About the Authors

Xing Xu

Affiliation Department of Genetics, Washington University School of Medicine, St. Louis, Missouri, United States of America

Yongmei Ji

Current address: Rosetta Inpharmatics, a wholly owned subsidiary of Merck & Co., Seattle, Washington, United States of America

Affiliation Department of Genetics, Washington University School of Medicine, St. Louis, Missouri, United States of America

Gary D. Stormo

stormo@genetics.wustl.edu

Affiliation Department of Genetics, Washington University School of Medicine, St. Louis, Missouri, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: XX YJ GDS. Performed the experiments: XX YJ. Analyzed the data: XX YJ GDS. Contributed reagents/materials/analysis tools: XX YJ GDS. Wrote the paper: XX YJ GDS.