About the Authors

Trisha J Brock

Affiliation Institute of Biological Chemistry, Washington State University, Pullman, Washington, United States of America

John Browse

Affiliation Institute of Biological Chemistry, Washington State University, Pullman, Washington, United States of America

Jennifer L Watts

To whom correspondence should be addressed. E-mail: jwatts@mail.wsu.edu

Affiliation Institute of Biological Chemistry, Washington State University, Pullman, Washington, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

TJB, JB, and JLW conceived and designed the experiments. TB performed the experiments and analyzed the data. TJB, JB, and JLW wrote the paper.