About the Authors

Julia M Cox

Affiliation Department of Biochemistry, University of Wisconsin, Madison, Wisconsin, United States of America

Oleg V Tsodikov

address: Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts, United States of America

Affiliation Department of Biochemistry, University of Wisconsin, Madison, Wisconsin, United States of America

Michael M Cox

To whom correspondence should be addressed. E-mail: cox@biochem.wisc.edu

Affiliation Department of Biochemistry, University of Wisconsin, Madison, Wisconsin, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

JMC and MMC conceived and designed the experiments. JMC performed the experiments. JMC and OVT analyzed the data. OVT contributed reagents/materials/analysis tools. JMC and MMC wrote the paper.