1. Department of Biochemistry, Eötvös Loránd University, Pázmány Péter sétány 1/C, 1117 Budapest, Hungary.
2. Department of Computational Biology and Applied Algorithmics, Max Planck Institute for Informatics, 66123 Saarbrücken, Germany.
3. Protein Lab, Chemical Research Centre, Hungarian Academy of Sciences, 1025 Budapest, Hungary.
4. Department of Bioinformatics, Institute of Biometrics and Medical Informatics, University Medicine Greifswald, 17475 Greifswald, Germany.