Bioinformatics Centre, Institute of Microbial Technology, Sector-39A, Chandigarh, India. aarti@imtech.res.in|Bioinformatics Centre, Institute of Microbial Technology, Sector-39A, Chandigarh, India. aarti@imtech.res.in|Bioinformatics Centre, Institute of Microbial Technology, Sector-39A, Chandigarh, India. aarti@imtech.res.in