About the Authors

Xiaolin Tu, Jianquan Chen, Joohyun Lim, Courtney M. Karner, Seung-Yon Lee, Fanxin Long
Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, United States of America

Julia Heisig, Cornelia Wiese, Manfred Gessler
Developmental Biochemistry, Biocentre, University of Wuerzburg, Wuerzburg, Germany

Kameswaran Surendran, Raphael Kopan, Fanxin Long
Department of Developmental Biology, Washington University School of Medicine, St. Louis, Missouri, United States of America

Corresponding Author

flong@wustl.edu

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: FL. Performed the experiments: XT JC JL CMK S-YL JH CW. Analyzed the data: XT FL. Contributed reagents/materials/analysis tools: KS RK MG. Wrote the paper: XT FL.