GROMACS 3.1
Online Reference

VERSION 3.1
Wed 27 Feb 2002

General

Getting Started

Flow Chart

File Formats

mdp options

FAQ

Programs

Options

do_dssp
editconf
eneconv
ffscan
g_anaeig
g_analyze
g_angle
g_bond
g_bundle
g_chi
g_cluster
g_clustsize
g_confrms
g_covar
g_density
g_dielectric
g_dih
g_dipoles
g_disre
g_dist
g_dyndom
genbox
genconf
g_enemat
g_energy
genion
genpr
g_gyrate
g_h2order
g_hbond
g_helix
g_lie
g_mdmat
g_mindist
g_morph
g_msd
gmxcheck
gmxdump
g_nmeig
g_nmens
g_order
g_potential
g_rama
g_rdf
g_rms
g_rmsdist
g_rmsf
grompp
g_rotacf
g_saltbr
g_sas
g_sgangle
g_sorient
g_tcaf
g_traj
g_velacc
highway
make_ndx
mdrun
mk_angndx
ngmx
pdb2gmx
protonate
tpbconv
trjcat
trjconv
trjorder
wheel
x2top
xpm2ps
xrama

Programs by Topic

Generating topologies and coordinates
Running a simulation
Viewing trajectories
Processing energies
Converting files
Tools
Distances between structures
Distances in structures over time
Mass distribution properties over time
Analyzing bonded interactions
Structural properties
Kinetic properties
Electrostatic properties
Protein specific analysis
Interfaces
Covariance analysis
Normal modes
                      
Generating topologies and coordinates
pdb2gmxconverts pdb files to topology and coordinate files
x2topgenerates a primitive topology from coordinates
editconfedits the box and writes subgroups
genboxsolvates a system
geniongenerates mono atomic ions on energetically favorable positions
genconfmultiplies a conformation in 'random' orientations
genprgenerates position restraints for index groups
protonateprotonates structures
                      
Running a simulation
gromppmakes a run input file
tpbconvmakes a run input file for restarting a crashed run
mdrunperforms a simulation
xmdrunperforms simulations with extra experimental features
                      
Viewing trajectories
ngmxdisplays a trajectory
trjconvconverts trajectories to e.g. pdb which can be viewed with e.g. rasmol
                      
Processing energies
g_energywrites energies to xvg files and displays averages
g_enematextracts an energy matrix from an energy file
mdrunwith -rerun (re)calculates energies for trajectory frames
                      
Converting files
editconfconverts and manipulates structure files
trjconvconverts and manipulates trajectory files
trjcatconcatenates trajectory files
eneconvconverts energy files
xmp2psconverts XPM matrices to encapsulated postscript (or XPM)
                      
Tools
make_ndxmakes index files
mk_angndxgenerates index files for g_angle
gmxcheckchecks and compares files
gmxdumpmakes binary files human readable
g_trajplots x, v and f of selected atoms/groups (and more) from a trajectory
g_analyzeanalyzes data sets
trjorderorders molecules according to their distance to a group
                      
Distances between structures
g_rmscalculates rmsd's with a reference structure and rmsd matrices
g_confrmsfits two structures and calculates the rmsd
g_clusterclusters structures
g_rmsfcalculates atomic fluctuations
                      
Distances in structures over time
g_mindistcalculates the minimum distance between two groups
g_distcalculates the distances between the centers of mass of two groups
g_bondcalculates distances between atoms
g_mdmatcalculates residue contact maps
g_rmsdistcalculates atom pair distances averaged with power 2, -3 or -6
                      
Mass distribution properties over time
g_trajplots x, v, f, box, temperature and rotational energy
g_gyratecalculates the radius of gyration
g_msdcalculates mean square displacements
g_rotacfcalculates the rotational correlation function for molecules
g_rdfcalculates radial distribution functions
                      
Analyzing bonded interactions
g_bondcalculates bond length distributions
mk_angndxgenerates index files for g_angle
g_anglecalculates distributions and correlations for angles and dihedrals
g_dihanalyzes dihedral transitions
                      
Structural properties
g_hbondcomputes and analyzes hydrogen bonds
g_saltbrcomputes salt bridges
g_sascomputes solvent accessible surface area
g_ordercomputes the order parameter per atom for carbon tails
g_sganglecomputes the angle and distance between two groups
g_sorientanalyzes solvent orientation around solutes
g_bundleanalyzes bundles of axes, e.g. helices
g_disreanalyzes distance restraints
                      
Kinetic properties
g_trajplots x, v, f, box, temperature and rotational energy
g_velacccalculates velocity autocorrelation functions
g_tcafcalculates viscosities of liquids
                      
Electrostatic properties
geniongenerates mono atomic ions on energetically favorable positions
g_potentialcalculates the electrostatic potential across the box
g_dipolescomputes the total dipole plus fluctuations
g_dielectriccalculates frequency dependent dielectric constants
                      
Protein specific analysis
do_dsspassigns secondary structure and calculates solvent accessible surface area
g_chicalculates everything you want to know about chi and other dihedrals
g_helixcalculates everything you want to know about helices
g_ramacomputes Ramachandran plots
xramashows animated Ramachandran plots
wheelplots helical wheels
                      
Interfaces
g_potentialcalculates the electrostatic potential across the box
g_densitycalculates the density of the system
g_ordercomputes the order parameter per atom for carbon tails
g_h2ordercomputes the orientation of water molecules
g_bundleanalyzes bundles of axes, e.g. transmembrane helices
                      
Covariance analysis
g_covarcalculates and diagonalizes the covariance matrix
g_anaeiganalyzes the eigenvectors
                      
Normal modes
gromppmakes a run input file
mdrunfinds a potential energy minimum
nmruncalculates the Hessian
g_nmeigdiagonalizes the Hessian
g_anaeiganalyzes the normal modes
g_nmensgenerates an ensemble of structures from the normal modes


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