Department of Computer Science and Automation, Indian Institute of Science, Bangalore, 560012, India. tbmasood@csa.iisc.ernet.in.|Department of Biochemistry, Indian Institute of Science, Bangalore, 560012, India. sandhya@mbu.iisc.ernet.in.|Department of Biochemistry, Indian Institute of Science, Bangalore, 560012, India. nchandra@biochem.iisc.ernet.in.|Department of Computer Science and Automation, Indian Institute of Science, Bangalore, 560012, India. vijayn@csa.iisc.ernet.in.