Affiliation: | 1. Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA;2. Program in Molecular Medicine and Program in Cell Dynamics, University of Massachusetts Medical School, Worcester, MA 01605, USA;3. Department of Chemical Physiology, The Scripps Research Institute, La Jolla, CA 92037, USA;4. HHMI and Department of Molecular and Cell Biology, University of California at Berkeley, Berkeley, CA 94720, USA |