Institute of Bioinformatics, University Medical Center, Georg August University, Goettingen, Goldschmidtstrasse 1, Goettingen, D-37077, Germany. anirban.bhar@bioinf.med.uni-goettingen.de.|Institute of Bioinformatics, University Medical Center, Georg August University, Goettingen, Goldschmidtstrasse 1, Goettingen, D-37077, Germany. martin.haubrock@bioinf.med.uni-goettingen.de.|Department of Computer Science and Engineering, University of Kalyani, Kalyani, -741235, India. anirban@klyuniv.ac.in.|Institute of Bioinformatics, University Medical Center, Georg August University, Goettingen, Goldschmidtstrasse 1, Goettingen, D-37077, Germany. edgar.wingender@bioinf.med.uni-goettingen.de.