GGsTop

GGsTop (Nahlsgen) is a potent, non-toxic, highly selective and irreversible γ-GGT inhibitor, with a Ki of 170 μM for Human GGT. GGsTop shows a pKa of 9.71, also exhibits Kons of 150 and 51 M-1 s-1 against E.coli GGT and human GGT, respectively. GGsTop protects hepatic ischemia-reperfusion injury in rat model[1][2][3].

[1]Han L, et al. Design, synthesis, and evaluation of gamma-phosphono diester analogues of glutamate as highly potent inhibitors and active site probes of gamma-glutamyl transpeptidase. Biochemistry. 2007 Feb 6;46(5):1432-47.|[2]Kamiyama A, et al. Phosphonate-based irreversible inhibitors of human γ-glutamyl transpeptidase (GGT). GGsTop is a non-toxic and highly selective inhibitor with critical electrostatic interaction with an active-site residue Lys562 for enhanced inhibitory activity. Bioorg Med Chem. 2016 Nov 1;24(21):5340-5352.|[3]Tamura K, et al. GGsTop, a novel and specific γ-glutamyl transpeptidase inhibitor, protects hepatic ischemia-reperfusion injury in rats. Am J Physiol Gastrointest Liver Physiol. 2016 Aug 1;311(2):G305-12.