About the Authors

Jasper H. L. Claessen

Affiliation Whitehead Institute for Biomedical Research, Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts

Hidde L. Ploegh

ploegh@wi.mit.edu

Affiliation Whitehead Institute for Biomedical Research, Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JHLC HLP. Performed the experiments: JHLC. Analyzed the data: JHLC HLP. Contributed reagents/materials/analysis tools: JHLC HLP. Wrote the paper: JHLC HLP.