1. Cell Cycle/DNA Damage Apoptosis
  2. IRE1 Apoptosis
  3. KIRA9

KIRA9 is a potent IRE1 inhibitor (IC50=4.8 μM in INS-1 cells). KIRA9 is able to fully engage the ATP-binding site of IRE1α. KIRA9 can block ER-localized mRNA decay and apoptosis.

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KIRA9 Chemical Structure

KIRA9 Chemical Structure

CAS No. : 2922507-65-9

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Description

KIRA9 is a potent IRE1 inhibitor (IC50=4.8 μM in INS-1 cells). KIRA9 is able to fully engage the ATP-binding site of IRE1α. KIRA9 can block ER-localized mRNA decay and apoptosis[1].

IC50 & Target

IC50: 4.8 μM (IRE1) in INS-1 cells[1]

In Vitro

KIRA9 (0-30 μM; 2 hours) blocks the autophosphorylation induced by conditional overexpression of IRE1α in INS-1 cells (IC50=4.8 μM)[1].
KIRA9 (20 μM; 2 hours) reduces the mRNA expression of Bloc1s1, Ins1 and Ins2 in INS-1 cells[1].
KIRA9 (20 μM; 2 hours) blunts IRE1α-dependent decay (RIDD) in ER-stressed INS-1 cells[1].
KIRA9 (20 μM; 1 hour) markedly reduces the generation of cleaved caspase-3 and shows significant cytoprotective efficacy[1].
KIRA9 (0-20 μM; 3 days) reduces XBP1s expression, plasma cell differentiation and IgM secretion in a dose-dependent manner[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Apoptosis Analysis

Cell Line: INS-1 cells[1]
Concentration: 20 μM
Incubation Time: 1 hour
Result: Markedly reduced the generation of cleaved caspase-3 and showed significant cytoprotective efficacy.

Cell Differentiation Assay

Cell Line: Mouse splenocytes (LPS-treated)[1]
Concentration: 0, 1.25, 2.5, 5.0, 10 and 20 μM
Incubation Time: 3 days
Result: Reduced XBP1s expression, plasma cell differentiation and IgM secretion in a dose-dependent manner.
Molecular Weight

572.60

Formula

C27H27F3N6O3S

CAS No.
SMILES

O=S(NC1=CC=C(OC2=NC=CC=C2C3=CC=NC(N[C@@H]4CNCCC4)=N3)C5=C1C=CC=C5)(CCC(F)(F)F)=O

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Room temperature in continental US; may vary elsewhere.

Storage

Please store the product under the recommended conditions in the Certificate of Analysis.

Purity & Documentation
References
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KIRA9 Related Classifications

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Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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KIRA9
Cat. No.:
HY-145422
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