Laboratory of Structural Bioinformatics, Centre of New Technologies, University of Warsaw, Warsaw, Poland.|Laboratory of Structural Bioinformatics, Centre of New Technologies, University of Warsaw, Warsaw, Poland.|Laboratory of Structural Bioinformatics, Centre of New Technologies, University of Warsaw, Warsaw, Poland.|Department of Protein Evolution, Max Planck Institute for Developmental Biology, Tübingen, Germany.|Laboratory of Structural Bioinformatics, Centre of New Technologies, University of Warsaw, Warsaw, Poland.