[gmx-users] Can I use gromos43a1p-4.5.1.tar.gz in gromacs5.0?

[Batdorj Batsaikhan]

Dear Gmx users,
I want to simulate a protein which has phosphorelated residues. 
Can I use gromos43a1p-4.5.1.tar.gz in gromacs5.0 or 4.6?

I have got following error:
Program pdb2gmx, VERSION 4.6.5
Source code file: /build/buildd/gromacs-4.6.5/src/kernel/pgutil.c, line: 126

Fatal error:
Residue 2000697817 named THR of a molecule in the input file was mapped
to an entry in the topology database, but the atom N used in
an interaction of type improper in that entry is not found in the
input file. Perhaps your atom and/or residue naming needs to be
fixed.

For more information and tips for troubleshooting, please check the GROMACS
website at http://www.gromacs.org/Documentation/Errors

Best regards,
Batsaikhan