[modeller_usage] Re: Missing Residues at the Start, As Well As in the Middle, of the Sequence of a Chain

On 5/28/24 11:48 PM, Siddhartha Barua via modeller_usage wrote: > *KeyError: 'No such residue: 431:B'*

Residues in the model are by default numbered starting at 1 and the chains labeled alphabetically starting at A. Since you only have a single chain, it will be labeled A, not B. See https://salilab.org/modeller/10.5/manual/node23.html If you want to number the residues differently, see https://salilab.org/modeller/10.5/manual/node30.html

It looks like you are mistakenly using the template residue numbering here.

Ben Webb, Modeller Caretaker