About the Authors

Elvira Valera

Affiliations Structural Biology Laboratory, Salk Institute, La Jolla, California, United States of America, Joint Center for Biosciences, Incheon, Korea

Michael J. Isaacs

Affiliation Joint Center for Biosciences, Incheon, Korea

Yasuhiko Kawakami

Current address: Stem Cell Institute and Department of Genetics, Cell Biology and Development, McGuire Translational Research Facility, University of Minnesota, Minneapolis, Minnesota, United States of America

Affiliation Gene Expression Laboratory, Salk Institute, La Jolla, California, United States of America

Juan Carlos Izpisúa Belmonte

Affiliation Gene Expression Laboratory, Salk Institute, La Jolla, California, United States of America

Senyon Choe

choe@salk.edu

Affiliations Structural Biology Laboratory, Salk Institute, La Jolla, California, United States of America, Joint Center for Biosciences, Incheon, Korea

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: EV MJI YK JCIB SC. Performed the experiments: EV YK. Analyzed the data: EV YK. Contributed reagents/materials/analysis tools: MJI JCIB SC. Wrote the paper: EV. Revision of the article and final approval of the version to be published: MJI YK JCIB SC.