1. Molecular
and Cellular Modeling Group, Heidelberg Institute for Theoretical Studies, 69118 Heidelberg, Germany
2. Department
of Biochemistry and Biophysics, University of California—San Francisco, San Francisco, California 94158, United States
3. Department
of Biotechnology, Chemistry and Pharmacy, University of Siena, 53100 Siena, Italy
4. Department
of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
5. Ecole Polytechnique,
CNRS UMR7645, INSERM U696, 91128 Palaiseau, France
6. Center for
Molecular Biology, DKFZ-ZMBH Alliance, and Interdisciplinary Center
for Scientific Computing (IWR), Heidelberg University, 69120 Heidelberg, Germany