Department of Molecular Life Sciences, and Swiss Institute of Bioinformatics, University of Zurich, Zurich, Switzerland.|Department of Molecular Life Sciences, and Swiss Institute of Bioinformatics, University of Zurich, Zurich, Switzerland.|Department of Molecular Life Sciences, and Swiss Institute of Bioinformatics, University of Zurich, Zurich, Switzerland.|Department of Molecular Life Sciences, and Swiss Institute of Bioinformatics, University of Zurich, Zurich, Switzerland.