Vital-IT Group, Molecular Modeling Group, Swiss Institute of Bioinformatics, Lausanne, Switzerland.|Vital-IT Group, Molecular Modeling Group, Swiss Institute of Bioinformatics, Lausanne, Switzerland.|Vital-IT Group, Molecular Modeling Group, Swiss Institute of Bioinformatics, Lausanne, Switzerland.|Vital-IT Group, Molecular Modeling Group, Swiss Institute of Bioinformatics, Lausanne, Switzerland.