About the Authors

Theodoros Goulas

thgcri@ibmb.csic.es (TG); fxgr@ibmb.csic.es (FXGR)

Affiliation Proteolysis Lab, Molecular Biology Institute of Barcelona, CSIC, Barcelona Science Park, Helix Building, Barcelona, Spain

Anna Cuppari

Current address: Structural MitoLab, Molecular Biology Institute of Barcelona, CSIC, Barcelona Science Park, Barcelona, Spain

Affiliation Proteolysis Lab, Molecular Biology Institute of Barcelona, CSIC, Barcelona Science Park, Helix Building, Barcelona, Spain

Raquel Garcia-Castellanos

Current address: Protein Expression Core Facility, Institute for Research in Biomedicine (IRB Barcelona), Barcelona Science Park, Barcelona, Spain

Affiliation Proteolysis Lab, Molecular Biology Institute of Barcelona, CSIC, Barcelona Science Park, Helix Building, Barcelona, Spain

Scott Snipas

Affiliation Sanford-Burnham Medical Research Institute, La Jolla, California, United States of America

Rudi Glockshuber

Affiliation Institute of Molecular Biology and Biophysics, Department of Biology, Zurich, Switzerland

Joan L. Arolas

Affiliation Proteolysis Lab, Molecular Biology Institute of Barcelona, CSIC, Barcelona Science Park, Helix Building, Barcelona, Spain

F. Xavier Gomis-Rüth

thgcri@ibmb.csic.es (TG); fxgr@ibmb.csic.es (FXGR)

Affiliation Proteolysis Lab, Molecular Biology Institute of Barcelona, CSIC, Barcelona Science Park, Helix Building, Barcelona, Spain

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: TG FXGR. Performed the experiments: TG AC RGC. Analyzed the data: TG AC RGC FXGR. Contributed reagents/materials/analysis tools: SS RG FXGR. Wrote the paper: TG SS RGC RG JLA FXGR.