1. Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
2. Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, 02115, USA
3. Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan
4. Department of Molecular Biology, University of Bergen, Bergen 5020, Norway
5. Magnetic Resonance Spectroscopy NMR Application, Bruker BioSpin GmbH, 76287, Rheinstetten, Germany
6. Department of Biophysics and Biophysical Chemistry, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA