Cell Signaling Technology Logo - Extra Large

Phospho-Caspase-9 (Thr125) Antibody #2226

Inquiry Info. # 2226

Please see our recommended alternatives.

    Product Specifications

    REACTIVITY
    SENSITIVITY Endogenous
    MW (kDa) 49
    SOURCE Rabbit

    Product Information

    Storage

    Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at –20°C. Do not aliquot the antibody.

    Specificity / Sensitivity

    Phospho-Caspase-9 (Thr125) Antibody detects endogenous levels of caspase-9 only when phosphorylated at threonine 125.

    Source / Purification

    Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Thr125 of human caspase-9

    Background

    Caspase-9 (ICE-LAP6, Mch6) is an important member of the cysteine aspartic acid protease (caspase) family (1,2). Upon apoptotic stimulation, cytochrome c released from mitochondria associates with the 47 kDa procaspase-9/Apaf-1. Apaf-1 mediated activation of caspase-9 involves intrinsic proteolytic processing, resulting in cleavage at Asp315 and producing a p35 subunit. Another cleavage occurs at Asp330, producing a p37 subunit that can serve to amplify the apoptotic response (3-6). Cleaved caspase-9 further processes other caspase members, including caspase-3 and caspase-7, to initiate a caspase cascade, which leads to apoptosis (7-10).

    Caspase-9 is phosphorylated at Thr125 through the p44/42 MAPK pathway, and this phosphorylation is associated with inhibition of caspase activation (6).

    Alternate Names

    APAF-3; APAF3; apoptotic protease activating factor 3; Apoptotic protease Mch-6; Apoptotic protease-activating factor 3; CASP-9; CASP9; caspase 9; caspase 9, apoptosis-related cysteine peptidase; caspase 9, apoptosis-related cysteine protease; Caspase-9; Caspase-9 subunit p10; Caspase-9 subunit p35; CASPASE-9c; ICE-LAP6; ICE-like apoptotic protease 6; MCH6; PPP1R56; protein phosphatase 1, regulatory subunit 56

    For Research Use Only. Not for Use in Diagnostic Procedures.
    Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
    All other trademarks are the property of their respective owners. Visit our Trademark Information page.