Systems Biology and Bioinformatics Group, University of Rostock, Rostock, Germany. henning.schmidt@uni-rostock.de|Systems Biology and Bioinformatics Group, University of Rostock, Rostock, Germany. henning.schmidt@uni-rostock.de|Systems Biology and Bioinformatics Group, University of Rostock, Rostock, Germany. henning.schmidt@uni-rostock.de|Systems Biology and Bioinformatics Group, University of Rostock, Rostock, Germany. henning.schmidt@uni-rostock.de