1. Department
of Medical Oncology, Dana-Farber Cancer Institute, 450 Brookline
Avenue, Boston, Massachusetts 02215, United States
2. Department
of Chemistry, University of Massachusetts Boston, 100 Morrissey
Boulevard, Boston, Massachusetts 02125, United States
3. Department
of Cancer Biology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, Massachusetts 02215, United States
4. Department
of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, 45 Shattuck Street, Boston, Massachusetts 02115, United States
5. Department
of Medicine, Harvard Medical School, 200 Longwood Avenue, Boston, Massachusetts 02115, United States