About the Authors

Yu-Dong Cai

Contributed equally to this work with: Yu-Dong Cai, Tao Huang

cai_yud@yahoo.com.cn (YDC); xielu@scbit.org (LX)

Affiliations Institute of Systems Biology, Shanghai University, Shanghai, People's Republic of China, Centre for Computational Systems Biology, Fudan University, Shanghai, People's Republic of China

Tao Huang

Contributed equally to this work with: Yu-Dong Cai, Tao Huang

Affiliations Key Laboratory of Systems Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, People's Republic of China, Shanghai Center for Bioinformation Technology, Shanghai, People's Republic of China

Kai-Yan Feng

Affiliation Shanghai Center for Bioinformation Technology, Shanghai, People's Republic of China

Lele Hu

Affiliation Institute of Systems Biology, Shanghai University, Shanghai, People's Republic of China

Lu Xie

cai_yud@yahoo.com.cn (YDC); xielu@scbit.org (LX)

Affiliation Shanghai Center for Bioinformation Technology, Shanghai, People's Republic of China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YDC. Performed the experiments: TH. Analyzed the data: TH. Contributed reagents/materials/analysis tools: LH. Wrote the paper: TH KYF LX.