About the Authors

Xi Chen

Affiliation Department of Chemistry and Biochemistry, Center for Systems and Synthetic Biology, University of Texas at Austin, Austin, Texas, United States of America

Andrew D. Ellington

andy.ellington@mail.utexas.edu

Affiliation Department of Chemistry and Biochemistry, Center for Systems and Synthetic Biology, University of Texas at Austin, Austin, Texas, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Outlined the aims and methods of the study, built the mathematical model, performed the analyses, and drafted the manuscript: XC. Suggested some of the data analyses and comparisons and critically revised the manuscript: ADE.