About the Authors

Sophia W. Li

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Visualization, Writing – original draft, Writing – review & editing

sli140@ucsc.edu

Affiliations Department of Chemistry and Biochemistry, University of California Santa Cruz, Santa Cruz, California, United States of America, Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, California, United States of America

Meredith Wright

Roles Investigation, Methodology

Affiliation Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, California, United States of America

John F. Healey

Roles Formal analysis, Investigation, Methodology, Resources, Validation

Affiliation Department of Pediatrics, Emory University, Atlanta, Georgia, United States of America

Jennie M. Hutchinson

Roles Formal analysis, Investigation, Methodology

Affiliation Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, California, United States of America

Sara O’Rourke

Roles Investigation, Methodology

Affiliation Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, California, United States of America

Kathryn A. Mesa

Roles Investigation

Affiliation Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, California, United States of America

Pete Lollar

Roles Formal analysis, Investigation, Methodology, Supervision, Visualization

Affiliation Department of Pediatrics, Emory University, Atlanta, Georgia, United States of America

Phillip W. Berman

Roles Conceptualization, Supervision, Writing – review & editing

Affiliation Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, California, United States of America

Competing Interests

Sophia W. Li and Phillip W. Berman have filed a patent on C1s‐deficient cells for the production of vaccines and biopharmaceutical proteins. The patent is entitled “Complement Component 1s (C1s) Deficient Cells for Production of Vaccines and Biopharmaceutical Proteins” with publication Number WO/2020/081328. This does not alter our adherence to PLOS ONE policies on sharing data and materials.