1. Department of Biology, McGill University, Montreal, Quebec H3A 1B1, Canada.
2. Laboratory for Therapeutic Development, Rosalind and Morris Goodman Cancer Research Centre and Department of Biochemistry, McGill University, Montreal, Quebec H3G 1Y6, Canada.
3. Laboratory of Biomolecular Research, Department of Biology and Chemistry, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland.
4. McGill SPR-MS Facility, McGill University, Montreal, Quebec H3G 1Y6, Canada.
5. Department of Neuroscience, Albert Einstein College of Medicine, Bronx, NY 10561, USA.
6. Department of Pharmacology, UT Southwestern Medical Center, Dallas, TX 75390, USA.
7. Rosalind and Morris Goodman Cancer Research Centre, McGill University, Montreal, Quebec H3A 1A3, Canada.
8. Research Institute of the McGill University Health Centre, Montreal, Quebec H4A 3J1, Canada.
9. Department of Chemistry and Biochemistry, University of California at Los Angeles, Los Angeles, CA 90095, USA.