About the Authors

Jennifer C. Shieh

Affiliations Department of Biology, Stanford University, Stanford, California, United States of America, Program in Neuroscience, Stanford University, Stanford, California, United States of America

Bruce T. Schaar

Affiliation Department of Developmental Biology, Stanford University, Stanford, California, United States of America

Karpagam Srinivasan

Affiliation Department of Biology, Stanford University, Stanford, California, United States of America

Frances M. Brodsky

Affiliation Departments of Bioengineering and Therapeutic Sciences, Pharmaceutical Chemistry, and Microbiology and Immunology, University of California San Francisco, San Francisco, California, United States of America

Susan K. McConnell

suemcc@stanford.edu

Affiliation Department of Biology, Stanford University, Stanford, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JCS BTS FMB SKM. Performed the experiments: JCS BTS KS. Analyzed the data: JCS. Contributed reagents/materials/analysis tools: JCS BTS KS FMB. Wrote the paper: JCS SKM.