1. Signaling Pathways
  2. Cell Cycle/DNA Damage
  3. IRE1

IRE1

Inositol-requiring enzyme 1 (IRE1) is a bifunctional serine/threonine kinase and endoribonuclease that is a major mediator of the unfolded protein response (UPR) during endoplasmic reticulum (ER) stress. It represents a potential therapeutic target for a number of diseases associated with endoplasmic reticulum stress.

IRE1 is the only identified ER stress sensor in yeast and essential for UPR in animals and plants. As an ER transmembrane protein, IRE1 monitors ER homeostasis through an ER luminal stress-sensing domain and triggers UPR through a cytoplasmic kinase domain and an RNase domain. Upon ER stress, IRE1 RNase is activated through conformational change, autophosphorylation, and higher order oligomerization. Mammalian IRE1 initiates diverse downstream signaling of the UPR either through unconventional splicing of the transcription factor Xbp-1 or and through posttranscriptional modifications via Regulated IRE1-Dependent Decay (RIDD) of multiple substrates.

IRE1 Related Products (22):

Cat. No. Product Name Effect Purity
  • HY-10255A
    Sunitinib
    Inhibitor ≥98.0%
    Sunitinib (SU 11248) is a multi-targeted receptor tyrosine kinase inhibitor with IC50s of 80 nM and 2 nM for VEGFR2 and PDGFRβ, respectively. Sunitinib, an ATP-competitive inhibitor, effectively inhibits autophosphorylation of Ire1α by inhibiting autophosphorylation and consequent RNase activation.
  • HY-19707
    4μ8C
    Inhibitor 99.72%
    4μ8C (IRE1 Inhibitor III) is a small-molecule inhibitor of IRE1α.
  • HY-15845
    STF-083010
    Inhibitor ≥98.0%
    STF-083010 is a specific IRE1α inhibitor. STF-083010 inhibits Ire1 endonuclease activity, without affecting its kinase activity, after endoplasmic reticulum stress.
  • HY-19708
    KIRA6
    Inhibitor ≥98.0%
    KIRA6 is an advanced small-molecule IRE1α RNase kinase inhibitor with an IC50 of 0.6 µM. KIRA6 can trigger an apoptotic response.
  • HY-114368
    Kira8
    Inhibitor 99.74%
    Kira8 (AMG-18) is a mono-selective IRE1α inhibitor that allosterically attenuates IRE1α RNase activity with an IC50 of 5.9 nM.
  • HY-10255
    Sunitinib Malate
    Inhibitor ≥99.0%
    Sunitinib Malate (SU 11248 Malate) is a multi-targeted receptor tyrosine kinase inhibitor with IC50s of 80 nM and 2 nM for VEGFR2 and PDGFRβ, respectively. Sunitinib Malate, an ATP-competitive inhibitor, effectively inhibits autophosphorylation of Ire1α by inhibiting autophosphorylation and consequent RNase activation.
  • HY-103248
    Toyocamycin
    Inhibitor ≥99.0%
    Toyocamycin (Vengicide) is an adenosine analog produced by Actinomycete, acts as an XBP1 inhibitor, inhibits IRE1α-induced ATP-dependent XBP1 mRNA cleavage, with an IC50 of 80 nM. Toyocamycin (Vengicide) induces apoptosis. Toyocamycin (Vengicide) shows no effect on IRE1α auto-phosphorylation.
  • HY-17537
    APY29
    Inhibitor 99.90%
    APY29, an ATP-competitive inhibitor, is an allosteric modulator of IRE1α which inhibits IRE1α autophosphorylation by binding to the ATP-binding pocket with IC50 of 280 nM. APY29 acts as a ligand that allosterically activates IRE1α adjacent RNase domain.
  • HY-U00459
    GSK2850163
    Inhibitor ≥98.0%
    GSK2850163 is a novel inhibitor of inositol-requiring enzyme-1 alpha (IRE1α) which can inhibit IRE1α kinase activity and RNase activity with IC50s of 20 and 200 nM, respectively.
  • HY-104040
    MKC8866
    Inhibitor 99.87%
    MKC8866, a salicylaldehyde analog, is a potent, selective IRE1 RNase inhibitor with an IC50 of 0.29 μM in human vitro. MKC8866 strongly inhibits Dithiothreitol-induced X-box-binding protein 1-spliced (XBP1s) expression with an EC50 of 0.52 μM and unstresses RPMI 8226 cells with an IC50 of 0.14 μM. MKC8866 inhibits IRE1 RNase in breast cancer cells leading to the decreased production of pro-tumorigenic factors and it can inhibits prostate cancer (PCa) tumor growth.
  • HY-19710
    MKC3946
    Inhibitor 99.68%
    MKC3946 is a potent IRE1α inhibitor, used for cancer research.
  • HY-107400
    B I09
    Inhibitor 99.60%
    B I09 is an IRE-1 RNase inhibitor, with an IC50 of 1230 nM.
  • HY-12399
    MKC9989
    Inhibitor 98.36%
    MKC9989 is a Hydroxy aryl aldehydes (HAA) inhibitor and also inhibits IRE1α with an IC50 of 0.23 to 44 μM.
  • HY-107371
    6-Bromo-2-hydroxy-3-methoxybenzaldehyde
    Inhibitor 99.55%
    6-Bromo-2-hydroxy-3-methoxybenzaldehyde (NSC95682) is an IRE-1α inhibitor with an IC50 of 0.08 μM, extracted from patent WO 2008154484 A1, IRE-lα inhibitor compound 3-5.
  • HY-U00460
    3,6-DMAD hydrochloride
    Inhibitor ≥99.0%
    3,6-DMAD hydrochloride is a inhibitor of the IRE1α-XBP1 pathway of the unfolded protein response.
  • HY-114368A
    Kira8 Hydrochloride
    Inhibitor
    Kira8 Hydrochloride (AMG-18 Hydrochloride) is a mono-selective IRE1α inhibitor that allosterically attenuates IRE1α RNase activity with an IC50 of 5.9 nM.
  • HY-136735
    IRE1α kinase-IN-1
    Inhibitor
    IRE1α kinase-IN-1 is a highly selective IRE1α (ERN1) inhibitor, with an IC50 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 (IC50=80 nM).
  • HY-124646
    KIRA-7
    Inhibitor
    KIRA-7, an imidazopyrazine compound, binds the IRE1α kinase (IC50 of 110 nM) to allosterically inhibit its RNase activity. KIRA-7 has an anti-fibrotic effect.
  • HY-U00459B
    GSK2850163 hydrochloride
    Inhibitor
    GSK2850163 hydrochloride is a novel inhibitor of inositol-requiring enzyme-1 alpha (IRE1α) which can inhibit IRE1α kinase activity and RNase activity with IC50s of 20 and 200 nM, respectively.
  • HY-18509
    IRE1α kinase-IN-2
    Inhibitor
    IRE1α kinase-IN-2 is a potent IRE1α kinase inhibitor, with an EC50 of 0.82 μM. IRE1α kinase-IN-2 inhibits IRE1α kinase autophosphorylation (IC50=3.12 μM). IRE1α kinase-IN-2 inhibits XBP1 mRNA splicing in the WT cell lines.
Isoform Specific Products

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