Dear justin lemkul,, Thanks alot..i like the way u answer my stupid questions..actually i dont have anyone to guide me except u.thats why i ask even stupid questions.dont mind please.i want to work under your supervision because i have passion for simulation on gromacs. Now coming to the point,,my problem was concerned with his residue of atom HD1.I just went to pdb file and rename that HD1 to H3.then two files formed that are " "posre _protein chain_A.itp and topol_protein_chain _A.itp"" .while topol.top remained empty.now it gives me another error that is " " Residue 'IS A' not found in residue topology database"". im using version 5.1.2 actually. i 'll encourage and wellcome even live discussion with you.I studied your papers on simulation. Regards. GOD bless you. Maria khan -- Gromacs Users mailing list
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