Hello, I am sorry for this stupid question.
Lets say I have an index file of all chain A atoms. I want to calculate RMS of chain A _backbone_ only. I run g_rms. It asks two questions: 1/ Select group for least squares fit 2/ Select group for RMSD calculation To the best of my understanding, I should answer "BACKBONE" to the first question and enter group number corresponding to chain A index file to the second one. Is that correct? Thank you. SDA _______________________________________________ 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

