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  • Anti-CST4 antibody

Anti-CST4 antibody

Cat.#: 143020

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Product Information

  • Product Name
    Anti-CST4 antibody
  • Documents
  • Description
    Mouse Monoclonal to Human CST4
  • Tested applications
    ELISA
  • Species reactivity
    Human Cystatin S / CST4
  • Alternative names
    cystatin-4 antibody; CST4 antibody; Cystatin S antibody; cystatin-SA-III antibody; MGC71923 antibody
  • Immunogen
  • Preparation
    This antibody was produced from a hybridoma resulting from the fusion of a mouse myeloma with B cells obtained from a mouse immunized with purified, recombinant Human Cystatin S / CST4 . The IgG fraction of the cell culture supernatant was purified by Protein A affinity chromatography.
  • Clonality
    Monoclonal
  • Formulation
    0.2 μm filtered solution in PBS
  • Storage instructions
    This antibody can be stored at 2℃-8℃ for one month without detectable loss of activity. Antibody products are stable for twelve months from date of receipt when stored at -20℃ to -80℃. Preservative-Free.
    Sodium azide is recommended to avoid contamination (final concentration 0.05%-0.1%). It is toxic to cells and should be disposed of properly. Avoid repeated freeze-thaw cycles.
  • Applications

    ELISA(Det): 0.1-1 µg/ml

    This antibody will detect Human Cystatin S / CST4 in ELISA pair set . In a sandwich ELISA, it can be used as detection antibody when paired with .

  • Validations
  • Background
    Cystatin-S, also known as Cystatin-4, Salivary acidic protein 1, Cystatin-SA-III and CST4, is a secreted protein which belongs to the cystatin family. Cystatin-4 / CST4 is expressed in submandibular and sublingual saliva but not in parotid saliva (at protein level). It is also expressed in saliva, tears, urine and seminal fluid. The cystatin superfamily encompasses proteins that contain multiple cystatin-like sequences. Some of the members are active cysteine protease inhibitors, while others have lost or perhaps never acquired this inhibitory activity. There are three inhibitory families in the superfamily, including the type 1 cystatins (stefins), type 2 cystatins and the kininogens. The type 2 cystatin proteins are a class of cysteine proteinase inhibitors found in a variety of human fluids and secretions. Cystatin-4 / CST4 strongly inhibits papain and ficin, partially inhibits stem bromelain and bovine cathepsin C, but does not inhibit porcine cathepsin B or clostripain. Papain is inhibited non-competitively. Cystatin-4 / CST4 is an S-type cystatin, based on its high level of expression in saliva, tears and seminal plasma. The specific role in these fluids is unclear but antibacterial and antiviral activity is present, consistent with a protective function.

  • References

Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"