Hi Mike,

  Does the FE1 name come from a PDB or Mol2 file you opened?  If that name appears in the file, one obvious approach is to change the file replacing FE1 with Fe1.  I'm not sure if that will break code that expects FE1.  I don't think there are any options in Chimera to manipulate the case of names displayed in labels.  I believe Chimera just uses the capitalization of names it obtains from the file it read in.

  I guess Chimera could have some option to manipulate the case of atom names in labels.  But it seems very specialized.  Someone looking at a protein with a C-alpha atom named CA generally does not want Ca.  This also indicates that it isn't possible to know if an atom name refers to an atomic element (e.g. Fe = iron, Ca = calcium) or something else (like C-alpha).

    Tom

How do I make the default label for metal atoms be upper and lower case?

For instance in an iron compound, if I issue label ~H from the command line the result will be FE1 where I prefer Fe1, etc., etc.

This is true for all two letter atom names.

Thanks
Cheers,
Mike

<<< ------------------------------------------------------------------------>>>
Dr. Michael W. Day
Director - X-ray Crystallography Lab & Molecular Observatory
California Institute of Technology
Mail Code 139-74
Pasadena, CA 91125

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