About the Authors

Chad K. Park

Affiliation Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona, United States of America

Hemant K. Joshi

Address Current address: Boehringer Ingelheim, St. Joseph, Missouri, United States of America

Affiliation Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona, United States of America

Alka Agrawal

Affiliation New England Biolabs Inc., Ipswich, Massachusetts, United States of America

M. Imran Ghare

Affiliation Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona, United States of America

Elizabeth J. Little

Address Current address: Ventana Medical Systems, Tucson, Arizona, United States of America

Affiliation Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona, United States of America

Pete W. Dunten

Affiliation Stanford Synchrotron Radiation Laboratory, Stanford University, Menlo Park, California, United States of America

Jurate Bitinaite

Affiliation New England Biolabs Inc., Ipswich, Massachusetts, United States of America

Nancy C. Horton

nhorton@u.arizona.edu

Affiliation Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

The author(s) have made the following declarations about their contributions: Conceived and designed the experiments: CKP AA JB NH. Performed the experiments: CKP HKJ AA MIG NH. Analyzed the data: CKP MIG PWD NH. Contributed reagents/materials/analysis tools: CKP AA EJL JB NH. Wrote the paper: CKP JB NH.