About the Authors

Andrew M. Lippa

Affiliation Cell and Molecular Biology Graduate Group, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, United States of America

Mark Goulian

goulian@sas.upenn.edu

Affiliations Cell and Molecular Biology Graduate Group, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, United States of America, Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AML MG. Performed the experiments: AML. Analyzed the data: AML MG. Contributed reagents/materials/analysis tools: AML MG. Wrote the paper: AML MG.