About the Authors

James A. Gagnon

james.gagnon@gmail.com (JAG); schier@fas.harvard.edu (AFS)

Affiliation Department of Molecular and Cellular Biology, Harvard University, Cambridge, Massachusetts, United States of America

Eivind Valen

Affiliation Department of Molecular and Cellular Biology, Harvard University, Cambridge, Massachusetts, United States of America

Summer B. Thyme

Affiliation Department of Molecular and Cellular Biology, Harvard University, Cambridge, Massachusetts, United States of America

Peng Huang

Affiliations Department of Molecular and Cellular Biology, Harvard University, Cambridge, Massachusetts, United States of America, Department of Biochemistry and Molecular Biology, University of Calgary, Calgary, Alberta, Canada

Laila Ahkmetova

Affiliation Department of Molecular and Cellular Biology, Harvard University, Cambridge, Massachusetts, United States of America

Andrea Pauli

Affiliation Department of Molecular and Cellular Biology, Harvard University, Cambridge, Massachusetts, United States of America

Tessa G. Montague

Affiliation Department of Molecular and Cellular Biology, Harvard University, Cambridge, Massachusetts, United States of America

Steven Zimmerman

Affiliation Department of Molecular and Cellular Biology, Harvard University, Cambridge, Massachusetts, United States of America

Constance Richter

Affiliation Department of Molecular and Cellular Biology, Harvard University, Cambridge, Massachusetts, United States of America

Alexander F. Schier

james.gagnon@gmail.com (JAG); schier@fas.harvard.edu (AFS)

Affiliations Department of Molecular and Cellular Biology, Harvard University, Cambridge, Massachusetts, United States of America, Center for Brain Science, Harvard University, Cambridge, Massachusetts, United States of America, Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, Massachusetts, United States of America, Harvard Stem Cell Institute, Harvard University, Cambridge, Massachusetts, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JAG EV SBT PH LA AP AFS. Performed the experiments: JAG SBT PH LA AP SZ CR. Analyzed the data: JAG EV SBT PH LA AP TGM AFS. Contributed reagents/materials/analysis tools: EV TGM. Contributed to the writing of the manuscript: JAG EV SBT AFS.