Biochemistry

Structural and kinetic isotope effect studies of nicotinamidase (Pnc1) from Saccharomyces cerevisiae

…, MA Anderson, KA Hoadley, JL Keck, WW Cleland…

文献索引：Smith, Brian C.; Anderson, Mark A.; Hoadley, Kelly A.; Keck, James L.; Cleland, W. Wallace; Denu, John M. Biochemistry, 2012 , vol. 51, # 1 p. 243 - 256

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被引用次数: 5

摘要

Nicotinamidases catalyze the hydrolysis of nicotinamide to nicotinic acid and ammonia. Nicotinamidases are absent in mammals but function in NAD+ salvage in many bacteria, yeast, plants, protozoa, and metazoans. We have performed structural and kinetic investigations of the nicotinamidase from Saccharomyces cerevisiae (Pnc1). Steady-state product inhibitor analysis revealed an irreversible reaction in which ammonia is the first ...