About the Authors

Claudia Wolff

Affiliation Institute of Pathology, Technische Universität München, Munich, Germany

Christina Schott

Affiliation Institute of Pathology, Technische Universität München, Munich, Germany

Peter Porschewski

Affiliation Qiagen GmbH, Hilden, Germany

Bilge Reischauer

Affiliation Institute of Pathology, Technische Universität München, Munich, Germany

Karl-Friedrich Becker

kf.becker@lrz.tum.de

Affiliation Institute of Pathology, Technische Universität München, Munich, Germany

Competing Interests

KFB is a named inventor of a patent related to protein extraction from FFPE tissues. PP is an employee of Qiagen GmbH, Hilden, Germany. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: CW PP KFB. Performed the experiments: CS CW BR. Analyzed the data: CW BR. Contributed reagents/materials/analysis tools: PP KFB. Wrote the paper: CW KFB.