Center for Bioinformatics Tübingen (ZBIT), University of Tübingen, Tübingen, Germany. andreas.draeger@uni-tuebingen.de|Center for Bioinformatics Tübingen (ZBIT), University of Tübingen, Tübingen, Germany. andreas.draeger@uni-tuebingen.de|Center for Bioinformatics Tübingen (ZBIT), University of Tübingen, Tübingen, Germany. andreas.draeger@uni-tuebingen.de|Center for Bioinformatics Tübingen (ZBIT), University of Tübingen, Tübingen, Germany. andreas.draeger@uni-tuebingen.de|Center for Bioinformatics Tübingen (ZBIT), University of Tübingen, Tübingen, Germany. andreas.draeger@uni-tuebingen.de|Center for Bioinformatics Tübingen (ZBIT), University of Tübingen, Tübingen, Germany. andreas.draeger@uni-tuebingen.de|Center for Bioinformatics Tübingen (ZBIT), University of Tübingen, Tübingen, Germany. andreas.draeger@uni-tuebingen.de|Center for Bioinformatics Tübingen (ZBIT), University of Tübingen, Tübingen, Germany. andreas.draeger@uni-tuebingen.de|Center for Bioinformatics Tübingen (ZBIT), University of Tübingen, Tübingen, Germany. andreas.draeger@uni-tuebingen.de