1. Beth Israel Deaconess Medical Center, Department of Medicine-Division of Signal Transduction, Boston, MA 02115, USA.
2. Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA.
3. Department of Medicine, Harvard Medical School, Boston, MA 02115, USA.
4. NIH Chemical Genomics Center, National Human Genome Research Institute, National Institutes of Health, 9800 Medical Center Drive, Rockville, MD 20850, USA.
5. Koch Institute for Integrative Cancer Research at Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
6. Dana Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA.