1. Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Lab, Berkeley, California 94020, United States
2. Small Molecule Pharmaceutical Sciences, Genentech Inc., 1 DNA Way, South San Francisco, California 94080, United States
3. Department of Neuroscience, Genentech, Inc., South San Francisco, California 94080, United States
4. Chemistry and Biochemistry Department, University of California Santa Cruz, Santa Cruz, California 95064, United States