Hi,
Would you please let me know how can I make an index file of COM of lipid membrane? I guess the position of the COM of the bilayer, but how it is possible to make an index file of this point? I want to include this index file as the ref_group in Umbrella Sampling. Sincerely, Shima -- 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/Support/Mailing_Lists/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/Support/Mailing_Lists