About the Authors
Departments of Chemistry and Molecular Biophysics and Biochemistry, Yale University, New Haven, Connecticut, United States of America
Institute of Biomedical Sciences and Technology, University of Texas at Dallas, Richardson, Texas, United States of America
Department of Molecular and Cell Biology, University of Texas at Dallas, Richardson, Texas, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: DC SL YZ. Performed the experiments: SL YZ AM. Analyzed the data: SL YZ AM. Contributed reagents/materials/analysis tools: YZ. Wrote the paper: SL YZ.