[chimerax-users] ChimeraX change chain IDs tool not available

[Rish, Anthony]

Hello,

I created a protein model with 9 separate chains and fit it to my experimental cryo-EM map. However, once I saved the new model, relative to the map, the chains were renamed to 1.1/A, 1.2/A… 1.9/A. This is no good since all chains now are labeled as A in the PDB file and programs like PyMol can’t tell the difference between the chains.

I checked the ChimeraX user guide and there is supposed to be a tool for this exact problem called change chain IDs under the Tools->Structure Editing tabs, using the command changechains, but the tool is nowhere to be found. I’m running the current build of ChimeraX as of 8/2/22.

How can I change the chain IDs of my model?

Thanks,
Anthony
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