Experienced in characterizing Bacterial Nitrosative stress tolerance mechanisms and implications of reactive nitrogen species (RNS) assisted/ in-vivo post translational modifications (PTM) focusing the biochemical, proteomic and redox biology aspects. Currently Investigating the roles of Redesigned aminoacyl-tRNA synthetases or "Urzymes" to understand the "Rodin-Ohno hypothesis" and the evolutionary aspects under the "Matter to Life" program of Sloan Foundation at UNC, Chapel Hill.