Inhibition of a truncated form of human mitochondrial kidney-type glutaminase (hKGA124-551) by bis-2-(5-phenylactamido-1,2,4-thialdiazol-2-yl)ethyl sulfide (BPTES)
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Mitochondrial glutaminase (GA) catalyzes the hydrolysis of glutamine producing glutamate and an ammonium ion. There are three isoforms of mammalian GA that are essential to hepatic ureagenesis, renal ammoniagenesis, synthesis of the neurotransmitter glutamate, and the catabolism of glutamine. Here we focus on the human KGA isoform that is predominantly expressed in kidney, brain, intestine, and tissues of the immune system. Recent publications suggest that GA is a novel target for developing new cancer therapeutics. These studies have indicated that inhibition of GA by small molecule inhibitors ...