About the Authors

Kathleen M. Averette

Affiliation Department of Microbiology, Immunology & Molecular Genetics, University of California Los Angeles, Los Angeles, California, United States of America

Matthew R. Pratt

Affiliation Laboratory of Synthetic Protein Chemistry, The Rockefeller University, New York, New York, United States of America

Yanan Yang

Affiliation Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, California, United States of America

Sara Bassilian

Affiliation The Pasarow Mass Spectrometry Laboratory, The NPI-Semel Institute, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California, United States of America

Julian P. Whitelegge

Affiliation The Pasarow Mass Spectrometry Laboratory, The NPI-Semel Institute, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California, United States of America

Joseph A. Loo

Affiliation Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, California, United States of America

Tom W. Muir

Affiliation Laboratory of Synthetic Protein Chemistry, The Rockefeller University, New York, New York, United States of America

Kenneth A. Bradley

kbradley@microbio.ucla.edu

Affiliation Department of Microbiology, Immunology & Molecular Genetics, University of California Los Angeles, Los Angeles, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KA MRP JPW JL TWM KAB. Performed the experiments: KA MRP YY. Analyzed the data: KA MRP YY SB KAB. Contributed reagents/materials/analysis tools: MRP JPW JL TWM KAB. Wrote the paper: KA KAB.