About the Authors

Laurie K. Frankel

Affiliation Department of Biological Sciences, Division of Biochemistry and Molecular Biology, Louisiana State University, Baton Rouge, Louisiana, United States of America

Larry Sallans

Affiliation The Rieveschl Laboratories for Mass Spectrometry, Department of Chemistry, University of Cincinnati, Cincinnati, Ohio, United States of America

Patrick A. Limbach

Affiliation The Rieveschl Laboratories for Mass Spectrometry, Department of Chemistry, University of Cincinnati, Cincinnati, Ohio, United States of America

Terry M. Bricker

btbric@lsu.edu

Affiliation Department of Biological Sciences, Division of Biochemistry and Molecular Biology, Louisiana State University, Baton Rouge, Louisiana, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: LKF TMB. Performed the experiments: LKF LS. Analyzed the data: LKF TMB. Contributed reagents/materials/analysis tools: LKF TMB PAL. Wrote the paper: LKF TMB.