mmCIF reader does not assign secondary structure to ensemble models

[Tom Goddard]

Opening 5ijn is extremely slow because we compute secondary structure for 7 of the 8 copies in this large assembly.
Apparently the mmcif reader is not copying secondary structure information to all members of the ensemble.

open 5ijn
Model 2.2 (5ijn) has no secondary structure assignments. Running dssp using default settings.
Model 2.3 (5ijn) has no secondary structure assignments. Running dssp using default settings.
Model 2.4 (5ijn) has no secondary structure assignments. Running dssp using default settings.
Model 2.5 (5ijn) has no secondary structure assignments. Running dssp using default settings.
Model 2.6 (5ijn) has no secondary structure assignments. Running dssp using default settings.
Model 2.7 (5ijn) has no secondary structure assignments. Running dssp using default settings.
Model 2.8 (5ijn) has no secondary structure assignments. Running dssp using default settings.
Opened mmCIF data containing 594304 atoms and 593312 bonds

[Greg Couch]

Duplicate of #213

[pett]

reducing # of categories, so lumping into I/O category