About the Authors

Qun Wang

Affiliation Dept. of Infectious Disease and Vaccines, MedImmune, Gaithersburg, MD, United States of America

Yan Chen

Affiliation Dept. of Antibody Discovery and Protein Engineering, MedImmune, Gaithersburg, MD, United States of America

Romana Cvitkovic

Affiliation Dept. of Infectious Disease and Vaccines, MedImmune, Gaithersburg, MD, United States of America

Meghan E. Pennini

Affiliation Dept. of Infectious Disease and Vaccines, MedImmune, Gaithersburg, MD, United States of America

Chew shun Chang

Affiliation Dept. of Antibody Discovery and Protein Engineering, MedImmune, Gaithersburg, MD, United States of America

Mark Pelletier

Affiliation Dept. of Infectious Disease and Vaccines, MedImmune, Gaithersburg, MD, United States of America

Jessica Bonnell

Affiliation Dept. of Infectious Disease and Vaccines, MedImmune, Gaithersburg, MD, United States of America

Adem C. Koksal

Affiliation Dept. of Antibody Discovery and Protein Engineering, MedImmune, Gaithersburg, MD, United States of America

Herren Wu

Affiliation Dept. of Antibody Discovery and Protein Engineering, MedImmune, Gaithersburg, MD, United States of America

William F. Dall’Acqua

Affiliation Dept. of Antibody Discovery and Protein Engineering, MedImmune, Gaithersburg, MD, United States of America

C. Kendall Stover

Affiliation Dept. of Infectious Disease and Vaccines, MedImmune, Gaithersburg, MD, United States of America

Xiaodong Xiao

xiaox@medimmune.com

Affiliation Dept. of Antibody Discovery and Protein Engineering, MedImmune, Gaithersburg, MD, United States of America

Competing Interests

The authors declare conflict of interest as a provisional patent application related to this finding has been filed (MRKA POLYPEPTIDES, ANTIBODIES, AND USES THEREOF, United States application number 15/244,960). This does not alter the authors' adherence to PLoS One policies on sharing data and materials that are disclosed in the manuscript.

Author Contributions

Conceptualization: QW XX. Investigation: QW YC RC MEP MP CSC JB ACK. Supervision: CKS WFD HW. Writing – original draft: QW XX.