1. Department of Pathology, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts 02115,
United States
2. Whitehead Institute for Biomedical Research, Cambridge, Massachusetts 02142,
United States
3. SW Center for
Natural Products
Research and Commercialization, School of Natural Resources and the
Environment, College of Agriculture and Life Sciences, The University of Arizona, Tucson, Arizona 85706,
United States
4. Department
of Biological Chemistry
and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02115, United States
5. Department of Medical Oncology, Dana−Farber Cancer Institute, Boston, Massachusetts
02115, United States
6. Howard Hughes
Medical Institute, Department
of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02142, United States
7. Moores UCSD Cancer Center, University of California, San Diego, La Jolla, California
92093, United States