Thanks Yanzi,Thanks Mark, for your very usefull points, I have another pdb2gmx running on thr protein.pdb with ffgmx force filed(matching with lipid.itp). Also I have removed the including ffG43a1 from the lipid.itp and then running grompp. The new errors are:
ERROR 1 [file "popc.itp", line 3]: Incorrect number of atomtypes for dihedral (1 instead of 2 or 4) Fatal error: Bonded/nonbonded atom type '1' not found! I have read the chapter 5 of the manual but I dont have any idea about these errors. Could you please tell me what are these errors and what should I do to pass this step? Thank you very much in advance, Best regards, Behnoush Zare, Iran University of Medical Sciences, Department of Pharmacology, Tehran, Iran. _______________________________________________ gmx-users mailing list [email protected] http://www.gromacs.org/mailman/listinfo/gmx-users Please search the archive at http://www.gromacs.org/search before posting! Please don't post (un)subscribe requests to the list. Use the www interface or send it to [EMAIL PROTECTED] Can't post? Read http://www.gromacs.org/mailing_lists/users.php

