1. Department
of Cancer Biology, Dana-Farber Cancer Institute, Boston, Massachusetts
02115, United States
2. Department of Biological Chemistry & Molecular Pharmacology, Harvard Medical School, 250 Longwood Avenue, SGM 628, Boston, Massachusetts 02115, United States
3. MRC Protein Phosphorylation
Unit,
College of Life Sciences, University of Dundee, Dow Street, Dundee DD1 5EH, Scotland, United Kingdom
4. ActivX Biosciences, 11025 North Torrey Pines Road, La Jolla, California 92037, United
States
5. High Magnetic Field
Laboratory, Chinese Academy of Science,
P.O. Box 1110, Hefei, Anhui,
230031, People's Republic of China