1. Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, CA 90095, USA
2. Current Address: Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
3. Current Address: Keck School of Medicine, University of Southern California, Los Angeles, CA 90095, USA
4. Molecular Biology Interdepartmental Program, University of California, Los Angeles, CA 90095, USA
5. Division of Hematology-Oncology, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
6. Current Address: Division of Cardiac Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
7. Department of Urology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
8. Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, CA 90095, USA
9. Jonsson Comprehensive Cancer Center, University of California, Los Angeles, CA 90095, USA
10. Molecular Biology Institute, University of California, Los Angeles, CA 90095, USA