TUCS - Turku Centre for Computer Science, FI-20500 Turku, Finland.|Bioinformatics Unit, Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Tykistökatu 6, FI-20520 Turku, Finland.|Faculty of Pharmacy, Meijo University, Nagoya, Japan.|Faculty of Pharmacy, Meijo University, Nagoya, Japan.|Bioinformatics Unit, Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Tykistökatu 6, FI-20520 Turku, Finland.|Vant Hoff Institute of Molecular Sciences, 1090 GS Amsterdam, The Netherlands.