Hi All
I have been trying to set up a system for GPCR-Ligand simulation in
Membrane-Aqueous environment.
Without the non-standard residue (Antagonist), I have been able to
successfully setup the system including: Protein, Membrane (POPC generated
by VMD), Water, and Ions using VMD scripts and the CHARMM topology file
top_all27_protein_lipid.inp present in VMD.
Now following is my problem:
1. I want to do the MD simulation using AMBER 8/9. I am planning to use
the GAFF parameters for the Ligand, Lipids, Waters, and Ions; and FF99/FF03
for the Protein part. My question is: If I prepare a PDB (and a
corresponding PSF) of the entire system using VMD which uses CHARMM topology
file top_all27_protein_lipid.inp. Would I then be able to use this PDB file
to create corresponding INPCRD and PRMTOP files for simulation applying GAFF
and FF09/FF03 parameters in LEAP module in AMBER?
Thanks a lot.
Akshay Patny
Graduate Research Assistant
Faser Hall 417, Department of Medicinal Chemistry
Research Institute of Pharmaceutical Sciences
University of Mississippi
University, MS 38677
E-mail: akshay17.olemiss.edu
Tel: 662-915-1286 (office); Web: www.olemiss.edu
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Received on Sun Sep 24 2006 - 06:07:05 PDT
