Department of Studies in Molecular Biology, University of Mysore, Manasagangotri, Mysuru, Karnataka, India. Electronic address: rajesh.r@biochemistry.uni-mysore.ac.in. Department of Studies in Biochemistry, University of Mysore, Manasagangotri, Mysuru, Karnataka, India. Chowdaiah Medical Center & Apoorva Diabetes Foundation, Mysuru, Karnataka, India. Department of Microbiology and Immunology, University of Maryland School of Medicine (UMSOM), Baltimore, MD, USA. Department of Studies in Biochemistry, University of Mysore, Manasagangotri, Mysuru, Karnataka, India. Electronic address: vishmy@biochemistry.uni-mysore.ac.in.