About the Authors

Costis Papanayotou, Sharon Boast, Claudio D Stern
Department of Anatomy & Developmental Biology, University College London, London, United Kingdom

Anne Mey, Anne-Marie Birot, Jacques Samarut
Institut de Génomique Fonctionnelle de Lyon, Université de Lyon, Lyon, France

Anne Mey, Anne-Marie Birot, Jacques Samarut
Ecole Normale Supérieure de Lyon, CNRS/INRA, Lyon, France

Yasushi Saka, Jim C Smith
Wellcome/Cancer Research UK Gurdon Institute for Cancer and Developmental Biology, Cambridge, United Kingdom

Corresponding Author

c.stern@ucl.ac.uk

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

CP and CDS conceived and designed the project and most of the experiments. CP performed most of the experiments. AM and AMB performed the experiments on cES cells and two-hybrid screens from cES cell cDNAs (these were conceived and designed by JS), and CP and SB designed and performed the two-hybrid screen experiments using chicken embryo cDNAs. YS and JCS perfected the use of Venus for BiFCO experiments. AM, AMB, YS, JCS, and JS contributed reagents/materials/analysis tools. CP and CDS wrote the paper.