Institution: | 1. Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA;2. National Resource for Automated Molecular Microscopy, Simons Electron Microscopy Center, New York Structural Biology Center, New York, NY 10027, USA;3. Department of Biochemistry and Molecular Biophysics & Zuckerman Mind Brain Behavior Institute, Columbia University, New York, NY 10032, USA |