1. Molecular and Cell Biology Laboratory, Dulbecco Center for Cancer Research, Salk Institute for Biological Studies, La Jolla, CA 92037, USA.
2. Howard Hughes Medical Institute, Salk Institute for Biological Studies, La Jolla, CA 92037, USA.
3. Graduate School of Biomedical Sciences, Del E. Webb Neuroscience, Aging and Stem Cell Research Center, Sanford-Burnham Medical Research Institute, La Jolla, CA 92037, USA.
4. Department of Pathology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA.
5. Division of Signal Transduction, Beth Israel Deaconess Medical Center, and Department of Medicine, Harvard Medical School, Boston, MA 02115, USA.
6. Waitt Advanced Biophotonics Center, Salk Institute for Biological Studies, La Jolla, CA 92037, USA.
7. Inserm, U1016, Institut Cochin, Université Paris Descartes, CNRS (UMR 8104), Paris, France.