PSF
http://edamontology.org/format_3882
X-Plor Protein Structure Files (PSF) are structure topology files used by NAMD and CHARMM molecular simulations programs. PSF files contain six main sections of interest: atoms, bonds, angles, dihedrals, improper dihedrals (force terms used to maintain planarity) and cross-terms.
Term info
Subsets
formats, edam
Created in
1.22
Documentation
http://www.ks.uiuc.edu/Training/TutorialsOverview/namd/namd-tutorial-unix-html/node23.html
comment
The high similarity in the functional form of the two potential energy functions used by AMBER and CHARMM force-fields gives rise to the possible use of one force-field within the other MD engine. Therefore, the conversion of PSF files to AMBER Prmtop format is possible with the use of AMBER chamber (CHARMM - AMBER) program.