<P>
<BR>
Hi ,<BR>
I am trying to run gromacs on a protein having ATP.I started simulation with a command "pdb2gmx" and it is giving following error<BR>
<BR>
Fatal error: Atom PG in residue ATP 250 not found in rtp database<BR>
while sorting atoms <BR>
<BR>
Please suggest me how to overcome this. <BR>
<BR>
<BR>
<BR>
Thank you<BR>
<BR>
Prasad reddy <BR>
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