About the Authors
Division of Cell and Molecular Biology, Department of Life Sciences, Imperial College London, London, United Kingdom
Health Sciences and Technology, Harvard/Massachusetts Institute of Technology (MIT), Cambridge, Massachusetts, United States of America
Whitehead Institute for Biomedical Research, Cambridge, Massachusetts, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: RRW SM EP KA-T. Performed the experiments: RRW. Analyzed the data: RRW SM EP ES KA-T. Contributed reagents/materials/analysis tools: KAT KG MES. Wrote the paper: RRW KA-T.