluding_children(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1108, in
_first_intercept_excluding_children  
cxyz1, cxyz2 = self.positions[i].inverse() * (mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/place.py", line 201, in inverse  
self._inverse = Place(m34.invert_matrix(self._matrix))  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/matrix.py", line 141, in invert_matrix  
rinv[:, :] = matrix_inverse(r)  
^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 561, in inv  
ainv = _umath_linalg.inv(a, signature=signature, extobj=extobj)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
numpy.linalg.LinAlgError: Singular matrix  
  
numpy.linalg.LinAlgError: Singular matrix  
  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/updateloop.py", line 151, in _redraw_timer_callback  
self.session.ui.mouse_modes.mouse_pause_tracking()  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 504, in
mouse_pause_tracking  
self._mouse_pause()  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 641, in _mouse_pause  
m.pause(self._mouse_pause_position)  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 803, in pause  
p = self.view.picked_object(x, y)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 831, in picked_object  
p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
beyond,  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 863, in picked_object_on_segment  
p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/models.py", line 143, in first_intercept  
pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 703, in first_intercept  
ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 736, in _position_intercepts  
p = d.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/ribbon.py", line 685, in first_intercept  
p = super().first_intercept(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1064, in first_intercept  
p = self._first_intercept_excluding_children(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1108, in
_first_intercept_excluding_children  
cxyz1, cxyz2 = self.positions[i].inverse() * (mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/place.py", line 201, in inverse  
self._inverse = Place(m34.invert_matrix(self._matrix))  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/matrix.py", line 141, in invert_matrix  
rinv[:, :] = matrix_inverse(r)  
^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 561, in inv  
ainv = _umath_linalg.inv(a, signature=signature, extobj=extobj)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
numpy.linalg.LinAlgError: Singular matrix  
  
numpy.linalg.LinAlgError: Singular matrix  
  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/updateloop.py", line 151, in _redraw_timer_callback  
self.session.ui.mouse_modes.mouse_pause_tracking()  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 504, in
mouse_pause_tracking  
self._mouse_pause()  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 641, in _mouse_pause  
m.pause(self._mouse_pause_position)  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 803, in pause  
p = self.view.picked_object(x, y)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 831, in picked_object  
p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
beyond,  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 863, in picked_object_on_segment  
p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/models.py", line 143, in first_intercept  
pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 703, in first_intercept  
ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 736, in _position_intercepts  
p = d.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/ribbon.py", line 685, in first_intercept  
p = super().first_intercept(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1064, in first_intercept  
p = self._first_intercept_excluding_children(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1108, in
_first_intercept_excluding_children  
cxyz1, cxyz2 = self.positions[i].inverse() * (mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/place.py", line 201, in inverse  
self._inverse = Place(m34.invert_matrix(self._matrix))  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/matrix.py", line 141, in invert_matrix  
rinv[:, :] = matrix_inverse(r)  
^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 561, in inv  
ainv = _umath_linalg.inv(a, signature=signature, extobj=extobj)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
numpy.linalg.LinAlgError: Singular matrix  
  
numpy.linalg.LinAlgError: Singular matrix  
  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/updateloop.py", line 151, in _redraw_timer_callback  
self.session.ui.mouse_modes.mouse_pause_tracking()  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 504, in
mouse_pause_tracking  
self._mouse_pause()  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 641, in _mouse_pause  
m.pause(self._mouse_pause_position)  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 803, in pause  
p = self.view.picked_object(x, y)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 831, in picked_object  
p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
beyond,  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 863, in picked_object_on_segment  
p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/models.py", line 143, in first_intercept  
pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 703, in first_intercept  
ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 736, in _position_intercepts  
p = d.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/ribbon.py", line 685, in first_intercept  
p = super().first_intercept(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1064, in first_intercept  
p = self._first_intercept_excluding_children(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1108, in
_first_intercept_excluding_children  
cxyz1, cxyz2 = self.positions[i].inverse() * (mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/place.py", line 201, in inverse  
self._inverse = Place(m34.invert_matrix(self._matrix))  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/matrix.py", line 141, in invert_matrix  
rinv[:, :] = matrix_inverse(r)  
^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 561, in inv  
ainv = _umath_linalg.inv(a, signature=signature, extobj=extobj)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
numpy.linalg.LinAlgError: Singular matrix  
  
numpy.linalg.LinAlgError: Singular matrix  
  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/updateloop.py", line 151, in _redraw_timer_callback  
self.session.ui.mouse_modes.mouse_pause_tracking()  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 504, in
mouse_pause_tracking  
self._mouse_pause()  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 641, in _mouse_pause  
m.pause(self._mouse_pause_position)  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 803, in pause  
p = self.view.picked_object(x, y)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 831, in picked_object  
p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
beyond,  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 863, in picked_object_on_segment  
p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/models.py", line 143, in first_intercept  
pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 703, in first_intercept  
ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 736, in _position_intercepts  
p = d.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/ribbon.py", line 685, in first_intercept  
p = super().first_intercept(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1064, in first_intercept  
p = self._first_intercept_excluding_children(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1108, in
_first_intercept_excluding_children  
cxyz1, cxyz2 = self.positions[i].inverse() * (mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/place.py", line 201, in inverse  
self._inverse = Place(m34.invert_matrix(self._matrix))  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/matrix.py", line 141, in invert_matrix  
rinv[:, :] = matrix_inverse(r)  
^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 561, in inv  
ainv = _umath_linalg.inv(a, signature=signature, extobj=extobj)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
numpy.linalg.LinAlgError: Singular matrix  
  
numpy.linalg.LinAlgError: Singular matrix  
  
File
"/Applications/ChimeraX-1.7.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
  
See log for complete Python traceback.  
  
[deleted a _lot_ of these]

Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 651, in <lambda>  
gw.mouseMoveEvent = lambda e, s=self: s._dispatch_mouse_event(e, "mouse_drag")  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 550, in
_dispatch_mouse_event  
f(MouseEvent(event, modifiers=modifiers))  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 311, in mouse_drag  
self._rotate(axis, angle)  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 403, in _rotate  
self.view.rotate(saxis, angle, self.models())  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 1027, in rotate  
center = self.center_of_rotation  
^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 708, in _get_cofr  
cofr = self._compute_center_of_rotation()  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 735, in _compute_center_of_rotation  
p = self._front_center_cofr()  
^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 803, in _front_center_cofr  
cr = self._front_center_point() # Can be None  
^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 812, in _front_center_point  
p = self.picked_object(0.5 * w, 0.5 * h, max_transparent_layers = 0,
exclude=View.unpickable)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 831, in picked_object  
p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
beyond,  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 863, in picked_object_on_segment  
p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/models.py", line 143, in first_intercept  
pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 703, in first_intercept  
ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 736, in _position_intercepts  
p = d.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/ribbon.py", line 685, in first_intercept  
p = super().first_intercept(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1064, in first_intercept  
p = self._first_intercept_excluding_children(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1108, in
_first_intercept_excluding_children  
cxyz1, cxyz2 = self.positions[i].inverse() * (mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/place.py", line 201, in inverse  
self._inverse = Place(m34.invert_matrix(self._matrix))  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/matrix.py", line 141, in invert_matrix  
rinv[:, :] = matrix_inverse(r)  
^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 561, in inv  
ainv = _umath_linalg.inv(a, signature=signature, extobj=extobj)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
numpy.linalg.LinAlgError: Singular matrix  
  
numpy.linalg.LinAlgError: Singular matrix  
  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 651, in <lambda>  
gw.mouseMoveEvent = lambda e, s=self: s._dispatch_mouse_event(e, "mouse_drag")  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 550, in
_dispatch_mouse_event  
f(MouseEvent(event, modifiers=modifiers))  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 311, in mouse_drag  
self._rotate(axis, angle)  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 403, in _rotate  
self.view.rotate(saxis, angle, self.models())  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 1027, in rotate  
center = self.center_of_rotation  
^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 708, in _get_cofr  
cofr = self._compute_center_of_rotation()  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 735, in _compute_center_of_rotation  
p = self._front_center_cofr()  
^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 803, in _front_center_cofr  
cr = self._front_center_point() # Can be None  
^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 812, in _front_center_point  
p = self.picked_object(0.5 * w, 0.5 * h, max_transparent_layers = 0,
exclude=View.unpickable)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 831, in picked_object  
p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
beyond,  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 863, in picked_object_on_segment  
p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/models.py", line 143, in first_intercept  
pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 703, in first_intercept  
ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 736, in _position_intercepts  
p = d.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/ribbon.py", line 685, in first_intercept  
p = super().first_intercept(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1064, in first_intercept  
p = self._first_intercept_excluding_children(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1108, in
_first_intercept_excluding_children  
cxyz1, cxyz2 = self.positions[i].inverse() * (mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/place.py", line 201, in inverse  
self._inverse = Place(m34.invert_matrix(self._matrix))  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/matrix.py", line 141, in invert_matrix  
rinv[:, :] = matrix_inverse(r)  
^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 561, in inv  
ainv = _umath_linalg.inv(a, signature=signature, extobj=extobj)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
numpy.linalg.LinAlgError: Singular matrix  
  
numpy.linalg.LinAlgError: Singular matrix  
  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 651, in <lambda>  
gw.mouseMoveEvent = lambda e, s=self: s._dispatch_mouse_event(e, "mouse_drag")  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 550, in
_dispatch_mouse_event  
f(MouseEvent(event, modifiers=modifiers))  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 311, in mouse_drag  
self._rotate(axis, angle)  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 403, in _rotate  
self.view.rotate(saxis, angle, self.models())  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 1027, in rotate  
center = self.center_of_rotation  
^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 708, in _get_cofr  
cofr = self._compute_center_of_rotation()  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 735, in _compute_center_of_rotation  
p = self._front_center_cofr()  
^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 803, in _front_center_cofr  
cr = self._front_center_point() # Can be None  
^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 812, in _front_center_point  
p = self.picked_object(0.5 * w, 0.5 * h, max_transparent_layers = 0,
exclude=View.unpickable)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 831, in picked_object  
p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
beyond,  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 863, in picked_object_on_segment  
p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/models.py", line 143, in first_intercept  
pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 703, in first_intercept  
ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 736, in _position_intercepts  
p = d.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/ribbon.py", line 685, in first_intercept  
p = super().first_intercept(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1064, in first_intercept  
p = self._first_intercept_excluding_children(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1108, in
_first_intercept_excluding_children  
cxyz1, cxyz2 = self.positions[i].inverse() * (mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/place.py", line 201, in inverse  
self._inverse = Place(m34.invert_matrix(self._matrix))  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/matrix.py", line 141, in invert_matrix  
rinv[:, :] = matrix_inverse(r)  
^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 561, in inv  
ainv = _umath_linalg.inv(a, signature=signature, extobj=extobj)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
numpy.linalg.LinAlgError: Singular matrix  
  
numpy.linalg.LinAlgError: Singular matrix  
  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 651, in <lambda>  
gw.mouseMoveEvent = lambda e, s=self: s._dispatch_mouse_event(e, "mouse_drag")  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 550, in
_dispatch_mouse_event  
f(MouseEvent(event, modifiers=modifiers))  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 311, in mouse_drag  
self._rotate(axis, angle)  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 403, in _rotate  
self.view.rotate(saxis, angle, self.models())  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 1027, in rotate  
center = self.center_of_rotation  
^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 708, in _get_cofr  
cofr = self._compute_center_of_rotation()  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 735, in _compute_center_of_rotation  
p = self._front_center_cofr()  
^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 803, in _front_center_cofr  
cr = self._front_center_point() # Can be None  
^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 812, in _front_center_point  
p = self.picked_object(0.5 * w, 0.5 * h, max_transparent_layers = 0,
exclude=View.unpickable)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 831, in picked_object  
p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
beyond,  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 863, in picked_object_on_segment  
p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/models.py", line 143, in first_intercept  
pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 703, in first_intercept  
ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 736, in _position_intercepts  
p = d.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/ribbon.py", line 685, in first_intercept  
p = super().first_intercept(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1064, in first_intercept  
p = self._first_intercept_excluding_children(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1108, in
_first_intercept_excluding_children  
cxyz1, cxyz2 = self.positions[i].inverse() * (mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/place.py", line 201, in inverse  
self._inverse = Place(m34.invert_matrix(self._matrix))  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/matrix.py", line 141, in invert_matrix  
rinv[:, :] = matrix_inverse(r)  
^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 561, in inv  
ainv = _umath_linalg.inv(a, signature=signature, extobj=extobj)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
numpy.linalg.LinAlgError: Singular matrix  
  
numpy.linalg.LinAlgError: Singular matrix  
  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 651, in <lambda>  
gw.mouseMoveEvent = lambda e, s=self: s._dispatch_mouse_event(e, "mouse_drag")  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 550, in
_dispatch_mouse_event  
f(MouseEvent(event, modifiers=modifiers))  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 311, in mouse_drag  
self._rotate(axis, angle)  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 403, in _rotate  
self.view.rotate(saxis, angle, self.models())  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 1027, in rotate  
center = self.center_of_rotation  
^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 708, in _get_cofr  
cofr = self._compute_center_of_rotation()  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 735, in _compute_center_of_rotation  
p = self._front_center_cofr()  
^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 803, in _front_center_cofr  
cr = self._front_center_point() # Can be None  
^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 812, in _front_center_point  
p = self.picked_object(0.5 * w, 0.5 * h, max_transparent_layers = 0,
exclude=View.unpickable)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 831, in picked_object  
p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
beyond,  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 863, in picked_object_on_segment  
p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/models.py", line 143, in first_intercept  
pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 703, in first_intercept  
ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 736, in _position_intercepts  
p = d.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/ribbon.py", line 685, in first_intercept  
p = super().first_intercept(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1064, in first_intercept  
p = self._first_intercept_excluding_children(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1108, in
_first_intercept_excluding_children  
cxyz1, cxyz2 = self.positions[i].inverse() * (mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/place.py", line 201, in inverse  
self._inverse = Place(m34.invert_matrix(self._matrix))  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/matrix.py", line 141, in invert_matrix  
rinv[:, :] = matrix_inverse(r)  
^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 561, in inv  
ainv = _umath_linalg.inv(a, signature=signature, extobj=extobj)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
numpy.linalg.LinAlgError: Singular matrix  
  
numpy.linalg.LinAlgError: Singular matrix  
  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 651, in <lambda>  
gw.mouseMoveEvent = lambda e, s=self: s._dispatch_mouse_event(e, "mouse_drag")  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/mousemodes.py", line 550, in
_dispatch_mouse_event  
f(MouseEvent(event, modifiers=modifiers))  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 311, in mouse_drag  
self._rotate(axis, angle)  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/mouse_modes/std_modes.py", line 403, in _rotate  
self.view.rotate(saxis, angle, self.models())  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 1027, in rotate  
center = self.center_of_rotation  
^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 708, in _get_cofr  
cofr = self._compute_center_of_rotation()  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 735, in _compute_center_of_rotation  
p = self._front_center_cofr()  
^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 803, in _front_center_cofr  
cr = self._front_center_point() # Can be None  
^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 812, in _front_center_point  
p = self.picked_object(0.5 * w, 0.5 * h, max_transparent_layers = 0,
exclude=View.unpickable)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 831, in picked_object  
p = self.picked_object_on_segment(xyz1, xyz2, exclude = exclude, beyond =
beyond,  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/view.py", line 863, in picked_object_on_segment  
p = self.drawing.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/models.py", line 143, in first_intercept  
pick = super().first_intercept(mxyz1, mxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 703, in first_intercept  
ppicks = self._position_intercepts(self.positions[pn], mxyz1, mxyz2, exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/structure.py", line 736, in _position_intercepts  
p = d.first_intercept(xyz1, xyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/atomic/ribbon.py", line 685, in first_intercept  
p = super().first_intercept(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1069, in first_intercept  
p = self.first_intercept_children(self.child_drawings(), mxyz1, mxyz2,
exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1086, in first_intercept_children  
p = d.first_intercept(cxyz1, cxyz2, exclude=exclude)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1064, in first_intercept  
p = self._first_intercept_excluding_children(mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/drawing.py", line 1108, in
_first_intercept_excluding_children  
cxyz1, cxyz2 = self.positions[i].inverse() * (mxyz1, mxyz2)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/place.py", line 201, in inverse  
self._inverse = Place(m34.invert_matrix(self._matrix))  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/geometry/matrix.py", line 141, in invert_matrix  
rinv[:, :] = matrix_inverse(r)  
^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 561, in inv  
ainv = _umath_linalg.inv(a, signature=signature, extobj=extobj)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
numpy.linalg.LinAlgError: Singular matrix  
  
numpy.linalg.LinAlgError: Singular matrix  
  
File
"/Applications/ChimeraX-1.7.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/numpy/linalg/linalg.py", line 112, in _raise_linalgerror_singular  
raise LinAlgError("Singular matrix")  
  
See log for complete Python traceback.  
  




OpenGL version: 4.1 Metal - 88
OpenGL renderer: Apple M1
OpenGL vendor: Apple

Python: 3.11.2
Locale: UTF-8
Qt version: PyQt6 6.3.1, Qt 6.3.1
Qt runtime version: 6.3.2
Qt platform: cocoa
Hardware:

    Hardware Overview:

      Model Name: MacBook Pro
      Model Identifier: MacBookPro17,1
      Model Number: MYDA2FN/A
      Chip: Apple M1
      Total Number of Cores: 8 (4 performance and 4 efficiency)
      Memory: 8 GB
      System Firmware Version: 10151.81.1
      OS Loader Version: 10151.81.1

Software:

    System Software Overview:

      System Version: macOS 14.3.1 (23D60)
      Kernel Version: Darwin 23.3.0
      Time since boot: 12 jours, 17 heures et 54 minutes

Graphics/Displays:

    Apple M1:

      Chipset Model: Apple M1
      Type: GPU
      Bus: Built-In
      Total Number of Cores: 8
      Vendor: Apple (0x106b)
      Metal Support: Metal 3
      Displays:
        24P1X:
          Resolution: 1920 x 1200 (WUXGA - Widescreen Ultra eXtended Graphics Array)
          UI Looks like: 1920 x 1200 @ 60.00Hz
          Main Display: Yes
          Mirror: Off
          Online: Yes
          Rotation: Supported


Installed Packages:
    alabaster: 0.7.16
    appdirs: 1.4.4
    appnope: 0.1.3
    asttokens: 2.4.1
    Babel: 2.14.0
    backcall: 0.2.0
    beautifulsoup4: 4.11.2
    blockdiag: 3.0.0
    blosc2: 2.0.0
    build: 0.10.0
    certifi: 2022.12.7
    cftime: 1.6.3
    charset-normalizer: 3.3.2
    ChimeraX-AddCharge: 1.5.13
    ChimeraX-AddH: 2.2.5
    ChimeraX-AlignmentAlgorithms: 2.0.1
    ChimeraX-AlignmentHdrs: 3.4.1
    ChimeraX-AlignmentMatrices: 2.1
    ChimeraX-Alignments: 2.12.2
    ChimeraX-AlphaFold: 1.0
    ChimeraX-AltlocExplorer: 1.1.1
    ChimeraX-AmberInfo: 1.0
    ChimeraX-Arrays: 1.1
    ChimeraX-Atomic: 1.49.1
    ChimeraX-AtomicLibrary: 12.1.5
    ChimeraX-AtomSearch: 2.0.1
    ChimeraX-AxesPlanes: 2.3.2
    ChimeraX-BasicActions: 1.1.2
    ChimeraX-BILD: 1.0
    ChimeraX-BlastProtein: 2.1.2
    ChimeraX-BondRot: 2.0.4
    ChimeraX-BugReporter: 1.0.1
    ChimeraX-BuildStructure: 2.10.5
    ChimeraX-Bumps: 1.0
    ChimeraX-BundleBuilder: 1.2.2
    ChimeraX-ButtonPanel: 1.0.1
    ChimeraX-CageBuilder: 1.0.1
    ChimeraX-CellPack: 1.0
    ChimeraX-Centroids: 1.3.2
    ChimeraX-ChangeChains: 1.1
    ChimeraX-CheckWaters: 1.3.2
    ChimeraX-ChemGroup: 2.0.1
    ChimeraX-Clashes: 2.2.4
    ChimeraX-Clipper: 0.22.4
    ChimeraX-ColorActions: 1.0.3
    ChimeraX-ColorGlobe: 1.0
    ChimeraX-ColorKey: 1.5.5
    ChimeraX-CommandLine: 1.2.5
    ChimeraX-ConnectStructure: 2.0.1
    ChimeraX-Contacts: 1.0.1
    ChimeraX-Core: 1.7.1
    ChimeraX-CoreFormats: 1.2
    ChimeraX-coulombic: 1.4.2
    ChimeraX-Crosslinks: 1.0
    ChimeraX-Crystal: 1.0
    ChimeraX-CrystalContacts: 1.0.1
    ChimeraX-DataFormats: 1.2.3
    ChimeraX-Dicom: 1.2
    ChimeraX-DistMonitor: 1.4
    ChimeraX-DockPrep: 1.1.3
    ChimeraX-Dssp: 2.0
    ChimeraX-EMDB-SFF: 1.0
    ChimeraX-ESMFold: 1.0
    ChimeraX-FileHistory: 1.0.1
    ChimeraX-FunctionKey: 1.0.1
    ChimeraX-Geometry: 1.3
    ChimeraX-gltf: 1.0
    ChimeraX-Graphics: 1.1.1
    ChimeraX-Hbonds: 2.4
    ChimeraX-Help: 1.2.2
    ChimeraX-HKCage: 1.3
    ChimeraX-IHM: 1.1
    ChimeraX-ImageFormats: 1.2
    ChimeraX-IMOD: 1.0
    ChimeraX-IO: 1.0.1
    ChimeraX-ItemsInspection: 1.0.1
    ChimeraX-IUPAC: 1.0
    ChimeraX-Label: 1.1.8
    ChimeraX-ListInfo: 1.2.2
    ChimeraX-Log: 1.1.6
    ChimeraX-LookingGlass: 1.1
    ChimeraX-Maestro: 1.9.1
    ChimeraX-Map: 1.1.4
    ChimeraX-MapData: 2.0
    ChimeraX-MapEraser: 1.0.1
    ChimeraX-MapFilter: 2.0.1
    ChimeraX-MapFit: 2.0
    ChimeraX-MapSeries: 2.1.1
    ChimeraX-Markers: 1.0.1
    ChimeraX-Mask: 1.0.2
    ChimeraX-MatchMaker: 2.1.2
    ChimeraX-MCopy: 1.0
    ChimeraX-MDcrds: 2.6.1
    ChimeraX-MedicalToolbar: 1.0.2
    ChimeraX-Meeting: 1.0.1
    ChimeraX-MLP: 1.1.1
    ChimeraX-mmCIF: 2.12.1
    ChimeraX-MMTF: 2.2
    ChimeraX-Modeller: 1.5.14
    ChimeraX-ModelPanel: 1.4
    ChimeraX-ModelSeries: 1.0.1
    ChimeraX-Mol2: 2.0.3
    ChimeraX-Mole: 1.0
    ChimeraX-Morph: 1.0.2
    ChimeraX-MouseModes: 1.2
    ChimeraX-Movie: 1.0
    ChimeraX-Neuron: 1.0
    ChimeraX-Nifti: 1.1
    ChimeraX-NRRD: 1.1
    ChimeraX-Nucleotides: 2.0.3
    ChimeraX-OpenCommand: 1.13.1
    ChimeraX-PDB: 2.7.3
    ChimeraX-PDBBio: 1.0.1
    ChimeraX-PDBLibrary: 1.0.4
    ChimeraX-PDBMatrices: 1.0
    ChimeraX-PickBlobs: 1.0.1
    ChimeraX-Positions: 1.0
    ChimeraX-PresetMgr: 1.1
    ChimeraX-PubChem: 2.1
    ChimeraX-ReadPbonds: 1.0.1
    ChimeraX-Registration: 1.1.2
    ChimeraX-RemoteControl: 1.0
    ChimeraX-RenderByAttr: 1.1
    ChimeraX-RenumberResidues: 1.1
    ChimeraX-ResidueFit: 1.0.1
    ChimeraX-RestServer: 1.2
    ChimeraX-RNALayout: 1.0
    ChimeraX-RotamerLibMgr: 4.0
    ChimeraX-RotamerLibsDunbrack: 2.0
    ChimeraX-RotamerLibsDynameomics: 2.0
    ChimeraX-RotamerLibsRichardson: 2.0
    ChimeraX-SaveCommand: 1.5.1
    ChimeraX-SchemeMgr: 1.0
    ChimeraX-SDF: 2.0.2
    ChimeraX-Segger: 1.0
    ChimeraX-Segment: 1.0.1
    ChimeraX-SelInspector: 1.0
    ChimeraX-SeqView: 2.11
    ChimeraX-Shape: 1.0.1
    ChimeraX-Shell: 1.0.1
    ChimeraX-Shortcuts: 1.1.1
    ChimeraX-ShowSequences: 1.0.2
    ChimeraX-SideView: 1.0.1
    ChimeraX-Smiles: 2.1.2
    ChimeraX-SmoothLines: 1.0
    ChimeraX-SpaceNavigator: 1.0
    ChimeraX-StdCommands: 1.12.4
    ChimeraX-STL: 1.0.1
    ChimeraX-Storm: 1.0
    ChimeraX-StructMeasure: 1.1.2
    ChimeraX-Struts: 1.0.1
    ChimeraX-Surface: 1.0.1
    ChimeraX-SwapAA: 2.0.1
    ChimeraX-SwapRes: 2.2.2
    ChimeraX-TapeMeasure: 1.0
    ChimeraX-TaskManager: 1.0
    ChimeraX-Test: 1.0
    ChimeraX-Toolbar: 1.1.2
    ChimeraX-ToolshedUtils: 1.2.4
    ChimeraX-Topography: 1.0
    ChimeraX-ToQuest: 1.0
    ChimeraX-Tug: 1.0.1
    ChimeraX-UI: 1.33.3
    ChimeraX-uniprot: 2.3
    ChimeraX-UnitCell: 1.0.1
    ChimeraX-ViewDockX: 1.3.2
    ChimeraX-VIPERdb: 1.0
    ChimeraX-Vive: 1.1
    ChimeraX-VolumeMenu: 1.0.1
    ChimeraX-vrml: 1.0
    ChimeraX-VTK: 1.0
    ChimeraX-WavefrontOBJ: 1.0
    ChimeraX-WebCam: 1.0.2
    ChimeraX-WebServices: 1.1.3
    ChimeraX-Zone: 1.0.1
    colorama: 0.4.6
    comm: 0.2.1
    contourpy: 1.2.0
    cxservices: 1.2.2
    cycler: 0.12.1
    Cython: 0.29.33
    debugpy: 1.8.0
    decorator: 5.1.1
    docutils: 0.19
    executing: 2.0.1
    filelock: 3.9.0
    fonttools: 4.47.2
    funcparserlib: 2.0.0a0
    glfw: 2.6.4
    grako: 3.16.5
    h5py: 3.10.0
    html2text: 2020.1.16
    idna: 3.6
    ihm: 0.38
    imagecodecs: 2023.9.18
    imagesize: 1.4.1
    ipykernel: 6.23.2
    ipython: 8.14.0
    ipython-genutils: 0.2.0
    ipywidgets: 8.1.1
    jedi: 0.18.2
    Jinja2: 3.1.2
    jupyter-client: 8.2.0
    jupyter-core: 5.7.1
    jupyterlab-widgets: 3.0.9
    kiwisolver: 1.4.5
    line-profiler: 4.0.2
    lxml: 4.9.2
    lz4: 4.3.2
    MarkupSafe: 2.1.4
    matplotlib: 3.7.2
    matplotlib-inline: 0.1.6
    msgpack: 1.0.4
    nest-asyncio: 1.6.0
    netCDF4: 1.6.2
    networkx: 3.1
    nibabel: 5.0.1
    nptyping: 2.5.0
    numexpr: 2.8.8
    numpy: 1.25.1
    openvr: 1.23.701
    packaging: 21.3
    ParmEd: 3.4.3
    parso: 0.8.3
    pep517: 0.13.0
    pexpect: 4.9.0
    pickleshare: 0.7.5
    pillow: 10.2.0
    pip: 23.0
    pkginfo: 1.9.6
    platformdirs: 4.1.0
    prompt-toolkit: 3.0.43
    psutil: 5.9.5
    ptyprocess: 0.7.0
    pure-eval: 0.2.2
    py-cpuinfo: 9.0.0
    pycollada: 0.7.2
    pydicom: 2.3.0
    Pygments: 2.16.1
    pynrrd: 1.0.0
    PyOpenGL: 3.1.7
    PyOpenGL-accelerate: 3.1.7
    pyopenxr: 1.0.2801
    pyparsing: 3.0.9
    pyproject-hooks: 1.0.0
    PyQt6-commercial: 6.3.1
    PyQt6-Qt6: 6.3.2
    PyQt6-sip: 13.4.0
    PyQt6-WebEngine-commercial: 6.3.1
    PyQt6-WebEngine-Qt6: 6.3.2
    python-dateutil: 2.8.2
    pytz: 2023.3.post1
    pyzmq: 25.1.2
    qtconsole: 5.4.3
    QtPy: 2.4.1
    RandomWords: 0.4.0
    requests: 2.31.0
    scipy: 1.11.1
    setuptools: 67.4.0
    setuptools-scm: 7.0.5
    sfftk-rw: 0.7.3
    six: 1.16.0
    snowballstemmer: 2.2.0
    sortedcontainers: 2.4.0
    soupsieve: 2.5
    sphinx: 6.1.3
    sphinx-autodoc-typehints: 1.22
    sphinxcontrib-applehelp: 1.0.8
    sphinxcontrib-blockdiag: 3.0.0
    sphinxcontrib-devhelp: 1.0.6
    sphinxcontrib-htmlhelp: 2.0.5
    sphinxcontrib-jsmath: 1.0.1
    sphinxcontrib-qthelp: 1.0.7
    sphinxcontrib-serializinghtml: 1.1.10
    stack-data: 0.6.3
    superqt: 0.5.0
    tables: 3.8.0
    tcia-utils: 1.5.1
    tifffile: 2023.7.18
    tinyarray: 1.2.4
    tomli: 2.0.1
    tornado: 6.4
    traitlets: 5.9.0
    typing-extensions: 4.9.0
    tzdata: 2023.4
    urllib3: 2.1.0
    wcwidth: 0.2.13
    webcolors: 1.12
    wheel: 0.38.4
    wheel-filename: 1.4.1
    widgetsnbextension: 4.0.9

Change History (2)

comment:1 by pett, 20 months ago

Component: UnassignedGraphics
Description: modified (diff)
Owner: set to Tom Goddard
Platform: all
Project: ChimeraX
Status: newassigned
Summary: ChimeraX bug report submissionPicking code: Singular matrix

comment:2 by Tom Goddard, 20 months ago

Resolution: can't reproduce
Status: assignedclosed

User was trying to select with the mouse and some model has a singular position matrix. I did not see any commands suggesting how they got that singular position matrix. They had 7 PDB files opened from a session and had used matchmaker to align them, and the output from those alignments (320 atoms paired) looks fine.

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