1. Department of Biological Chemistry and Department of Chemistry and Biochemistry, University of California Los Angeles (UCLA), Howard Hughes Medical Institute (HHMI), UCLA-DOE Institute for Genomics and Proteomics, Los Angeles, CA 90095, USA.
2. The Neuropsychiatric Institute (NPI)–Semel Institute for Neuroscience and Human Behavior, UCLA, Los Angeles, CA 90024, USA.
3. Department of Molecular Biology and Biochemistry, University of California, Irvine, CA 92697, USA.