About the Authors
Molecular and Computational Biology, University of Southern California, Los Angeles, California, United States of America
Chemistry Department, University of Southern California, Los Angeles, California, United States of America
Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, Texas, United States of America
Department of Bioengineering, Rice University, Houston, Texas, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: YS HL DG JM XSC. Performed the experiments: YS. Analyzed the data: YS HL DG XSC. Contributed reagents/materials/analysis tools: YS HL XSC. Wrote the paper: YS HL JM XSC.