MACMOLECULAR - A PROGRAM FOR VISUALIZATION OF MOLECULAR-STRUCTURES ONTHE MACINTOSH

MacMolecular displays small- to medium-sized biomolecules, with partic ular emphasis on peptides. L has been developed to run on color Macint osh computers. The display can be stick, ball and stick, depth cued by thickness stick, or several types of space-filling representations. T he program takes input from standard PDB files, simple Cartesian coord inate files, and, in addition, from Kinemage files in which atom infor mation has been included. The program allows color changes of various types as well as the normal functions of translation, rotation, and zo oming. In addition, animation files may be produced for subsequent dis play. Bonding of atoms is done by a distance algorithm (standard) or s equentially to properly display C alpha traces and traces of peptides containing simplified representations of amino acids. Stereo viewing i s available, and manipulated structures which were drawn from PDB file s can be written out to new PDB files. In addition, PICT files of the drawing window can be generated.