About the Authors

Elizabeth R Sprague, Pamela J Bjorkman
Division of Biology, California Institute of Technology, Pasadena, California, United States of America

Chu Wang, David Baker
Department of Biochemistry, University of Washington, Seattle, Washington, United States of America

David Baker
Howard Hughes Medical Institute, University of Washington, Seattle, Washington, United States of America

Pamela J Bjorkman
Howard Hughes Medical Institute, California Institute of Technology, Pasadena, California United States of America

Corresponding Author

bjorkman@caltech.edu

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

ERS and PJB conceived and designed the experiments. ERS and CW performed the experiments. CW and DB contributed reagents/materials/analysis tools. ERS, CW, DB, and PJB analyzed the data and wrote the paper.