[Chimera-users] Change chain id of blank chain

Tom Goddard goddard at sonic.net
Tue Oct 20 14:41:44 PDT 2015

Hi Joshua,

  Eric looked at the code and said the changechains command can’t change the blank chain id because it won’t accept a quoted space character as the chain letter.  It could be done with Python code, or as you mention you can do it with the change chain ids gui.


> On Oct 20, 2015, at 2:07 PM, Broyde, Joshua E. <wrote:
> Dear Tom,
> Hope you are well. I am having an issue with redefining the chains in a pdb open in Chimera. If a model has two chains (A and B) then it is easy to reassign the chain ids using:
> changechains A,B B,A
> However, if one of the chains does not have a chain id already, (what Chimera calls, the "principle chain"), how do I assign a chain id? This is easy to do in the GUI, but I cannot find a command for doing so.
> Sincerely,
> Joshua Broyde

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