1. Department of Chemistry, University of Washington, Seattle, Washington, United
States
2. Seattle Biomedical Research Institute, Seattle, Washington, United States
3. Department of Biochemistry, University of Washington, Seattle, Washington, United
States
4. Department of Medicine,
Division
of Allergy and Infectious Diseases, University of Washington, Seattle, Washington, United States
5. Department of Global Health, University of Washington, Seattle, Washington, United
States