1. Institute for Biochemistry, Charité Universitätsmedizin Berlin , Berlin , Germany
2. Department of Biology, Humboldt Universität zu Berlin , 10117 Berlin , Germany
3. Bristol Myers Squibb , San Diego, CA 92121 , USA
4. The Scripps Research Institute, Animal Models Core , La Jolla, CA 92037 , USA
5. Department of Medicine, Ludwig Cancer Institute , San Diego , USA
6. Neurocure Center for Excellence, Charité Universitätsmedizin Berlin , Germany
7. Department of Medicine, University of California San Diego , La Jolla , USA