About the Authors

Kenichi Yuasa

Affiliation Department of Life Sciences, The University of Tokyo, Tokyo, Japan

Yuko Yotsumoto

cyuko@mail.ecc.u-tokyo.ac.jp

Affiliation Department of Life Sciences, The University of Tokyo, Tokyo, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KY YY. Performed the experiments: KY. Analyzed the data: KY YY. Contributed reagents/materials/analysis tools: KY YY. Wrote the paper: KY YY.