Hi, Those are for acetyl and N-methylamine chemical moieties. Those are often used to cap peptide fragments to avoid zwitterions (both in simulation and experiment).
Mark On Sat, Jan 31, 2015 at 9:24 PM, shahab shariati <shahab.shari...@gmail.com> wrote: > Dear all > > I am a beginner in gromacs. I am studying manual and force fields. > > I have a question about 2 residue name in aminoacid.rtp file in force > fields (for example, amber03). > > I want to know ACE and NME residues. > > Any help will highly appreciated. > -- > Gromacs Users mailing list > > * Please search the archive at > http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before > posting! > > * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists > > * For (un)subscribe requests visit > https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or > send a mail to gmx-users-requ...@gromacs.org. > -- Gromacs Users mailing list * Please search the archive at http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before posting! * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists * For (un)subscribe requests visit https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or send a mail to gmx-users-requ...@gromacs.org.
