Title
Pbeq-Solver For Online Visualization Of Electrostatic Potential Of Biomolecules
Abstract
PBEQ-Solver provides a web-based graphical user interface to read biomolecular structures, solve the Poisson-Boltzmann (PB) equations and interactively visualize the electrostatic potential. PBEQ-Solver calculates (i) electrostatic potential and solvation free energy, (ii) proteinprotein (DNA or RNA) electrostatic interaction energy and (iii) pKa of a selected titratable residue. All the calculations can be performed in both aqueous solvent and membrane environments (with a cylindrical pore in the case of membrane). PBEQ-Solver uses the PBEQ module in the biomolecular simulation program CHARMM to solve the finite-difference PB equation of molecules specified by users. Users can interactively inspect the calculated electrostatic potential on the solvent-accessible surface as well as iso-electrostatic potential contours using a novel online visualization tool based on MarvinSpace molecular visualization software, a Java applet integrated within CHARMM-GUI (http://www.charmm-gui.org). To reduce the computational time on the server, and to increase the efficiency in visualization, all the PB calculations are performed with coarse grid spacing (1.5 angstrom before and 1 angstrom after focusing). PBEQ-Solver suggests various physical parameters for PB calculations and users can modify them if necessary. PBEQ-Solver is available at http://www.charmm-gui.org/input/pbeqsolver.
Year
DOI
Venue
2008
10.1093/nar/gkn314
NUCLEIC ACIDS RESEARCH
Keywords
Field
DocType
focusing. pbeq-solver suggests various physical parameters for pb calculations and users can modify them if necessary. pbeq-solver is available at http:// www.charmm-gui.org/input/pbeqsolver.,electrostatic potential,rna,dna,poisson boltzmann,graphic user interface,interactive visualization,finite difference,computer graphics,java applet,static electricity,free energy,proteins,internet
Electrostatics,Biology,Visualization,Graphical user interface,Software,Computational science,Solvation,Solver,Java applet,Genetics,Software visualization
Journal
Volume
Issue
ISSN
36
Web Server issue
0305-1048
Citations 
PageRank 
References 
11
0.84
14
Authors
5
Name
Order
Citations
PageRank
Sunhwan Jo113413.08
Miklos Vargyas2131.21
Judit Vasko-Szedlar3110.84
Benoît Roux4110.84
Wonpil Im516317.39