About the Authors

Amanda J Mikels

Affiliations Department of Developmental Biology, Stanford University School of Medicine, Stanford, California, United States of America , Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, California, United States of America

Roel Nusse

To whom correspondence should be addressed. E-mail: rnusse@stanford.edu

Affiliations Department of Developmental Biology, Stanford University School of Medicine, Stanford, California, United States of America , Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

AJM and RN conceived and designed the experiments. AJM performed the experiments. AJM and RN analyzed the data. AJM and RN contributed reagents/materials/analysis tools. AJM and RN wrote the paper.