1. Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, Maryland, USA
2. Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, National Research Council (CNR-IBIOM), Bari, Italy
3. Department of Biomedical Sciences, University of Padova, Padova, Italy
4. Structural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg 69117, Germany
5. Department of Biological Sciences, University of Maryland Baltimore County, Baltimore, Maryland, United States
6. Division of Environmental Genomics and Systems Biology, Lawrence Berkeley National Lab, Berkeley, California, USA