[gmx-users] how to add topology for a new residue

[Mr.Sridhar]

I have a problem in running MD of a protein which has
PHORBOL-13-ACETATE as a bound ligand. I got a gromacs topology file from
PRODRG server. But I don't know how to include this topology file in Gromacs
and run MD.
I've added the line #include "PRB.itp"
in the main gromacs forcefield file "ffgmx.itp" but it is not working.

I'll be happy if anybody can find the procedure for this.

Thanks.

sridhar.