1. Department of Chemistry, University of California, Berkeley, 2151 Berkeley Way, Room 312G, Berkeley, California 94720, United States
2. Innovative Genomics Institute, 2151 Berkeley Way, Berkeley, California 94720, United States
3. Bristol Myers Squibb, 700 Bay Road, Redwood City, California 94063, United States
4. Department of Molecular and Cell Biology, University of California, Berkeley, 2151 Berkeley Way, Room 312G, Berkeley, California 94720, United States