Hi Hernando, This is possible, but the only (non-Python) way I can think of to do it is kind of a pain. You would use the Attribute Calculator (Tools->Structure Analysis) to define a residue attribute named ‘saveHelix’ using the formula ‘residue.isHelix’ and then the same with ‘saveStrand’ and ‘residue.isStrand’. After the secondary assignments were later changed, you could revert to the originals by again using the Attribute Calculator, but by defining isHelix/isStrand with the formula residue.saveHelix/saveStrand. Ugly. Also, the saveHelix/Strand won’t be remembered in sessions unless you get tonight’s daily build. —Eric Eric Pettersen UCSF Computer Graphics Lab
On Jan 30, 2018, at 12:38 PM, Hernando J Sosa <hernando.sosa@einstein.yu.edu> wrote:
Dear UCSF-Chimera,
I have several structures with their own defined secondary structures (SS) that are slightly different from the Chimera default assignments. I want to display them with their own assignment, not the chimera default so I am using the command mm with the option computeSS false which works as intended. But my question is: if at any point an alignment were done without using this option, is it possible to go back to display each structure with their own SS assignment? I have tried but it seems that I can't go back. Or a related question, is it possible to switch back and forth between structure-defined (when available) or Chimera-default SS assignments ?
Thank you,
Best
H.
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