Provided by: gromacs-data_2019.3-2_all
gmx-saltbr - Compute salt bridges
gmx saltbr [-f [<.xtc/.trr/...>]] [-s [<.tpr>]] [-b <time>] [-e <time>] [-dt <time>] [-t <real>] [-[no]sep]
gmx saltbr plots the distance between all combination of charged groups as a function of time. The groups are combined in different ways. A minimum distance can be given (i.e. a cut-off), such that groups that are never closer than that distance will not be plotted. Output will be in a number of fixed filenames, min-min.xvg, plus-min.xvg and plus-plus.xvg, or files for every individual ion pair if the -sep option is selected. In this case, files are named as sb-(Resname)(Resnr)-(Atomnr). There may be many such files.
Options to specify input files: -f [<.xtc/.trr/…>] (traj.xtc) Trajectory: xtc trr cpt gro g96 pdb tng -s [<.tpr>] (topol.tpr) Portable xdr run input file Other options: -b <time> (0) Time of first frame to read from trajectory (default unit ps) -e <time> (0) Time of last frame to read from trajectory (default unit ps) -dt <time> (0) Only use frame when t MOD dt = first time (default unit ps) -t <real> (1000) Groups that are never closer than this distance are not plotted -[no]sep (no) Use separate files for each interaction (may be MANY)
gmx(1) More information about GROMACS is available at <http://www.gromacs.org/>.
2019, GROMACS development team