About the Authors

Patrick Narbonne

Affiliations The Wellcome Trust/Cancer Research UK Gurdon Institute, The Henry Wellcome Building of Cancer and Developmental Biology, University of Cambridge, Cambridge, United Kingdom, Department of Zoology, University of Cambridge, Cambridge, United Kingdom

David E. Simpson

Affiliation The Wellcome Trust/Cancer Research UK Gurdon Institute, The Henry Wellcome Building of Cancer and Developmental Biology, University of Cambridge, Cambridge, United Kingdom

John B. Gurdon

j.gurdon@gurdon.cam.ac.uk

Affiliations The Wellcome Trust/Cancer Research UK Gurdon Institute, The Henry Wellcome Building of Cancer and Developmental Biology, University of Cambridge, Cambridge, United Kingdom, Department of Zoology, University of Cambridge, Cambridge, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

The author(s) have made the following declarations about their contributions: Conceived and designed the experiments: PN JBG. Performed the experiments: PN DES. Analyzed the data: PN JBG. Contributed reagents/materials/analysis tools: PN JBG. Wrote the paper: PN JBG.