About the Authors

Cui-Jun Zhang
Yong-Qiang Ning
Su-Wei Zhang
Qing Chen
Chang-Rong Shao
Yan-Wu Guo
Jin-Xing Zhou
Lin Li
She Chen
Xin-Jian He

hexinjian@nibs.ac.cn

Affiliation National Institute of Biological Sciences, Beijing, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: X-JH. Performed the experiments: C-JZ Y-QN S-WZ QC C-RS Y-WG J-XZ LL SC. Analyzed the data: C-JZ X-JH. Contributed reagents/materials/analysis tools: C-RS Y-WG J-XZ. Wrote the paper: C-JZ X-JH.