About the Authors

Markus Altmann

Affiliation Department of Gene Vectors, GSF-National Research Center for Environment and Health, München, Germany

Wolfgang Hammerschmidt

To whom correspondence should be addressed. E-mail: hammerschmidt@gsf.de

Affiliation Department of Gene Vectors, GSF-National Research Center for Environment and Health, München, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

WH conceived and designed the experiments. MA performed the experiments. MA and WH analyzed the data. MA and WH contributed reagents/materials/analysis tools. WH wrote the paper.