1. European Molecular Biology Laboratory; European Bioinformatics Institute (EMBL-EBI), Wellcome Trust Genome Campus; Hinxton Cambridge CB10 1SD United Kingdom
2. Laboratory of Bioinformatics and Systems Biology; Centre of New Technologies, University of Warsaw, 02-089; Warsaw Poland
3. National Centre for Biomolecular Research, Faculty of Science and CEITEC - Central European Institute of Technology; Masaryk University Brno, 625 00; Brno-Bohunice Czech Republic