Dear justin thank you for your reply i used the following parameter in my mdp file
cutoff-scheme = Group rlist = 0.9 coulombtype = PME rcoulomb = 0.9 rvdw = 1.4 rvdw = 1.4 When i do g_energy analysis to find out LJ-SR nad Lj-SR between CYCLIPEPTIDE1 and CNT it shows the negative value -311.9 and -2.45122 J-SR:CYCLIPEPTIDE1-CNT -311.9 1.5 18.6465 -5.28722 (kJ/mol) LJ-LR:CYCLIPEPTIDE1-CNT -2.45122 0.019 0.265088 0.0560281 (kJ/mol) LJ-SR:CYCLIPEPTIDE2-CNT -312.105 3 19.4763 -5.26101 (kJ/mol)LJ-LR:CYCLIPEPTIDE2-CNT -2.69093 0.0077 0.0788448 -0.045267 (kJ/mol)LJ-SR:CYCLIPEPTIDE3-CNT -322.101 0.98 18.1122 7.01285 (kJ/mol) LJ-LR:CYCLIPEPTIDE3-CNT -2.41642 0.023 0.236337 0.0742594 (kJ/mol) can i take LJ-LR parameter for analysing and discussion the problem ? . Because My g_ dist analysis shows the Distance between selected groups is is greater than 3.7 nm This value is less than 0.9 & 1.4 ( as described in Mdp file) -- 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.