About the Authors
Institut de Génétique Humaine, UPR1142-CNRS, Montpellier, France
The authors have declared that no competing interests exist.
CG, FB, and BdM conceived and designed the experiments. CG and FB performed the experiments. CG, FB, and BdM analyzed the data. BdM contributed reagents/materials/analysis tools. CG, FB, and BdM wrote the paper.