Center of Applied Molecular Engineering, Department of Bioinformatics, Division of Molecular Biology, University of Salzburg, 5020 Salzburg, Austria.|Center of Applied Molecular Engineering, Department of Bioinformatics, Division of Molecular Biology, University of Salzburg, 5020 Salzburg, Austria.|Center of Applied Molecular Engineering, Department of Bioinformatics, Division of Molecular Biology, University of Salzburg, 5020 Salzburg, Austria.