Jaru Jancarik

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About

Jaru Jancarik is a structural biologist whose work has significantly advanced our understanding of key metabolic enzymes, particularly those from extremophilic organisms. Her research centers on the structural and functional characterization of proteins involved in NAD+ biosynthesis and other essential pathways. Jancarik’s most notable contribution is the determination of the crystal structure of nicotinate phosphoribosyltransferase (NAPRTase) from *Thermoplasma acidophilum*, a key enzyme in the salvage pathway for NAD+ production. This study, which has garnered 38 citations, revealed a three-domain architecture—an N-terminal domain, a central functional domain, and a unique C-terminal domain—providing critical insights into the enzyme’s catalytic mechanism and substrate binding. Her work has implications for understanding metabolic adaptation in thermophiles and for the development of antimicrobial therapies targeting NAD+ biosynthesis. Jancarik’s careful structural analyses continue to inform the broader field of enzymology and protein evolution.