About the Authors

Anna Schnell

Affiliation Dept. of Biology, Unit of Biochemistry, University of Fribourg, Fribourg, Switzerland

Sylvie Chappuis

Current address: Vifor Pharma, Fribourg, Switzerland

Affiliation Dept. of Biology, Unit of Biochemistry, University of Fribourg, Fribourg, Switzerland

Isabelle Schmutz

Current address: The Rockefeller University, New York, New York, United States of America

Affiliation Dept. of Biology, Unit of Biochemistry, University of Fribourg, Fribourg, Switzerland

Emanuele Brai

Affiliation Dept. of Medicine, Unit of Anatomy, University of Fribourg, Fribourg, Switzerland

Jürgen A. Ripperger

Affiliation Dept. of Biology, Unit of Biochemistry, University of Fribourg, Fribourg, Switzerland

Olivier Schaad

Current address: Dept. of Biochemistry, Sciences II, University of Geneva, Geneva, Switzerland

Affiliation NCCR frontiers in Genetics, University of Geneva, Geneva, Switzerland

Hans Welzl

Affiliation Dept. of Anatomy, University of Zürich, Zürich, Switzerland

Patrick Descombes

Current address: Nestle Institute of Health Sciences, EPFL Innovation Park, Lausanne, Switzerland

Affiliation NCCR frontiers in Genetics, University of Geneva, Geneva, Switzerland

Lavinia Alberi

Affiliation Dept. of Medicine, Unit of Anatomy, University of Fribourg, Fribourg, Switzerland

Urs Albrecht

urs.albrecht@unifr.ch

Affiliation Dept. of Biology, Unit of Biochemistry, University of Fribourg, Fribourg, Switzerland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AS IS JAR HW PD LA UA. Performed the experiments: AS SC IS EB JAR. Analyzed the data: AS SC IS EB JAR OS HW PD LA UA. Contributed reagents/materials/analysis tools: JAR UA. Wrote the paper: AS UA.