About the Authors
Department of Molecular Genetics and Microbiology, Duke University, Durham, North Carolina, United States of America
School of Biology and Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia, United States of America
Department of Biology, Tufts University, Medford, Massachusetts, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: WT ZH KSL HMK VN SMM TDP. Performed the experiments: WT MD PWG ZH HMK VN SMM. Analyzed the data: WT MD PWG ZH KSL SMM TDP. Contributed reagents/materials/analysis tools: WT KSL HMK. Wrote the paper: WT KSL SMM TDP.