Affiliation: | (1) Montreal Neurological Institute, McGill University, 3801 University Street, H3A 2B4 Montreal, Quebec, Canada;(2) Structural Biology Program, Department of Physiology and Biophysics, Mount Sinai School of Medicine, One Gustave L. Levy Place, 10029 New York, New York, USA;(3) Department of Protein Chemistry, Genentech. Inc., One DNA Way, 94080 San Francisco, California, USA |