1. Cold Spring Harbor Laboratory, Cold Spring Harbor, NY;
2. Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan;
3. Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston Children’s Hospital, Boston, MA;
4. Broad Institute of the Massachusetts Institute of Technology and Harvard University, Cambridge, MA;
5. Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA;
6. Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA;
7. Watson School of Biological Sciences, Cold Spring Harbor Laboratory, Cold Spring Harbor, NY; and
8. Division of Experimental Hematology and Cancer Biology, Cancer and Blood Disease Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH