1. Department of Neuroscience, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, USA.
2. Antibody Engineering, Genentech Inc., South San Francisco, CA 94080, USA.
3. Protein Chemistry, Genentech Inc., South San Francisco, CA 94080, USA.
4. Development Sciences, Genentech Inc., South San Francisco, CA 94080, USA.
5. Biochemical and Cellular Pharmacology, Genentech Inc., South San Francisco, CA 94080, USA.