Affiliation: | 1. Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA 94143, USA;2. Department of Cellular and Molecular Pharmacology, University of California, San Francisco, San Francisco, CA 94143,USA;3. Howard Hughes Medical Institute, St. Louis, MO 63110, USA;4. The California Institute for Quantitative Biosciences, Berkeley, CA 94720, USA |