TLK197是TLK199的活性代谢物，选择性抑制谷胱甘肽S-转移酶P1-1 (Glutathione S-transferase P1–1 (GSTP1-1))，结合 GSTP的 K_i 值为0.4 μM。 TLK117还竞争性地抑制乙二醛酶I (glyoxalase I)， K_i值为0.56 μM。

TLK117, the active metabolite of TLK199, selective inhibits Glutathione S-transferase P1–1 (GSTP1-1) with a K i of 0.4 μM for GSTP. TLK117 also competitively inhibits glyoxalase I with a K i of 0.56 μM.

Solid

Ki: 0.4 μM, 0.56 μM (glyoxalase I)

TLK117 is the most specific GSTP inhibitor to date, with a binding affinity greater than GSH itself and a selectivity for GSTP over 50-fold greater than the GSTM and GSTA classes (Ki=0.4 μM). TER 117 is developed as a GST P1-1 isoenzyme inhibitor to circumvent the indicated contribution of GST P1-1 to drug resistance of tumor cells. To facilitate the cellular uptake of TER 117, it is delivered as a diethyl ester (TER 117 DEE, also called TER 199). TER 117 is found to be a competitive inhibitor of both GST P1-1 and glyoxalase I. has not independently confirmed the accuracy of these methods. They are for reference only.

Oropharyngeal administration of the GSTP inhibitor, TLK117, at a time when fibrosis is already apparent, attenuated bleomycin- and AdTGFβ-induced remodeling, α-SMA, caspase activation, FAS S-glutathionylation, and total protein S-glutathionylation. Four hours after administration of 50 mg/kg TLK117, GSTP activity is strongly decreased and remains decreased by about 60% for at least 24 hours. has not independently confirmed the accuracy of these methods. They are for reference only.

Room temperature in continental US; may vary elsewhere.

Powder -20°C 3 years；4°C 2 years

[1]. The human glutathione transferase P1-1 specific inhibitor TER 117 designed for overcomingcytostatic-drug resistance is also a strong inhibitor of glyoxalase I. Mol Pharmacol. 2000 Mar;57(3):619-24.
[2]. McMillan DH, et al. Attenuation of lung fibrosis in mice with a clinically relevant inhibitor of glutathione-S-transferase π. JCI Insight. 2016 Jun 2;1(8). pii: e85717.

In Vitro: DMSO : 150 mg/mL (316.76 mM; Need ultrasonic)配制储备液