About the Authors

Jynho Kim

Affiliations Departments of Biochemistry and Developmental Biology, Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, United States of America, Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA, United States of America

Elaine Y. C. Hsia

Affiliation Department of Anatomy and Regenerative Biology, George Washington University School of Medicine and Health Sciences, Washington, DC, United States of America

James Kim

Affiliations Departments of Biochemistry and Developmental Biology, Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, United States of America, Division of Hematology-Oncology, Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern, Dallas, TX, United States of America

Navdar Sever

Affiliations Departments of Biochemistry and Developmental Biology, Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, United States of America, Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA, United States of America

Philip A. Beachy

pbeachy@stanford.edu (PAB); xzheng@gwu.edu (XZ)

Affiliations Departments of Biochemistry and Developmental Biology, Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, United States of America, Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA, United States of America

Xiaoyan Zheng

pbeachy@stanford.edu (PAB); xzheng@gwu.edu (XZ)

Affiliations Departments of Biochemistry and Developmental Biology, Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, United States of America, Department of Anatomy and Regenerative Biology, George Washington University School of Medicine and Health Sciences, Washington, DC, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: XZ PB. Performed the experiments: XZ Jynho Kim EH James Kim NS. Analyzed the data: XZ EH. Contributed to the writing of the manuscript: XZ EH PB Jynho Kim NS.