1. School of Public Health, Division of Infectious Diseases and Vaccinology, University of California, Berkeley, Berkeley, California 94720, United States
2. Department of Molecular and Cell Biology, Division of Immunology and Pathogenesis, University of California, Berkeley, Berkeley, California 94720, United States
3. The Henry Wheeler Center for Emerging and Neglected Diseases, 344 Li Ka Shing, Berkeley, California 94720, United States
4. Department of Molecular and Cell Biology, Division of Biochemistry, Biophysics and Structural Biology, University of California, Berkeley, Berkeley, California 94720, United States
5. Departments of Chemistry, Molecular and Cell Biology, and Nutritional Sciences and Toxicology, University of California, Berkeley, Berkeley, California 94720, United States
6. Department of Bioengineering, University of California, Berkeley, Berkeley, California 94720, United States
7. Novartis Institutes for BioMedical Research, Emeryville, California 94608, United States
8. QBI Coronavirus Research Group Structural Biology Consortium, University of California, San Francisco, California 94158, United States
9. Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, California 94158, United States
10. Department of Medicine, Medical Scientist Training Program, Biomedical Sciences Graduate Program, University of California, San Francisco, San Francisco, California 94143, United States
11. J. David Gladstone Institutes, San Francisco, California 94158, United States
12. Innovative Genomics Institute (IGI), 2151 Berkeley Way, Berkeley, California 94704, United States