1. Molecular Biology Institute, University of California, Los Angeles, Los Angeles, California, USA; University of California, Los Angeles, Los Angeles, California, USA.
2. Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, New York, USA; University of California, Los Angeles, Los Angeles, California, USA.
3. Department of Pediatrics, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, California, USA; Departments of University of California, Los Angeles, Los Angeles, California, USA.
4. Bioengineering, University of California, Los Angeles, Los Angeles, California, USA.
5. Molecular, Cell, and Developmental Biology, University of California, Los Angeles, Los Angeles, California, USA.
6. Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, California, USA.
7. Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, California, USA; University of California, Los Angeles, Los Angeles, California, USA.
8. The Eli & Edith Broad Center of Regenerative Medicine & Stem Cell Research, University of California, Los Angeles, Los Angeles, California, USA.