[gmx-users] Problem with Amber99SB-ILDN ff

Melchor S. msmqbm at cid.csic.es
Mon Jul 8 12:36:58 CEST 2013

I am trying to create the gromacs topology and gro file, using pdb2gmx, with
the Amber99SB-ILDN ff. The problem is that  my protein has two chains, but
the second one, is a one residue chain, that contains a GLU. 

When I try it I obtain:

Fatal error:
In the chosen force field there is no residue type for 'GLU' as a starting
For more information and tips for troubleshooting, please check the GROMACS
website at http://www.gromacs.org/Documentation/Errors

Some of you knows how to solve it?

Thanks in advance

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