Thanks for your reply Justin. I am trying to generate a topology dor a dna structure using the charmm dna.rtp
I have renamed the residue name to DA , DG etc. I have also set DA5 and DC3 for the 5' and 3' ends I got this error Fatal error: atom N not found in buiding block 2DG while combining tdb and rtp For more information and tips for troubleshooting, please check the GROMACS website at http://www.gromacs.org/Documentation/Errors I quess I need to change something in the .rtp and/or the .tdb files. But what? Thanks a lot George-- gmx-users mailing list gmx-users@gromacs.org http://lists.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 gmx-users-requ...@gromacs.org. Can't post? Read http://www.gromacs.org/mailing_lists/users.php
