IRE1α kinase-IN-1 是一种高度选择性的 IRE1α (ERN1) 抑制剂，IC₅₀ 为 77 nM。IRE1α kinase-IN-1 对 IRE1α 的选择性比 IRE1β 亚型高 100 倍。IRE1α kinase-IN-1 抑制内质网诱导的 IRE1α 寡聚和自磷酸化，并抑制 IRE1α RNase 活性 (IC₅₀=80 nM)。

IRE1α kinase-IN-1 is a highly selective IRE1α (ERN1) inhibitor, with an IC 50 of 77 nM. IRE1α kinase-IN-1 displays 100-fold selectivity for IRE1α over the IRE1β isoform. IRE1α kinase-IN-1 inhibits ER stress-induced IRE1α oligomerization and autophosphorylation, and also inhibits IRE1α RNase activity (IC 50 =80 nM).

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IRE1α kinase-IN-1 (compound 31) prevents endoplasmic reticulum stress-induced IRE1α oligomerization and phosphorylation, and inhibits endoribonuclease activity in human cells.
IRE1α kinase-IN-1 and is very high selectivity with >70% inhibition of only 4/455 kinases. IRE1α kinase-IN-1 inhibits recombinant G547 IRE1α KEN domain pS274 autophosphorylation with an IC50 of 160 nM. IRE1α kinase-IN-1 inhibits tunicamycin-induced GFP-IRE1α foci in HEK293 cells with an IC50 of 0.74 μM. IRE1α kinase-IN-1 Inhibits ATP-site LanthaScreen tracer binding to recombinant dephosphorylated G547 IRE1α KEN with an IC50 of 0.27 μM.
IRE1α kinase-IN-1 inhibits both tunicamycin- and thapsigargin-induced IRE1α-dependent splicing of XBP1 luciferase fusion mRNA in HEK293 cells with IC50s ranging 0.68-1.63 μM.
IRE1α kinase-IN-1 (0-20 μM) inhibits

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[1]. Colombano G, et al. Binding to an Unusual Inactive Kinase Conformation by Highly Selective Inhibitors of Inositol-Requiring Enzyme 1α Kinase-Endoribonuclease. J Med Chem. 2019;62(5):2447-2465.

In Vitro: DMSO : 25 mg/mL (49.51 mM; ultrasonic and warming and heat to 60°C)配制储备液