[Chimera-users] when will NoResidueRotamersError be raised?

[Elaine Meng]

Hi XBL,
Maybe the confusing part is the word "model."  In Chimera, we just use that word to mean a structure with atomic coordinates, which could be from experiments (crystallography, NMR, etc. such as entries in the Protein Data Bank) or calculations (protein structure prediction, etc.). Essentially each structure file you open becomes one model:
<http://hmg.oxfordjournals.org/content/23/4/949.long>

I was guessing that your two structures are "models" from the Chimera point of view.  If not, and I still didn't answer your question, feel free to write back.
I hope this helps,
Elaine

On Feb 12, 2014, at 3:50 PM, Elaine Meng wrote:

> On Feb 12, 2014, at 10:45 AM, Xiao-Bo Li wrote:
> 
>> Hi Elaine,
>> If I have two different protein structure open (not models), how can I reference one of them using the commandline?  I want to mutate one of them not the other.
>> Best,
>> XBL
> 
> Hi XBL,
> The command-line specifications of different models are #0, #1, etc. You can see in the Model Panel (in Favorites menu) which number goes with which structure.  Also, there may be different chains even in one structure.  For example, residue 15 in chain A of model 0 is specified with:
> 
> #0:15.A
> 
> Please see the atom-specification documentation for more details and several examples.
> <http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/midas/frameatom_spec.html>
> 
> That page is also linked to "atom-spec" in the Usage line of the "swapaa" command description.
> <http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/midas/swapaa.html>
> 
> You might also want to take a look at the "getting started - command line" tutorial.
> <http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/tutorials/getting_started.html>
> 
> Elaine