About the Authors

Mario Meng-Chiang Kuo

Affiliation Structural Biology Laboratory, The Salk Institute, La Jolla, California, United States of America

Innokentiy Maslennikov

Affiliation Structural Biology Laboratory, The Salk Institute, La Jolla, California, United States of America

Brent Molden

Affiliation Structural Biology Laboratory, The Salk Institute, La Jolla, California, United States of America

Senyon Choe

To whom correspondence should be addressed. E-mail: choe@salk.edu

Affiliation Structural Biology Laboratory, The Salk Institute, La Jolla, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

MM-CK, IM, and SC conceived and designed the experiments. MM-CK, IM, and BM performed the experiments. MM-CK, IM, and SC analyzed the data. MM-CK, IM, and SC wrote the paper.