g_saltbr(1)

g_saltbr1

Compute salt bridges

Part of gmx-saltbr(1).

Usage

gmx saltbr [-f [<.xtc/.trr/ ... >]] [-s [<.tpr/.tpb/ ... >]] [-nice <int>] [-b <time>] [-e <time>] [-dt <time>] [-t <real>] [- [no] sep]

Overview

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

Options to specify input and output files:

-f [<.xtc/.trr/...>] (traj.xtc) (Input)
Trajectory: xtc trr cpt trj gro g96 pdb tng

-s [<.tpr/.tpb/...>] (topol.tpr) (Input)
Run input file: tpr tpb tpa

Other options:

-nice <int> (19)
Set the nicelevel

-b <time> (0)
First frame (ps) to read from trajectory

-e <time> (0)
Last frame (ps) to read from trajectory

-dt <time> (0)
Only use frame when t MOD dt = first time (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)

Releases

5 releases since Debian 4.0 (Etch); the text changed 4 times.

  1. 4.0
  2. 5.0
  3. 6.0
  4. 7
  5. 8

From gromacs-data 5.0.2-1 in Debian 8 (Jessie). Parsed by carta from the page's man source.