About the Authors

Ruipeng Wang

Affiliation Structural Immunology Section, Laboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, Maryland, United States of America

Peter D. Sun

psun@nih.gov

Affiliation Structural Immunology Section, Laboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, Maryland, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RW PS. Performed the experiments: RW. Analyzed the data: RW PS. Wrote the paper: RW PS.