THIS INFORMATION IS OBSOLETE AND IS PROVIDED ONLY FOR ITS HISTORICAL VALUE

XVIEW may be used to display proteins from the Brookhaven Protein Databank. The atomic coordinates are represented as two-byte integers, thus enabling the program to display proteins with a maximum diameter of 130Å, up to 600 bases or 4500 nonhydrogen atoms. Also included is program XCRD, which is used to convert the Brookhaven Databank files into the format employed by the program.

XVIEW will display the main alpha carbon backbone as well as the backbone plus side chains. It will also display space-filled spheres, hydrogen bonds, active sites, S-S bonds and hydrophobic/hydrophilic bases. Further, the program will rotate the structure to allow viewing from various angles; a zoom option is included.

The minimum recommended system requirements are an IBM PC/XT/AT with 640 Kb RAM and EGA or VGA graphics. (While the program will run on CGA, the number of atoms which can be displayed is limited; thus, CGA is not recommended.) The computer should also have a math coprocessor.The software was compiled using Borland Turbo Pascal 4.0. To use later versions of the compiler, the graphics drivers (*.BGI files) should be replaced by those supplied with the compiler.

Borland Turbo Pascal (v. 4.0 or later) Lines of Code: 5634