UM-232
UM-232 is a highly selective covalent STING antagonist with an EC50 of 6.20 μM in STING R232-expressing THP-1 cells. UM-232 covalently targets C292 and C309 cysteines of STING, blocks STING oligomerization and inhibits downstream TBK1/IRF3 activation and proinflammatory cytokine transcription. UM-232 has low off-target reactivity and good hepatic stability, serving as a chemical probe for STING-driven autoimmune and inflammatory diseases including Aicardi-Goutières syndrome (AGS), Systemic Lupus Erythematosus (SLE) and Amyotrophic Lateral Sclerosis (ALS).
For research use only. We do not sell to patients.
- Formula: C29H35ClN6O2
- Molecular Weight:535.08
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biological Activity
UM-232 (1 h) exhibits minimal toxicity at concentrations below 40 μM in THP1 Dual cells[1].
UM-232 covalently engages C292 and C309 residues of STING in HEK293T cells[1].
UM-232 (2.5-5 μM; 1 h) inhibits diABZI (diABZI STING agonist-1) (HY-112921A)-triggered transcription of Ifnb, Il6, and Cxcl10 in a dose-dependent manner in BMDMs[1].
UM-232 (5 μM; 1 h) inhibits STING activation and downstream signaling in vitro in BMDMs[1].
UM-232 (5 μM; 15 min) possesses favorable metabolic stability in human liver microsomes and superior stability relative to control compound in mouse liver microsomes[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Cell Line:HEK293T cells
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Concentration:5 μM
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Incubation Time:1 h
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Result:Covalently bound wild-type STING.
Produced drastically weakened labeling signals on STING with C292A or C309 mutations.
Markedly reduced the levels of phospho-IRF3 and phospho-TBK1 after treatment.
Blocked STING oligomerization.
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Cell Line:Bone marrow-derived macrophages (BMDMs)
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Concentration:2.5 μM, 5 μM
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Incubation Time:1 h
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Result:Suppressed diABZI-induced transcription of Ifnb, Il6, and Cxcl10 in a dose-dependent manner.
Chemical Information
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Molecular Weight 535.08
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Formula C29H35ClN6O2
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SMILES
CC(Cl)C(NCCC[C@H](N1N=NC(C2=CC=C(C3=CC=CC=C3)C=C2)=C1)C(N(CC4)CCC54COC5)=O)=N
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Purity & Documentation
References
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)