About the Authors

André P Gerber

Affiliation Department of Biochemistry, Stanford University School of Medicine, Stanford, California, United States of America

Daniel Herschlag

To whom correspondence should be addressed. E-mail: herschla@cmgm.stanford.edu (DH), Email: pbrown@cmgm.stanford.edu (PB)

Affiliation Department of Biochemistry, Stanford University School of Medicine, Stanford, California, United States of America

Patrick O Brown

To whom correspondence should be addressed. E-mail: herschla@cmgm.stanford.edu (DH), Email: pbrown@cmgm.stanford.edu (PB)

Affiliations Department of Biochemistry, Stanford University School of Medicine, Stanford, California, United States of America, Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, California, United States of America

Competing Interests

The authors have declared that no conflicts of interest exist.

Author Contributions

APG, DH, and POB conceived and designed the experiments. APG performed the experiments. APG, DH, and POB analyzed the data. APG, DH, and POB contributed reagents/materials/analysis tools. APG, DH, and POB wrote the paper.