Software Library of the Molecular Modeling Core Facility.

Mihaly Mezei, Ph.D.

Mount Sinai School of Medicine, NYU.
Department of Structural and Chemical Biology

IMI, Rm 15-23A
(212) 659-5475 (Ext. 85475)
E-mail address: Mihaly.Mezei@mssm.edu

You are invited to send comments, suggestions and corrections

Jan. 23, 2008.

CONTENTS

Note: For programs marked with --> DOCU a link is provided to the documentation kept on line.

The Molecular Modeling Core has acquired an extensive software library that is outlined in this section. The information here describes only the main features and the access to the programs, the use of each program is described in the corresponding documentation that is available to the users. Besides the programs already acquired, information is kept on software available to us. This information includes a complete catalog of the programs available at the Quantum Chemistry Program Exchange (QCPE) and the program exchange maintained by the British Science Research Council at Daresbury CCP5). Contact Dr. Mezei for details.

1. Mathematics oriented programs.

1.1. Mathematica

Mathematica is a sophisticated program to perform symbolic mathematical operations. Type math to start it in the command line mode or mathematica to run it with its X-windows interface.

1.2. Matlab

Matlab is an interactive software package for scientific and engineering numeric computation, running on the graphics SGI's. It integrates numerical analysis, matrix computation, signal processing. It also has excellent graphics capabilities to plot graphs in one and two dimensions. Note, that a graphics terminal is needed to view graphics output. To run, type matlab. If you are on a graphics terminal type terminal and follow the directions. Type demo for a demonstration.

1.3. Numerical Recipes.

The subroutines (source code) described in the book Numerical Recipes (together with drivers that show how to incorporate them into a complete program) are available both in C and Fortran77. They are in the directories nrecipes/f /nrecipes/c for the Fortran and C versions, respectively. For each program there is a subdirectory routines and an other called demos containing the subroutines and corresponding demos, respectively. The demos provide a driver and some test.

2. General purpose visualization programs.

2.1. Gnuplot.   DOCUMENTATION

  HOME Platform: SGI/mips

Gnuplot is an interactive plotting package. It is able to generate linear, 2D and 3D plots on an X-terminal as well as to create postscript file. To execute type gnuplot.

2.2. XMGR.     DOCUMENTATION
    HOME

Platform: SGI/mips
USE command: use molmod

XMGR is a general plotting program running on the SGI's, written in the Witzmann Institute. Newer versions have been renamed to Grace. Type xmgr to run it.

2.3. TeX.

Platform: SGI/mips
USE command: use tex-beta

TeX is essentially a metalanguage (like postscript) that produces high-quality print of mathematical 'objects'. If you have a file written in this language, you can obtain hardcopy of it as follows: The filename should have the extension .tex. There are several variants, like LaTeX, REVTeX, AMSTeX.

Type pdftex <name> to obtain a PDF file <name>.pdf or by tex <name> or latex <name> for TeX and LaTeX, respectively, to obtain the device independent file <name>.dvi. To obtain the postscript file, type dvips <name>

We also have a converter from WordPerfect to LaTeX (in a rudimentary fashion) - see Dr. Mezei if interested in it.

To use TeX/LaTeX on a PC, download MikTeX

3. Electronic structure calculation.

We have currently installed the programs Gaussian, Gamess, and Molcas for ab-initio calculations, and the semiempirical packages Mopac and Amsol.

3.1. Gaussian    HOME

Platform: SGI/mips
USE command: use molmod

The current version is Gaussian-98, revision A7.

The command gaussian jobname will submit a Gaussian job using the file jobname.g98 as input, and jobname.g98out as output. Scratch space will be used in the directory called username (the same as your login id) on the reserve, scratch or home file system of the host running the job - it picks the first one available.

Runs requiring large scratch space must be submitted with -lf <space>mb added to the gaussian command where <space> is the number of megabytes of disk space guaranteed to be available during the run (see the df command to determine the amount of space available).

Note, that using more than one CPU requires the line %Nproc=N in the .g98 input file where N is the number of processors requested.

3.2. Molcas     DOCUMENTATION     HOME

Platform: SGI/mips
USE command: use molmod

Molcas is a direct-CI program package from B. Ross's group in Lundt, Sweden. It is installed on the SGI server in the directory /hosts/fulcrum/homes/molmod/src/molcas. The executables are in the subdirectory bin and examples can be found in the subdirectory examples.

3.3. Gamess     DOCUMENTATION     HOME

Platform: SGI/mips
USE command: use molmod

The ab-initio package GAMESS (a descendant of HONDO) can be run by typing gamess <JOBNAME> <Number of processors>. The input data should be in a file called <JOBNAME>.inp . Like Gaussian, scratch space will be used in the directory called username on the reserve, scratch or home filesystems.

There is a directory tests in the gamess distribution directory (/hosts/fulcrum/homes/molmod/src/gamess) containing example input files (and described in the documentation).

3.4. Gamess graphics utilities     DOCUMENTATION     HOME

Platform: SGI/mips
USE command: use molmod

There are also graphics utilities available in conjunction with Gamess. For now, they can be found in the directory /hosts/fulcrum/homes/molmod/src/gamess/graphics. For example, mepmap <jobname> generates a density contour plot either as a PostScript file or displayed in an X-window.

3.5. Mopac     DOCUMENTATION

Platform: SGI/mips
USE command: use molmod

The command mopac executes Mopac93. Examples can be found in /hosts/fulcrum/homes/molmod/src/mopac_93/mopac_examples .

3.6. Amsol     DOCUMENTATION

Platform: SGI/mips
USE command: use molmod

Amsol is an extension of the semiempirical program AMPAC to calculate aqueous solvation free energy by including the solvent reaction field into the Hamiltonian. It is on the SGI server. To run it, type amsol < input > output. Several test input and output files are in the directory /hosts/fulcrum/homes/molmod/src/amsol with extensions .dat and.out , respectively.

3.7. Molekel     HOME

Platform: SGI/mips
USE command: use molmod

Molekel displays electron density calculated by GAUSSIAN, NBO, GAMESS*, Hondo, ADF, prddo. It can decompose densities to orbital components. Type molekel on a graphics terminal.

3.8. Molden     DOCUMENTATION     HOME

Platform: SGI/mips
USE command: use molmod

Molden is a package for displaying molecular density. It is tuned to the Ab Initio packages GAMESS* and GAUSSIAN. It can read all the information it needs from a GAMESS or GAUSSIAN outputfile. Type molden on any of the graphics workstation to start the program.

Test inputs are in the directory /hosts/fulcrum/homes/molmod/src/molden3.3/test

4. Molecular modeling.

Molecular modeling generally proceeds in three stages. The system under study has to be 'built' in the computer in the first stage. This may be as simple as reading in coordinates from one of the crystallographic databases or clicking on the residue names, or as complex as sketching the molecules with the use of the interactive graphic systems or building it from fragments already programmed in these programs. The program Simulaid has been written to facilitiate various aspects of this step. The second stage requires a force field, i.e., a simple mathematical model for the intermolecular interactions. Energy minimization finds the minimum energy structure nearest to the configuration generated in the first step. Simulated annealing is an efficient (but not the only) way to search for several local minima in the hope of locating the global minimum. An equilibrium ensemble of configurations at a given temperature can be obtained by simulation (generally molecular dynamics, but also Monte Carlo is an option). Simulation is in general rather time-consuming. The third stage is the analysis of the results from the previous two. It can be as simple as the querying of the generated structure to find out its geometrical parameters to running specialized programs for the determination of, say, DNA helix axis bend. Some of the 'standard' analysis programs are described below. Other possibilities include the animation of a molecular dynamics simulation history. Clearly, as the questions to be asked vary from system to system, additional programs will be needed for newly emerging questions.

Full graphics molecular modeling programs that run interactively on the Silicon Graphics workstations are: InsightII/Discover, Quanta, Sybyl, Macromodel, Grasp, MSV, VMD, Rasmol, Molmol. These programs allow for creating and manipulating small molecules as well as biopolymers. They provide for energy calculation, minimization and molecular dynamics (including animation). Most of them also handle sequence information, including various secondary structure prediction schemes and homology searches. All of these programs also provide a variety of analysis options. Most of these programs can not be run remotely.

Molecular modeling programs that can be run independently include Charmm, Amber, BatchMin, NAMD, BOSS and MMC. The program Delphi is also available to calculate the electrostatic solvation energy of a molecule. Running these programs requires the preparation of data files and a script file containing the command that executes the program and identifies the input and output files. Each of these programs is reasonably well documented and examples are provided in the manuals. Help can also be obtained from Dr. Mezei. Additional examples are also available from people already using these programs. These files can be prepared and submitted remotely i.e., from any of the terminals in the building, or logging on to the requisite host from another computer.

We also have several programs that have been written for a particular analysis task. If there is a program you wrote or know of that could be useful, we can add it to our holdings.

4.1. Full graphics programs

4.1.1. InsightII/Discover     HOME

Platform: SGI/mips

To start InsightII/Discover, log on to an SGI graphics workstation and type insightII. InsightII also provides an interface to the Discover program package to perform minimization and molecular dynamics.

The structures generated by Insight can be converted to Charmm, Amber or Moil input with the program Intocham (see Sec. 4.3.8.).

4.1.2. Quanta     HOME

Platform: SGI/mips

To use Quanta, type quanta. Quanta provides an interface to Charmm.

4.1.3. Sybyl    HOME

Platform: SGI/mips

To start Sybyl type sybyl on any of the SGI graphics workstations. Sybyl also has a command-mode that allows you to run it from non-graphics terminals.

Currently, we don't have license for Sybyl.

4.1.4. Macromodel     HOME

Platform: SGI/mips
USE command: use molmod

Macromodel is a molecular modeling package originally from Columbia University. It allows the use of several force fields. Minimization, molecular dynamics and Monte Carlo - molecular dynamics combinations can be performed, either interactively or in batch. To run it interactively (on the SGI graphics terminals) type mmod or macromodel. The program is in the directory /hosts/fulcrum/homes/molmod/src/macromodel_v0 - the environmental variable MMOD_ROOT should point here. Macromodel can also be run from a Mac running MacX. The batch-version (called BatchMin) can be executed by typing bmin.

The package contains a number of utility programs as well as the program xcluster that performs cluster analysis on distance matrices.

4.1.5. VMD     DOCUMENTATION (HTML)     DOCUMENTATION (PDF)     HOME

Platform: SGI/mips

VMD is a molecular graphics package from the Theoretical Biophysics Group at the University of Illinois and Beckman Institute. Type vmd to run it.

4.1.6. Grasp     DOCUMENTATION     HOME

Platform: SGI/mips

Grasp is a program for visualizing surface properties like curvature, electric field. It emphasizes electrostatics and includes a simplified version of Delphi. To run it, type grasp. Clicking on the right-hand mouse button pops up the main menu. A brief tutorial is also available.

The program Simulaid can prepare a charge file from Charmm or Amber topology (RTF) files.

4.1.7. MSV     DOCUMENTATION

Platform: SGI/mips

MSV is a surface visualization program using the molecular surface computation package MSMS written by Michael Sanner at Scripps. It is faster than Grasp. Type msv to run it.

4.1.8. Rasmol

Platforms: SGI/mips, Windows, Mac

Rasmol is a public-domain molecular graphics program running on X-terminals to visualize proteins, nucleic acids and small molecules and produce publication quality figures. Type rasmol on an X-terminal to run it. Help is available at the command line.

It can also be installed on your PC or Mac.

4.1.9. Molmol    DOCUMENTATION     HOME

Platforms: SGI/mips, Windows

Molmol is a full graphich program from the Wutrich Laboratory In Zurich. Besides the documentiation, there is an on-line tutorial.

4.1.10. Whatif

Platform: SGI/mips

Whatif is a collection of modeling and sequence analysis programs with a graphics interface. It has been installed on the SGI's. It starts by typing whatif. There is a printed manual and there are tutorials.

4.1.11. Molscript     DOCUMENTATION     HOME

Platform: SGI/mips

Molscript, written by Per Kraulis, creates schematic or detailed molecular graphics images from molecular coordinates, mostly for protein structures. The command molauto pdb1crn.ent > molscr.inp followed by molscript -ps < molscr.inp > molscr.ps produces a Postscript file molscr.ps generated with the default options.

4.2. Batch oriented molecular modeling programs

4.2.1. Charmm    DOCUMENTATION:    V24 text    V26 HTML    DOCU (V27 text)    DOCU (V28 text)

Charmm is the most widely used modeling program at the Core and several versions of it are available.

Older versions (SGI only):

Current version (Charmm 27): Latest version (Charmm28)

The toppar directory of the older versions have been placed into /hosts/fulcrum/homes/molmod/src/charmm_archive/data/toppar_22 and /hosts/fulcrum/homes/molmod/src/charmm_archive/data/toppar_23

4.2.2. Amber     DOCUMENTATION (HTML)     DOCUMENTATION (PDF)     HOME

Platform: SGI/mips
USE command: use amber

The command use amber puts into your path the Amber 6.0 executables.

An interactive interface called Leap generates Amber input files. On an X-terminal type xleap (you may have to execute the requisite setenv DISPLAY command as well) to start it.     Interface front end documentation     Interface documentation

Version 0 is on the SGI server in the directory /hosts/fulcrum/homes/molmod/src/amber_v0,

4.2.3. NAMD     DOCUMENTATION     HOME

Platform: SGI/mips

NAMD is a fast molecular dynamics program from the Theoretical Biophysics Group at the University of Illinois and Beckman Institute.

4.2.4. CPMD     DOCUMENTATION

Platform: SGI/mips
USE command: use molmod

CPMD is an ab-initio molecular simulation program based on the Car-Parinello method. Type cpmd to start the program.

4.2.5. Modeller     DOCUMENTATION     HOME

Platforms: SGI/mips, Linux, Alpha/tru64
USE command: use molmod

Modeller is a program for protein modeling with spatial restraints written by Andrej Sali. It is most frequently used for homology or comparative modeling. Type modeller <command file> to run it. Test cases are in the directory /hosts/fulcrum/homes/molmod/src/modeller6v1/scripts on the SGI server. The command file should have the extension <top>. A printed documentation is also available.

4.2.6. BOSS     DOCUMENTATION     HOME

Platform: SGI/mips
USE command: use molmod

Boss is the Monte Carlo program developed by W.L. Jorgensen. A sample command file uboptcmd can be found in /hosts/fulcrum/homes/molmod/src/boss.

4.2.7. MMC    DOCUMENTATION     HOME

Platforms: SGI/mips, Linux, Alpha/tru64

MMC is a Metropolis Monte Carlo program to model the solvation in the canonical or isobaric or grand-canonical ensemble or to model the transformation of one solute into another. Several novel free-energy methodologies are implemented. It can also perform the analysis of the simulation history by partitioning the solvents by their proximity to the various functional groups of the solute. The input for such analysis can also be a Charmm or Amber trajectory file. See Dr. Mezei for the latest version of the program.

4.2.8. Delphi     DOCUMENTATION     HOME

Platform: SGI/mips
USE command: use molmod

Delphi solves the linearized Poisson-Boltzmann equation for irregular shaped charged systems immersed in a dielectric. Both the charges and the dielectric constants at the various locations of the system are specified by the user. Type delphi prm > logfile & to run it where prm is the name of the parameter file. Example parameter file is in /hosts/fulcrum/homes/molmod/src/delphi/export99/pti.

4.2.9. UHBD     DOCUMENTATION     HOME

Platforms: SGI/mips, Linux, Alpha/tru64
USE command: use molmod

The command uhbd starts the University of Houston Brownian Dynamics program dimensioned to use 65x65x65 grid. Typing uhbd 110 starts (only on the SGI's for now) the version using a 110x110x110 grid. Among others, it performs Brownian dynamics simulations and solves the Poisson-Boltzmann equation.

4.2.10. Maxwell     DOCUMENTATION     HOME

The program package Maxwell (QCPE #637) calculates electrostatic interactions of either a finite set or of a crystal of polarizable molecules. The molecular charge distribution are characterized by a multipolar expansion in the form of general directional derivatives, based on the formalism of Maxwell. The package can also obtain multipole moments of arbitrary order from a one-determinental Gaussian wave function. For crystals the permanent multipole contribution is calculated with Campbell's generalization of the Ewald method to lattices of multipoles of arbitrary order. Calculation of energy contributions in the form of inverse distance power terms is also provided for. See Dr. Mezei for references or the programs.

4.2.11. Polyrate     DOCUMENTATION

Platforms: SGI/mips, Linux, Alpha/tru64

Polyrate is a program for calculation of reaction rates based on information about the intermolecular potential surface using transition state theory. Its use requires that you provide the energy calculation routines. The programs can be found on the SGI server in /hosts/fulcrum/homes/molmod/src/polyrate.

4.2.12. A. Rashin's solvation program     DOCUMENTATION

Platforms: SGI/mips, Linux, Alpha/tru64

A program calculating hydration enthalpy of a polar or ionic molecules, based on a continuum solvation model of Alex Rashin (and written by him), is on the SGI server, in the directory /hosts/fulcrum/homes/molmod/src/csolvation. The directory contains sample scripts, as well as the executables and data files.

4.2.13. Jumna and Ligand

Platform: SGI/mips
USE command: use molmod

Jumna can build, manipulate and energy minimize fragments of DNA or RNA based on the helicoidal parameter set defined by Lavery and coworkers. A variety of constraints can be imposed. Input data can be prepared by the program Curves (see 4.3.2.) or the companion program Nchem. Ligand can energy minimize a molecule or a molecular complex. The commands jumna, ligand and nchemo, respectively, run them.

4.2.14. Congen     DOCUMENTATION

Platforms: SGI/mips, Linux, Alpha/tru64

Congen is written by R.E. Bruccoleri to perform an exhaustive conformational search. The program is a descendant of Charmm. It is in the directory /hosts/fulcrum/homes/molmod/src/congen (with test), and the executable is called congen.

4.2.15. Qpack     DOCUMENTATION

Platform: SGI/mips
USE command: use molmod

The program package Qpack from UCFS (obtained for us by Dr. Osman) calculates both a 'contact list' and a residue-based energy for a protein in a given conformation to quantify the packing efficiency.

5.4.3. Structure and simulation analysis programs

4.3.1. hb_ldp

Platform: SGI/mips
USE command: use molmod

Calculates and plots hydrogen-bond distance matrix and linear distance plot (written by Alan Factor). Type hb_ldp at any SGI graphics terminal and answer the questions.

4.3.2. Curves, Pcurves     DOCUMENTATION     HOME

Platform: SGI/mips

Curves calculates the helicoidal parameters of a nucleic acid as defined by Lavery and coworkers. Pcurves contains the corresponding generalization to polypeptide chains. Both are accessible through the program Dials and Windows (part of MD Toolchest or run independently on the SGI server. Type curves to run it.

4.3.3. MD Toolchest     DOCUMENTATION     Wesgraph DOCUMENTATION     HOME

Platform: SGI/mips
USE command: use mdtc

MD Toolchest is the successor of Dials and Windows from the Beveridge group at Wesleyan University. Wesgraph is the associated graphics package. Examples for both can be found in the Wesleyan home page

4.3.4. Plotcorr     DOCUMENTATION     OUTPUT EXAMPLE

Platform: SGI/mips
USE command: use molmod

Interactive representation of predicted residue contacts from correlated mutations and other protein structure prediction data.

The program takes as only input a multiple sequence alignment in .hssp format This files are generated and used by the PHD sever at the EMBL. Clustal can also be used to convert from other formats. As optional input the program can read the secondary structure and accesibility from the file that the PHD server returns as an accesibility and secondary structure prediction query. To run it (on any SGI graphics workstation), type

plotcorr <hssp_file> [<PHDfile>]

4.3.5. Brookhaven PDB analysis programs (Procheck)     DOCUMENTATION     HOME

Platforms: SGI/mips, Linux, Alpha/tru64
USE command: use molmod

Procheck is a suite of program developed in the laboratory of Janet M, Thornton. The command procheck input.pdb resolution will run the whole suit and the command proplot input.pdb resolution runs the program proplot where input.pdb is the input PDB filename and resolution is the resolution of the structure (in Å).

4.3.6. ProsaII (Protein structure analysis)     DOCUMENTATION     HOME

Platform: SGI/mips
USE command: use molmod

ProsaII analyzes a protein structure for potential deficiencies. Type prosaII (on Cadiz, Valdez or Cyclops only!) to open a window. Sample session is described in the manual, starting at page 20. The test command files are located in /hosts/fulcrum/homes/molmod/src/ProsaII3.0, and the corresponding PDB files are in ProsaII's default brookhaven directory, /hosts/fulcrum/homes/molmod/src/ProsaII3.0/brookhaven .

4.3.7. Simloc     DOCUMENTATION     HOME

Platforms: SGI/mips, Linux, Alpha/tru64
USE command: use molmod

Simloc, written by Dr. Mezei, takes as input the coordinates (in PDB, Charmm or Insight format) of two molecules (or two conformations of a molecule) and detects local similarities, i.e., generates substructures with low RMS. The substructures found depend on a threshold parameter RMSmax, the smaller RMSmax is, the smaller in general will the substructure RMS's be. The substructure RMS values are not limited by RMSmax, though. To execute the program, type simloc on the SGI's and answer the quiz.

4.3.8. DSSP     DOCUMENTATION     HOME

Platforms: SGI/mips, Linux, Alpha/tru64
USE command: use molmod

DSSP is a widely used program thatassigns secondary structure elements to protein residues. It reads in a protein structure in PDB format and analyzes it for structural motifs. Type

dssp <input file name> <output filename> to run it.

4.3.9. Gepol     DOCUMENTATION

Platforms: SGI/mips, Linux, Alpha/tru64
USE command: use molmod

Gepol is the program of Juan Luis Pascal calculating molecular surfaces defined in three different ways. The latest version is in the directory /hosts/fulcrum/homes/molmod/src/gepol. The directory also contains older versions and examples. Type gepol to run it.

4.3.10. MSMS     DOCUMENTATION

MSMS computes, for a given set of spheres S and a probe radius rp , the Reduced Surface and the analytical model of the Solvent Excluded Surface (SES). The SES can then be triangulated with a given vertex density. The surfaces calculated by MSMS can be visualized by the program MSV. Type msms to run it.

4.3.11. Simulaid     DOCUMENTATION     HOME

Platforms: SGI/mips, Linux, Alpha/tru64
USE command: use molmod

Simulaid, written by Dr. Mezei, is a collection of utilities helping the setup and analysis of a simulation. It can perform the following operations:

Type simulaid to run the program and answer the quizzes.

4.3.12. Babel     DOCUMENTATION     HOME

Platforms: SGI/mips, Linux, Alpha/tru64
USE command: use molmod

Babel is a coordinate file conversion program, able to interconvert among a number of formats used by popular modeling and ab initio programs. Type babel -m to be presented with the menu and answer the quiz.

4.3.13. Ligplot, Nucplot, Hbplus     DOCUMENTATION     LIGPLOT & NUCPLOT HOME     HBPLUS HOME

Platform: SGI/mips, Linux
USE command: use molmod

The program Ligplot (from J. Thornton's lab) produces a nice schematic drawing of the environment of a ligand (based on a given structure) marking hydrogen bonds and hydrophobic contacts has been installed on Gene. The hydrogen bonds are established from the program Hbplus, also installed and called automatically by Ligplot. To run it, type

ligplot <PDB file name> startres endres chainID -h

where the ligand stretches from residue startres and ends at residue number endres and its chain identifier is chainID. Adding the -h will have the program prompt you for a plot title. The resulting (Postscript) plot will be in a file called ligplot.ps.

Additional hydrogen bonds can be defined by the program hbadd - see the Ligplot documentation for its use.

4.3.14. Dock     DOCUMENTATION (ver. 4.0)    ver. 5.1     HOME

Platform: SGI/mips
USE command: use molmod

Dock is a collection of programs that allows the search of a database to find matches with a target structure. Version 1 has been installed on the SGI server. Type dock5 to run it. Examples are in /hosts/fulcrum/homes/molmod/src/dock_1.0/demo.

4.3.15. Rutgers Nucleic Acid Analysis Programs

Platforms: SGI/mips, Linux, Alpha/tru64
USE command: use molmod

This is a DNA analysis package, written in the laboratory of Wilma Olson at Rutgers by Marla S. Babcock. It has been documented in a paper (Babcock, M.S., Pednault, E.P.D, and Olson, W.K., "Nucleic Acid Structure Analysis: A Users Guide to a Collection of New Analysis Programs," Journal of Biomolecular Structure and Dynamics, Vol. 11, No. 3, pp 597-628, 1993.) Dr. Mezei has a copy. Type rna in any window to start the analysis program.

4.3.16 Connolly     DOCU

The program connolly calculates molecular surfaces.

To run, type connolly <file1.dat> <file2.dat> <input.dat> where the three file names contain the three types of data required by the program. The directory /hosts/fulcrum/homes/molmod/src/connolly contains two files called file1.dat and file2.dat with default values.

Platforms: SGI/mips.
USE command: use molmod

4.3.17. Voidoo     DOCUMENTATION     HOME

Platform: SGI/mips
USE command: use molmod

Voidoo is a program from the Uppsala Software Factory. It finds cavities in a molecule, calculates their volume and finds the residues/atoms lining the cavities. Type voidoo to run it.

4.3.18. Vega     DOCUMENTATION     HOME

Platform: SGI/mips
USE command: use molmod

Vega was developed to create a bridge between most of the molecular software packages, like BioDock, Quanta/CHARMm, InsightII, Mopac, etc. In this tool have been also implemented some features that are useful to analyze, display and manage the 3D structures of molecules. Type vega to run it.

4.3.19 MadBend     DOCUMENTATION     HOME

Platforms: SGI/mips, Linux, Alpha/tru64
USE command: use molmod

MadBend (written by Dan Strahs) is designed to calculate the curvature of DNA, using as input the base pair roll, tilt and twist values (calculated, e.g., by Curves). To run it, type Madbend.

4.3.20. Mepsi     DOCUMENTATION

Platforms: SGI/mips, Linux, Alpha/tru64
USE command: use molmod

Mepsi, written by Ann Richards, calculates a molecular similarity index based on the comparison of the respective electrostatic potential maps. The two potential descriptor files should be called fort.1 and fort.2, resp. Typing mepsi executes the program with default input parameters, typing mepsi <Input file> reads in your own input file.

4.3.21. Nmrclust     DOCUMENTATION     HOME

Platform: SGI/mips
USE command: use molmod

Nmrclust performs overlaying or clustering a set of molecular structures. Comparison is based on user-defined atoms. Type nmrclust to run it.

4.3.22. Intocham     DOCUMENTATION     HOME

Platforms: SGI/mips, Linux, Alpha/tru64
USE command: use molmod

Intocham converts a .car file generated by Insight into a complete (including topology files) input for either Charmm or Amber or Moil. It can also convert the Charmm structure back to Insight. To run it, type intocham and answer the quizzes. Contact Dr. Mezei if problems arise - there can be a number of ambiguities in the type conversions.

4.3.23. MM_SCP     DOCUMENTATION

A program to calculate Ph dependent electrostatic effects in biological macromolecules using a microenvironment modulated, screened Coulomb potential approximation

4.3.24 oc_cluster     DOCUMENTATION     HOME

Platforms: SGI/mips, Linux
USE command: use molmod

Hierarchical clustering program from Geoffrey Barton's Laboratory. It rquires the upper triangular distance matrix elements as input.

To run it with test.dis as your input file type
oc_cluster < test.dis > results.ocout

4.3.25 scwrl     DOCU     HOME

SCWRL is a program for prediction of protein side-chain conformations, using a new algorithm based on graph theory that solves the combinatorial problem in side-chain prediction more rapidly than any other available program.

Type scwrl3 -i <input_file> -o <output_file> to run it.

Platforms: SGI/mips. Linux, Windows, Mac versions available on request
USE command: use molmod

4.3.26 Macrodox     DOCU

MacroDox, among others,

Type macrodox to start it.

If you wan to run the Brownian dynamics program bdtirm8.exe or the PB solver program wwsnl6.exe outside Macrodox (recommended) then you have to type first source /hosts/fulcrum/homes/molmod/bin/macrodock_setup.

Tutorial files are in /hosts/fulcrum/homes/molmod/src/macrodox3/tutor

Platforms: SGI/mips.
USE command: use molmod

4.3.27. Autodock     DOCUMENTATION     HOME

Platform: SGI/mips
USE command: use molmod

Autodock is a flexible docking program package, written in the Laboratory of A. Olson at Scripps. For detailed information and answers to FAQ, go to the URL http://autodock.scripps.edu To perform a docking, type source /hosts/fulcrum/homes/molmod/bin/autodock_setup. This will put into your path the various programs referred to in the manual. Examples can be found in the directory /hosts/fulcrum/homes/molmod/src/autodock_3.0/examples/ .

Autodock4 is installed on Faradis.

4.3.28. Fullcreen     DOCUMENTATION     HOME

Fullscreen is a collection of script and small programs to run virtual screening with Autodock (version 3 or 4).

COntact Dr. Mezei for the latest version.

4.3.29. Dockres     DOCUMENTATION     HOME

Platform: Unix/Linux

Dockres is a Fortran program to filter sot and analyze the result of virtual screening with Autodock (version 3 or 4).

COntact Dr. Mezei for the latest version.

5. Sequence analysis programs.

In conjunction with the sequence databases (see Sec. 4.) we have programs available that perform the searches, retrievals, alignments and other specialized tasks. Besides the programs discussed below, the modeling packages Quanta, Insight and Sybyl also have extensive sequence analysis capabilities.

5.1. GCG.     DOCUMENTATION     HOME

GCG is a package of several programs for sequence analysis running on fulcrum.

Open an xterm window on one of the graphics workstations and type:

5.2. Inquiry bioinformatics package    DOCUMENTATION

The Apple BioTeam's Bioinformatics portal is available on Faradis through a web browser at the URL http://faradis.mssm.edu. It requires a login using your regular Faradis user id and password. a large number of applications are available.

5.3. Clustal DOCUMENTATION     HOME

Clustal is a multiple sequence alignment program. Tu run it, type clustalw to start version 1.82 (Feb. 2001)

Platforms: SGI/mips, Linux, Alpha/tru64
USE command: use molmod

5.4. Refine     DOCUMENTATION

Platforms: SGI/mips, Linux, Alpha/tru64
USE command: use molmod

Refine is a program written by Karel Konvicka to post-process alignments (especially for transmembrane helices) and make some format conversions. Type refine to run the program.

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