About the Authors

Talitha van der Meulen

Affiliation Peptide Biology Laboratories, The Salk Institute for Biological Studies, La Jolla, California, United States of America

Ruiyu Xie

Affiliation Department of Pediatrics and Cellular and Molecular Medicine, University of California San Diego, La Jolla, California, United States of America

Olivia G. Kelly

Affiliation ViaCyte, Inc., San Diego, California, United States of America

Wylie W. Vale

Affiliation Peptide Biology Laboratories, The Salk Institute for Biological Studies, La Jolla, California, United States of America

Maike Sander

Affiliation Department of Pediatrics and Cellular and Molecular Medicine, University of California San Diego, La Jolla, California, United States of America

Mark O. Huising

huising@salk.edu

Affiliations Peptide Biology Laboratories, The Salk Institute for Biological Studies, La Jolla, California, United States of America, Salk Center for Nutritional Genomics, The Salk Institute for Biological Studies, La Jolla, California, United States of America

Competing Interests

The authors have read the journal's policy and have the following conflicts: OGK is an employee of Viacyte, receiving salary and/or stock options. The paper describes or references intellectual property owned by Viacyte. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials. The other authors declare that no competing interests exist.

Author Contributions

Conceived and designed the experiments: TvdM RX OGK WWV MS MOH. Performed the experiments: TvdM RX OGK MOH. Analyzed the data: TvdM RX OGK MS MOH. Contributed reagents/materials/analysis tools: RX OGK MS. Wrote the paper: MOH. Revised the manuscript: TvdM RX OGK MS.