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gmx-confrms - Online in the Cloud

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This is the command gmx-confrms that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


gmx-confrms - Fit two structures and calculates the RMSD

SYNOPSIS


gmx confrms [-f1 [<.tpr/.gro/...>]] [-f2 [<.gro/.g96/...>]]
[-n1 [<.ndx>]] [-n2 [<.ndx>]] [-o [<.gro/.g96/...>]]
[-no [<.ndx>]] [-[no]w] [-[no]one] [-[no]mw] [-[no]pbc]
[-[no]fit] [-[no]name] [-[no]label] [-[no]bfac]

DESCRIPTION


gmx confrms computes the root mean square deviation (RMSD) of two structures after
least-squares fitting the second structure on the first one. The two structures do NOT
need to have the same number of atoms, only the two index groups used for the fit need to
be identical. With -name only matching atom names from the selected groups will be used
for the fit and RMSD calculation. This can be useful when comparing mutants of a protein.

The superimposed structures are written to file. In a .pdb file the two structures will be
written as separate models (use rasmol -nmrpdb). Also in a .pdb file, B-factors calculated
from the atomic MSD values can be written with -bfac.

OPTIONS


Options to specify input files:

-f1 [<.tpr/.gro/...>] (conf1.gro)
Structure+mass(db): tpr gro g96 pdb brk ent

-f2 [<.gro/.g96/...>] (conf2.gro)
Structure file: gro g96 pdb brk ent esp tpr

-n1 [<.ndx>] (fit1.ndx) (Optional)
Index file

-n2 [<.ndx>] (fit2.ndx) (Optional)
Index file

Options to specify output files:

-o [<.gro/.g96/...>] (fit.pdb)
Structure file: gro g96 pdb brk ent esp

-no [<.ndx>] (match.ndx) (Optional)
Index file

Other options:

-[no]w (no)
View output .xvg, .xpm, .eps and .pdb files

-[no]one (no)
Only write the fitted structure to file

-[no]mw (yes)
Mass-weighted fitting and RMSD

-[no]pbc (no)
Try to make molecules whole again

-[no]fit (yes)
Do least squares superposition of the target structure to the reference

-[no]name (no)
Only compare matching atom names

-[no]label (no)
Added chain labels A for first and B for second structure

-[no]bfac (no)
Output B-factors from atomic MSD values

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