About the Authors

Magdalena Anna Krzyzaniak

Affiliation Institute of Biochemistry, ETH Zurich, Zurich, Switzerland

Michael Thomas Zumstein

Affiliation Institute of Biochemistry, ETH Zurich, Zurich, Switzerland

Juan Atilio Gerez

Affiliation Institute of Biochemistry, ETH Zurich, Zurich, Switzerland

Paola Picotti

Affiliation Institute of Biochemistry, ETH Zurich, Zurich, Switzerland

Ari Helenius

ari.helenius@bc.biol.ethz.ch

Affiliation Institute of Biochemistry, ETH Zurich, Zurich, Switzerland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MAK MTZ JAG PP AH. Performed the experiments: MAK MTZ JAG. Analyzed the data: MAK MTZ JAG PP. Contributed reagents/materials/analysis tools: MAK AH. Wrote the paper: MAK AH.