ANTHEPROT-2.0 - A 3-DIMENSIONAL MODULE FULLY COUPLED WITH PROTEIN-SEQUENCE ANALYSIS-METHODS

ANTHEPROT is a fully interactive graphics program devoted to the analy sis of the sequences and structures of proteins. This program, origina lly developed to facilitate the protein sequence analysis coupled with multiple alignments and predicted secondary structures of proteins,(1 ,2) now comprises a powerful 3D module to display and handle macromole cular structures. All the methods that were previously integrated into ANTHEPROT are now directly coupled with a 3D window that provides the user all the classic features of a molecular modeling package. Indeed , it allows real-time rotation and translation of 3D structures with m any kinds of models in depth-cueing mode (space filling, backbone, wir e models, main chain, and ribbons), selections (atom type, residue typ e, segments, and chain), color-coding systems (amino acid properties, predicted or observed secondary structures, temperature B factor, and subunits), geometric calculations (Ramachandran plot, distances, and a ngles), and fitting molecules. Stereo views are possible as well as HP GL standard files. A module specifically devoted to the determination of 3D structures using nuclear magnetic resonance is also available. T his major release of our program for IBM rs6000 workstations is availa ble by anonymous ftp to ibcp.fr for academic institutions.