About the Authors

Sarah K. Petruno

Affiliation Division of Biological Sciences, University of California San Diego, La Jolla, California, United States of America

Robert E. Clark

Affiliation Veterans Affairs Medical Center, University of California San Diego, La Jolla, California, United States of America

Pamela Reinagel

preinagel@ucsd.edu

Affiliation Division of Biological Sciences, University of California San Diego, La Jolla, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PR. Performed the experiments: SKP REC. Analyzed the data: PR. Contributed reagents/materials/analysis tools: PR REC. Wrote the paper: PR.