Department of Molecular Genetics , Bioinformatics Unit, Flanders Interuniversity Institute for Biotechnology, University of Antwerp, B-2610 Antwerpen, Belgium.|Department of Molecular Genetics , Bioinformatics Unit, Flanders Interuniversity Institute for Biotechnology, University of Antwerp, B-2610 Antwerpen, Belgium.|Department of Molecular Genetics , Bioinformatics Unit, Flanders Interuniversity Institute for Biotechnology, University of Antwerp, B-2610 Antwerpen, Belgium.|Department of Molecular Genetics , Bioinformatics Unit, Flanders Interuniversity Institute for Biotechnology, University of Antwerp, B-2610 Antwerpen, Belgium.