About the Authors
Icon Genetics GmbH, Halle/Saale, Germany
EW, CE, RG, SW and SM are employees of Icon Genetics GmbH. Icon Genetics GmbH has filed a patent application on the vector system presented in this article. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.
Conceived and designed the experiments: SM. Performed the experiments: EW CE RG SW. Wrote the paper: EW SM.