From: Goedde, Chris (
Date: Tue Sep 12 2017 - 15:46:09 CDT

Hi all,

Is there documentation that specifies which columns in a pdb file are interpreted as the “segname” field by vmd? It seems to be columns 73-75 in the pdb files that I’ve seen, but I wanted to make sure that’s correct. (As far as I can see it’s not part of the official pdb spec at

Sorry if this is answered in some obvious place, but I don’t see it in the molfile plugin documentation that I’ve looked at.

BTW, the link to the pdb format that’s in the first line of the documentation at

gives a 404.


Chris Goedde