Bioinformatics Centre, Department of Molecular Biology, University of Copenhagen, Ole Maaloes Vej 5, DK-2200 Copenhagen, Denmark. won@binf.ku.dk|Bioinformatics Centre, Department of Molecular Biology, University of Copenhagen, Ole Maaloes Vej 5, DK-2200 Copenhagen, Denmark. won@binf.ku.dk|Bioinformatics Centre, Department of Molecular Biology, University of Copenhagen, Ole Maaloes Vej 5, DK-2200 Copenhagen, Denmark. won@binf.ku.dk|Bioinformatics Centre, Department of Molecular Biology, University of Copenhagen, Ole Maaloes Vej 5, DK-2200 Copenhagen, Denmark. won@binf.ku.dk