About the Authors

Qi Wang

Affiliations Department of Chemistry, Brandeis University, Waltham, Massachusetts, United States of America , Volen Center, Brandeis University, Waltham, Massachusetts, United States of America

Joshua L Johnson

Affiliations Volen Center, Brandeis University, Waltham, Massachusetts, United States of America , Department of Biochemistry, Brandeis University, Waltham, Massachusetts, United States of America

Nathalie Y.R Agar

Affiliation Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America

Jeffrey N Agar

To whom correspondence should be addressed. E-mail: agar@brandeis.edu

Affiliations Department of Chemistry, Brandeis University, Waltham, Massachusetts, United States of America , Volen Center, Brandeis University, Waltham, Massachusetts, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

JNA and NYRA conceived the hypotheses. QW and JNA designed the analysis. QW, JLJ, and JNA performed the analysis. QW and JNA wrote the paper.