About the Authors

Xia-Yu Xia

Affiliation Ministry of Education, The Key Laboratory of Bioinformatics, School of Life Sciences, Tsinghua University, Beijing, China

Meng Ge

Affiliation Ministry of Education, The Key Laboratory of Bioinformatics, School of Life Sciences, Tsinghua University, Beijing, China

Zhi-Xin Wang

Affiliation Ministry of Education, The Key Laboratory of Bioinformatics, School of Life Sciences, Tsinghua University, Beijing, China

Xian-Ming Pan

pan-xm@mail.tsinghua.edu.cn

Affiliation Ministry of Education, The Key Laboratory of Bioinformatics, School of Life Sciences, Tsinghua University, Beijing, China

Competing Interests

The authors have declared that no conflict of interest exists.

Author Contributions

Conceived and designed the experiments: XMP. Performed the experiments: XYX. Analyzed the data: XYX. Contributed reagents/materials/analysis tools: XMP XYX. Wrote the paper: XMP XYX. Involved in data analysis and paper writing: MG. Involved in data analysis: ZXW.