1. Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
2. Department of Molecular Biology & Biochemistry, University of California, Irvine, Irvine, California 92697, United States
3. Department of Chemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
4. Departments of Chemistry and Molecular Biology & Biochemistry, University of California, Irvine, Irvine, California 92697, United States
5. Departments of Sociology, Statistics, Computer Science, and EECS, University of California, Irvine, Irvine, California 92697, United States