Exons: Relevant bits of information for using the MUSC Shared Resource, the BioMolecular Computing Resource (BCR). Exon_23 DockVision at MUSC. 1) Running DockVision from other than a Workstation will require that you have x-server software on the PC or workstation. 2) Running DockVision at MUSC will require that you add a line to your ".cshrc" file. That line should read: source /usr/common/bcr/DockVision/startup.csh 3) After you have added this line to your .cshrc file, then you can type " source .cshrc" or logout and then login again. At this point your unix environment will be properly set up. Then you need merely to type DockVision An x-terminal window will open and you may commence setting up a docking run. 4) The window that appears has a series of red filled or bordered rectangles. As you supply appropriate information, the red fields will change to green. You begin by supplying a run name and then selecting ligand and target molecules. 5) DockVision reads PDB format 'target' and 'ligand' files. The program is fairly tolerant of various PDB file variants but you may have to fix up your PDB file to make it palatable to DockVision. 6) The Ligand, Target, Flexibility, Grid, Options and Research rectangles all open interactive windows where you supply information to configure the program for running. When you start its best to just use the Research Potential Function. 7) Under the MODE menu you can select various operating modes for DockVision and several utility programs and job control features. DockVision can run a Monte-Carlo docking procedure (RESEARCH), a genetic algorithm docking procedure (GAMMA),and a database search program (RSDB). The TOOLS mode opens a window with access to several set-up and analysis tools. 8) By selecting the "next" button in the lower right of the Dockvision window you can sequentially provide the information required for a DockVision analysis. Entering a run Name,selecting a ligand and then a target and a Potential Function completes the first page. The next button opens a new window. 9) The ligand may either be flexible of rigid. 10) The options button opens a new window showing that a CONSTRAINT file and a Schedule file must be read(load) or configured (built). For starting, a constriant centered at 0,0,0 and a radius of 5-50 Angstroms is useful. The default Schedule settings are a useful start as well. Both may be refined for more thorough searches in particular regions. 11) When DockVision has all the information it needs, pressing the run button initiates the docking. The calculation of the GRID and computation of conformations for flexible ligand conformations can be time-consuming. Once the GRID and conformations have been calculated, Dockvision can quickly be reset to evaluate various run parameters.