Contents 
349 Molecular Neuroimmunology 
Donald G. Payan, M.D. 
351 Molecular Basis of Lymphocyte Signaling 
Roger M. Perlmutter, M.D., Ph.D. 
353 Signal Transduction and the Specification of Cell Fates 
Norbert Perrimon, Ph.D. 
355 Gene Regulation and Immunodeficiency 
B. Matija Peterlin, M.D. 
357 Mechanism of Action of Polypeptide Growth Factors 
Linda J. Pike, Ph.D. 
361 Protein Structures, Molecular Recognitions, and Functions 
Florante A. Quiocho, Ph.D. 
363 Molecular Mechanisms of Olfaction 
Randall R. Reed, Ph.D. 
365 The Molecular Basis of Hereditary Diseases of the Kidney 
Stephen T. Reeders, M.D. 
367 Extracellular Factors Affecting Neuron Development 
Louis F. Reichardt, Ph.D. 
369 T Lymphocyte Biology and Genetics 
Robert R. Rich, M.D. 
371 Molecular Genetics of RNA Processing and Behavior 
Michael Rosbash, Ph.D. 
373 Determinants of Developmental Programs of Gene Activation 
Michael G. Rosenfeld, M.D. 
375 Development of the Drosophila Visual System 
Gerald M. Rubin, Ph.D. 
377 The Regulation of Blood Coagulation 
J. Evan Sadler, M.D., Ph.D. 
379 Molecular Genetics of Development in Drosophila 
Shigeru Sakonju, Ph.D. 
381 Intracellular Transport of Proteins 
Randy W. Schekman, Ph.D. 
385 Development and Function of the Synapse 
Richard H. Scheller, Ph.D. 
387 Molecular Pathogenicity Studies of Enteric Bacteria 
Gary K. Schoolnik, M.D. 
