V. STRUCTURAL BIOLOGY 
Agard, David A., Ph.D., Associate Investigator 565 
University of California at San Francisco 
Structural Basis for Enzyme Specificity and Chromosome Structure 
Briinger, Axel T, Ph.D., Assistant Investigator 569 
Yale University 
Crystallographic Phasing and Refinement 
Deisenhofer, Johann, Ph.D., Investigator 573 
University of Texas Southwestern Medical Center at Dallas 
Three-dimensional Structures of Biological Macromolecules 
Yoi}L,KohertO.,'P\i..D., Assistant Investigator 577 
Yale University 
Biophysical Genetics of Protein Structure and Folding 
Harrison, Stephen C, Ph.D., Investigator 581 
Harvard University consortium: Harvard College 
Structural Studies of Viruses, Receptors, and Transcriptional Control Proteins 
Hendrickson, Wayne A., Ph.D., Investigator 585 
Columbia University College of Physicians and Surgeons 
Structural Studies on Biological Macromolecules 
MoiwhrsLy, Sherry \..,Vh..T>., Assistant Investigator 589 
University of Texas Southwestern Medical Center at Dallas 
Biochemical and Crystallographic Studies of Receptor and Membrane Proteins 
Pabo, Cari O., Ph.D., Associate Investigator 591 
The Johns Hopkins University School of Medicine 
Structural Studies of Gene Regulatory Proteins 
Quiocho, Florante A., Ph.D., Investigator 593 
Baylor College of Medicine 
Protein Structure and Function 
Sedat, John W., Ph.D., Investigator 597 
University of California at San Francisco 
Structure and Dynamics o/Drosophila Diploid Nuclei 
Sigler, Paul B., M.D., Ph.D., Investigator 601 
Yale University 
Chemical Mechanisms in Cellular Regulation 
Sprang, Stephen R., Ph.D., Assistant Investigator 605 
University of Texas Southwestern Medical Center at Dallas 
Structural Studies of Regulatory and Signal Transduction Proteins 
Steitz, Thomas A., Ph.D., Investigator 607 
Yale University 
Macromolecules of the Central Dogma of Molecular Biology 
WQey, Don C, Ph.D., Investigator 611 
Harvard University consortium: Harvard College 
Structural Molecular Biology 
559 
