About the Authors

Joshua S. Klein

jsklein@caltech.edu (JK); bjorkman@caltech.edu (PB)

Affiliation Division of Biology, California Institute of Technology, Pasadena, California, United States of America

Pamela J. Bjorkman

jsklein@caltech.edu (JK); bjorkman@caltech.edu (PB)

Affiliations Division of Biology, California Institute of Technology, Pasadena, California, United States of America, Howard Hughes Medical Institute, California Institute of Technology, Pasadena, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.