About the Authors

Zhe Zhang

Affiliation Physik-Department T38, Technische Universität München, James-Franck-Str. 1, 84748 Garching, Germany

Christina E. M. Schindler

Affiliation Physik-Department T38, Technische Universität München, James-Franck-Str. 1, 84748 Garching, Germany

Oliver F. Lange

Affiliation Biomolecular NMR and Munich Center for Integrated Protein Science, Department Chemie, Technische Universität München, Lichtenbergstr. 4, 85748 Garching, Germany

Martin Zacharias

martin.zacharias@ph.tum.de

Affiliation Physik-Department T38, Technische Universität München, James-Franck-Str. 1, 84748 Garching, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ZZ OL MZ. Performed the experiments: ZZ CS. Analyzed the data: ZZ CS MZ. Contributed reagents/materials/analysis tools: ZZ OL CS MZ. Wrote the paper: ZZ OL CS MZ.