Human Caspase-9 Antibody

(2 citations)   
  • Species Reactivity
    Human
  • Specificity
    Detects human Caspase-9 precursor and the pro + large subunit (LSU) that migrates as a 37 kDa band on SDS-PAGE generated by cleavage at Asp330. Does not detect the pro + LSU that migrates as a 34 kDa band on SDS-PAGE generated by cleavage at Asp315. Therefore, the major epitope detected occurs between Asp315 and Asp330.
  • Source
    Polyclonal Goat IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    E. coli-derived recombinant human Caspase-9
    Val139-Asp330
    Accession # P55211
  • Formulation
    Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
  • Label
    Unconjugated
Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    1 µg/mL
    See below
  • Immunocytochemistry
    5-15 µg/mL
    Immersion fixed Jurkat human acute T cell leukemia cell line treated with Staurosporin
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Data Examples
Detection of Human Caspase‑9 precursor and pro + large subunit (LSU) by Western Blot. Western blot shows lysates of Jurkat human acute T cell leukemia cell line untreated (-) or treated (+) with 1 μg/mL staurosporine (STS) for for the indicated times. PVDF membrane was probed with 1 µg/mL of Human Caspase‑9 Polyclonal Antibody (Catalog # AF8301), followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF109). Specific bands were detected for Caspase‑9 precursor and pro + LSU at approximately 46 and 37 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 6.
Preparation and Storage
  • Reconstitution
    Reconstitute at 0.2 mg/mL in sterile PBS.
  • Shipping
    The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
  • Stability & Storage
    Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
    • 12 months from date of receipt, -20 to -70 °C as supplied.
    • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
    • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: Caspase-9

Caspase-9 (Cysteine-aspartic acid protease 9/Casp-9; also APAF-3, Mch6 and ICE-LAP6) is a 35-37 kDa member of the peptidase C14A family of enzymes. Casp-9 is an initiator caspase that is part of the intrinsic apoptosis pathway. It is widely expressed and is particularly important during development. Human proCaspase-9 is a 47-48 kDa, 416 amino acid (aa) protein and it contains one CARD region (aa 1-92) and catalytic residues at His237 and Cys287. Following mitochondrial disruption, cytochrome c is released from mitochrondria. Cytochrome c acts on APAF-1, which induces procaspase-9 dimerization. The act of dimerization activates proCasp-9, leading to either the activation of Casp-3, or the autocleavage of proCasp-9, generating a 35 kDa subunit (aa 1-315) and a 12 kDa subunit. Activated Casp-3 will also act on proCasp-9, generating a 37 kDa subunit (aa 1-330) and a 10 kDa subunit (aa 331-416). These subunits associate to form an active heterotetramer. Casp-9 has an alternative start site at Met84 and a deletion of aa 140-289 that generates a dominant negative, 31 kDa isoform. Over aa 1-134, human Casp-9 shares 81% aa identity with mouse Casp-9; over aa 139-330, human Casp-9 shares 73% aa identity with mouse Casp-9.

  • Entrez Gene IDs:
    842 (Human)
  • Alternate Names:
    APAF-3APAF3; apoptotic protease activating factor 3; Apoptotic protease Mch-6; Apoptotic protease-activating factor 3; Cas9; CASP9; CASP-9; caspase 9, apoptosis-related cysteine peptidase; Caspase9; Caspase-9; EC 3.4.22.62; ICE-LAP6CASPASE-9c; ICE-like apoptotic protease 6; MCH6apoptosis-related cysteine protease
Related Research Areas
Citations:

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

2 Citations: Showing 1 - 2
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Species
Applications
Sample Type
  1. Ellipticine derivative NSC 338258 represents a potential new antineoplastic agent for the treatment of multiple myeloma.
    Authors: Tian E, Landowski TH, Stephens OW, Yaccoby S, Barlogie B, Shaughnessy JD
    Mol. Cancer Ther., 2008;7(3):500-9.
    Species: Human
    Sample Type: Cell Lysates
    Application: WB
  2. The B30.2 domain of pyrin, the familial Mediterranean fever protein, interacts directly with caspase-1 to modulate IL-1beta production.
    Authors: Chae JJ, Wood G, Masters SL, Richard K, Park G, Smith BJ, Kastner DL
    Proc. Natl. Acad. Sci. U.S.A., 2006;103(26):9982-7.
    Species: Human
    Sample Type: Cell Lysates
    Application: WB
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Rabbit Anti-Goat IgG Biotinylated Antibody

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Donkey Anti-Goat IgG (H+L) PerCP-conjugated Antibody

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