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-HEAD|Generating topologies and coordinates
-editconf|edits the box and writes subgroups
-g_protonate|protonates structures
-g_x2top|generates a primitive topology from coordinates
-genbox|solvates a system
-genconf|multiplies a conformation in 'random' orientations
-genion|generates mono atomic ions on energetically favorable positions
-genrestr|generates position restraints or distance restraints for index groups
-pdb2gmx|converts coordinate files to topology and FF-compliant coordinate files
-END
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-HEAD|Running a simulation
-grompp|makes a run input file
-mdrun|performs a simulation, do a normal mode analysis or an energy minimization
-tpbconv|makes a run input file for restarting a crashed run
-END
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-HEAD|Viewing trajectories
-g_nmtraj|generate a virtual trajectory from an eigenvector
-ngmx|displays a trajectory
-END
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-HEAD|Processing energies
-g_enemat|extracts an energy matrix from an energy file
-g_energy|writes energies to xvg files and displays averages
-mdrun|with -rerun (re)calculates energies for trajectory frames
-END
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-HEAD|Converting files
-editconf|converts and manipulates structure files
-eneconv|converts energy files
-g_sigeps|convert c6/12 or c6/cn combinations to and from sigma/epsilon
-trjcat|concatenates trajectory files
-trjconv|converts and manipulates trajectory files
-xpm2ps|converts XPM matrices to encapsulated postscript (or XPM)
-END
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-HEAD|Tools
-g_analyze|analyzes data sets
-g_dyndom|interpolate and extrapolate structure rotations
-g_filter|frequency filters trajectories, useful for making smooth movies
-g_lie|free energy estimate from linear combinations
-g_morph|linear interpolation of conformations
-g_pme_error|estimates the error of using PME with a given input file
-g_select|selects groups of atoms based on flexible textual selections
-g_sham|read/write xmgr and xvgr data sets
-g_spatial|calculates the spatial distribution function
-g_traj|plots x, v and f of selected atoms/groups (and more) from a trajectory
-g_tune_pme|time mdrun as a function of PME nodes to optimize settings
-g_wham|weighted histogram analysis after umbrella sampling
-gmxcheck|checks and compares files
-gmxdump|makes binary files human readable
-make_ndx|makes index files
-mk_angndx|generates index files for g_angle
-trjorder|orders molecules according to their distance to a group
-xpm2ps|convert XPM (XPixelMap) file to postscript
-END
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-HEAD|Distances between structures
-g_cluster|clusters structures
-g_confrms|fits two structures and calculates the rmsd
-g_rms|calculates rmsd's with a reference structure and rmsd matrices
-g_rmsf|calculates atomic fluctuations
-END
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-HEAD|Distances in structures over time
-g_bond|calculates distances between atoms
-g_dist|calculates the distances between the centers of mass of two groups
-g_mindist|calculates the minimum distance between two groups
-g_mdmat|calculates residue contact maps
-g_polystat|calculates static properties of polymers
-g_rmsdist|calculates atom pair distances averaged with power -2, -3 or -6
-END
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-HEAD|Mass distribution properties over time
-g_gyrate|calculates the radius of gyration
-g_msd|calculates mean square displacements
-g_polystat|calculates static properties of polymers
-g_rdf|calculates radial distribution functions
-g_rotacf|calculates the rotational correlation function for molecules
-g_rotmat|plots the rotation matrix for fitting to a reference structure
-g_sans|computes the small angle neutron scattering spectra
-g_saxs|computes the small angle X-Ray scattering spectra
-g_traj|plots x, v, f, box, temperature and rotational energy
-g_vanhove|calculates Van Hove displacement functions
-END
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-HEAD|Analyzing bonded interactions
-g_angle|calculates distributions and correlations for angles and dihedrals
-g_bond|calculates bond length distributions
-mk_angndx|generates index files for g_angle
-END
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-HEAD|Structural properties
-g_anadock|cluster structures from Autodock runs
-g_bundle|analyzes bundles of axes, e.g. helices
-g_clustsize|calculate size distributions of atomic clusters
-g_disre|analyzes distance restraints
-g_hbond|computes and analyzes hydrogen bonds
-g_order|computes the order parameter per atom for carbon tails
-g_principal|calculates axes of inertia for a group of atoms
-g_rdf|calculates radial distribution functions
-g_saltbr|computes salt bridges
-g_sas|computes solvent accessible surface area
-g_sgangle|computes the angle and distance between two groups
-g_sorient|analyzes solvent orientation around solutes
-g_spol|analyzes solvent dipole orientation and polarization around solutes
-END
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-HEAD|Kinetic properties
-g_bar|calculates free energy difference estimates through Bennett's acceptance ratio
-g_current|calculate current autocorrelation function of system
-g_dos|analyzes density of states and properties based on that
-g_dyecoupl|extracts dye dynamics from trajectories
-g_kinetics|analyzes kinetic constants from properties based on the Eyring model
-g_principal|calculate principal axes of inertion for a group of atoms
-g_tcaf|calculates viscosities of liquids
-g_traj|plots x, v, f, box, temperature and rotational energy
-g_vanhove|compute Van Hove correlation function
-g_velacc|calculates velocity autocorrelation functions
-END
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-HEAD|Electrostatic properties
-g_current|calculates dielectric constants for charged systems
-g_dielectric|calculates frequency dependent dielectric constants
-g_dipoles|computes the total dipole plus fluctuations
-g_potential|calculates the electrostatic potential across the box
-g_spol|analyze dipoles around a solute
-genion|generates mono atomic ions on energetically favorable positions
-END
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-HEAD|Protein-specific analysis
-do_dssp|assigns secondary structure and calculates solvent accessible surface area
-g_chi|calculates everything you want to know about chi and other dihedrals
-g_helix|calculates basic properties of alpha helices
-g_helixorient|calculates local pitch/bending/rotation/orientation inside helices
-g_rama|computes Ramachandran plots
-g_wheel|plots helical wheels
-g_xrama|shows animated Ramachandran plots
-END
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-HEAD|Interfaces
-g_bundle|analyzes bundles of axes, e.g. transmembrane helices
-g_density|calculates the density of the system
-g_densmap|calculates 2D planar or axial-radial density maps
-g_densorder|calculate surface fluctuations
-g_h2order|computes the orientation of water molecules
-g_hydorder|computes tetrahedrality parameters around a given atom
-g_order|computes the order parameter per atom for carbon tails
-g_membed|embeds a protein into a lipid bilayer
-g_potential|calculates the electrostatic potential across the box
-END
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-HEAD|Covariance analysis
-g_anaeig|analyzes the eigenvectors
-g_covar|calculates and diagonalizes the covariance matrix
-make_edi|generate input files for essential dynamics sampling
-END
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-HEAD|Normal modes
-g_anaeig|analyzes the normal modes
-g_nmeig|diagonalizes the Hessian
-g_nmtraj|generate oscillating trajectory of an eigenmode
-g_nmens|generates an ensemble of structures from the normal modes
-grompp|makes a run input file
-mdrun|finds a potential energy minimum and calculates the Hessian
-END