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Cleaved Notch1 (Val1744) Antibody #2421

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Inquiry Info. # 2421

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    Product Specifications

    REACTIVITY H M R Mk
    SENSITIVITY Endogenous
    MW (kDa) 110
    SOURCE Rabbit
    Application Key:
    • WB-Western Blotting 
    • IP-Immunoprecipitation 
    Species Cross-Reactivity Key:
    • H-Human 
    • M-Mouse 
    • R-Rat 
    • Mk-Monkey 

    Product Information

    Product Usage Information

    Application Dilution
    Western Blotting 1:1000
    Immunoprecipitation 1:50

    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.

    Protocol

    Specificity / Sensitivity

    Cleaved Notch1 (Val1744) Antibody detects endogenous levels of the Notch1 intracellular domain (NICD) only when released by cleavage between Gly1753 and Val1754 (equivalent to Gly1743/Val1744 of murine Notch1). This antibody does not recognize full-length Notch1 or Notch1 cleaved at other positions. This antibody may cross-react with overexpressed cleaved Notch2, 3 and 4.

    Species Reactivity:

    Human, Mouse, Rat, Monkey

    Source / Purification

    Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to the sequence at the Val1754 cleavage site in human Notch 1 (equivalent to Val1744 in mouse Notch1). Antibodies are purified by protein A and peptide affinity chromatography.

    Background

    Notch proteins (Notch1-4) are a family of transmembrane receptors that play important roles in development and the determination of cell fate (1). Mature Notch receptors are processed and assembled as heterodimeric proteins, with each dimer composed of a large extracellular ligand-binding domain, a single-pass transmembrane domain, and a smaller cytoplasmic subunit (Notch intracellular domain, NICD) (2). Binding of Notch receptors to ligands of the Delta-Serrate-Lag2 (DSL) family triggers heterodimer dissociation, exposing the receptors to proteolytic cleavages; these result in release of the NICD, which translocates to the nucleus and activates transcription of downstream target genes (3,4).

    The NICD of murine Notch1 is released (activated) by cleavage between Gly1743 and Val1744 (corresponding to Gly1753/Val1754 in human Notch1) (3, 4). Mutations that result in constitutive activation of Notch1 are associated with many different cancers, including a majority of cases of T cell acute lymphoblastic leukemia (T-ALL). Activation may be due to mutations in Notch1 itself, or in components of the ubiquitin ligase complex that negatively regulates the Notch signaling pathway (5-6).

    Alternate Names

    AOS5; AOVD1; hN1; Neurogenic locus notch homolog protein 1; NEXT; NICD; NOTC1; Notch 1; Notch 1 extracellular truncation; Notch 1 intracellular domain; Notch homolog 1, translocation-associated; Notch homolog 1, translocation-associated (Drosophila); notch receptor 1; NOTCH1; TAN1; Translocation-associated notch protein TAN-1

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