hi everyone,

I work on the modeling of the effect of phosphorylation on segment peptide.

I had a problem when i use this interface MMTK/Chimera interface because when i use a doubly phosphorylated peptide i have this message:

KeyError: 'No parameters for bond Atom 0.ARG_12__0_0_1_286__B.peptide.C (atom type C) - Atom 0.TPO_13__0_0_1_287__B.N (atom type n)'

You will find attached a sample problem source file.

Is there anyone who can help me solve this problem please.

Codially