1. Bioinformatics Program, Medical Scientist Training Program, Center for Theoretical Biological Physics, Department of Chemistry and Biochemistry, and Department of Pharmacology, UC San Diego, La Jolla, California 92093-0365, Department of Chemistry and Center for Structural Biology, Stony Brook University, Stony Brook, New York 11794-3400, Howard Hughes Medical Institute, Department of Molecular Biology, The Scripps Research Institute, La Jolla, California 92037, and Departments of Computer Science and...