About the Authors
Institute of Molecular Cancer Research, University of Zurich, Zurich, Switzerland
Department of Biomolecular Sciences and Biotechnology, University of Milan, Milan, Italy
The authors have declared that no competing interests exist.
Conceived and designed the experiments: KE ML SF. Performed the experiments: KE MG. Analyzed the data: KE MG MMF ML SF. Contributed reagents/materials/analysis tools: MMF. Wrote the paper: KE ML SF.