Affiliation: | 1 Department of Pharmacology, University of Colorado Denver School of Medicine, 12801 East 17th Avenue, Aurora, CO 80045-0511, USA 2 Department of Biological Sciences, Stanford University, Stanford, CA 94305, USA 3 Laboratory of Cell Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA 4 Molecular Biology Consortium, Advanced Light Source Beamline 4.2.2, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA |