1. Contribution from the Departments of Chemistry, Molecular, Cellular, and Developmental
Biology, and Pharmacology, Yale University, New Haven, Connecticut 06520-8103,
Division of Biology and Howard Hughes Medical Institute, California Institute of Technology,
Pasadena, California 91125, Department of Pediatrics and Pathology, Mattel Children's
Hospital, David Geffen School of Medicine at UCLA, Gwynn Hazen Cherry Memorial
Laboratories, Molecular Biology Institute, and Jonsson Comprehensive Cancer Center,...