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KGR-53P

Chemical Structure : KGR-53P

CAS No.:

KGR-53P (Ac-Tle-hGlu(tBu)-hCha-Asp-AOMK)

Catalog No.: PC-27891Not For Human Use, Lab Use Only.

KGR-53P (Ac-Tle-hGlu(tBu)-hCha-Asp-AOMK) is a peptidic inhibitor of Caspase-11, inhibits LPS-induced pyroptosis in BMDMs with IC50 of 4 uM, inhibits caspase-11-dependent pyroptosis.

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Purity & Documentation Purity: >98% (HPLC) Select Batch:

    Biological Activity

    KGR-53P (Ac-Tle-hGlu(tBu)-hCha-Asp-AOMK) is a peptidic inhibitor of Caspase-11, inhibits LPS-induced pyroptosis in BMDMs with IC50 of 4 uM, inhibits caspase-11-dependent pyroptosis.
    KGR-53P blocks LPS-induced GSDMD cleavage, as well as caspase-11-dependent secretion of IL-1β and IL-18.
    KGR-53P does not protect BMDMs from venetoclax-induced intrinsic apoptosis and thymocytes from Fas ligand (FasL)-induced extrinsic apoptosis.
    KGR-53P inhibits caspase-11-dependent pyroptosis.
    KGR-53P reduces serum IL-1β and IL-18 in mice treated with LPS.

    Physicochemical Properties

    M.Wt 800.99
    Formula C42H64N4O11
    Appearance Solid
    CAS No.
    Storage
    Solide Powder
    -20°C 12 Months; 4°C 6 Months
    In Solvent
    -80°C 6 Months; -20°C 6 Months
    Shipping
    Solubility

    10 mM in DMSO

    Chemical Name/SMILES

    (4S,7S,10S,13S)-7-(4-(tert-butoxy)-4-oxobutyl)-4-(tert-butyl)-10-(2-cyclohexylethyl)-13-(2-((2,6-dimethylbenzoyl)oxy)acetyl)-2,5,8,11-tetraoxo-3,6,9,12-tetraazapentadecan-15-oic acid

    References

    1. Groborz KM, et al. Nature. 2026 Aug 3. doi: 10.1038/s41586-026-10957-y.

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