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IL-18 Protein (AA 37-193)

IL18 Origin: Human Host: Escherichia coli (E. coli) Recombinant >98 % (SDS-PAGE)
Catalog No. ABIN7278714
  • Target See all IL-18 (IL18) Proteins
    IL-18 (IL18) (Interleukin 18 (IL18))
    Protein Type
    Recombinant
    Protein Characteristics
    AA 37-193
    Origin
    • 17
    • 5
    • 4
    • 3
    • 3
    • 2
    • 2
    • 2
    • 2
    • 1
    • 1
    • 1
    Human
    Source
    • 26
    • 9
    • 3
    • 2
    • 1
    Escherichia coli (E. coli)
    Purpose
    IL-18 (human) (rec.)
    Specificity
    Human IL-18 (aa 37-193).
    Characteristics
    Protein. Human IL-18 (aa 37-193). Source: E. coli. Endotoxin content: <0.06EU/μg purified protein (LAL test, Lonza). Lyophilized from 0.2μm-filtered solution in 1X PBS. Purity: >98 % (SDS-PAGE). Interleukin-18 (IL-18) is a costimulatory factor for production of interferon-gamma (IFN-gamma) in response to toxic shock and shares functional similarities with IL-12. IL-18 is synthesized as a precursor 24  kDa molecule without a signal peptide and must be cleaved to produce an active molecule. IL-1 converting enzyme (ICE, Caspase-1) cleaves pro-IL-18 at aspartic acid in the P1 position, producing the mature, bioactive peptide that is readily released from the cells. It is reported that IL-18 is produced from Kupffer cells, activated macrophages, keratinocytes, intestinal epithelial cells, osteoblasts, adrenal cortex cells and murine diencephalon. IFN-gamma is produced by activated T or NK cells and plays critical roles in the defense against microbiral pathogens. IFN-gamma activates macrophages and enhances NK activity and B cell maturation, proliferation and Ig secretion. IFN-gamma also induces expression of MHC class I and II antigens and inhibits osteoclast activation. IL-18 acts on T helper type-1 (Th1) T cells and in combination with IL-12 strongly induces them to produce IFN-gamma. Pleiotropic effects of IL-18 have also been reported, such as enhancement production of IFN-gamma and GM-CSF in peripheral blood mononuclear cells, production of Th1 cytokines, IL-2, GM-CSF, IFN-gamma in T cells and enhancement of Fas ligand expression by Th1 cells.
    Purity
    >98 % (SDS-PAGE)
    Endotoxin Level
    <0.06EU/μg purified protein (LAL test, Lonza).
    Top Product
    Discover our top product IL18 Protein
  • Restrictions
    For Research Use only
  • Format
    Lyophilized
    Concentration
    Lot specific
    Buffer
    Lyophilized from 0.2μm-filtered solution in 1X PBS.
    Handling Advice
    Avoid freeze/thaw cycles.
    Storage
    4 °C,-20 °C
    Storage Comment

    Short Term Storage: +4°C

    Long Term Storage: -20°C

    Use & Stability: Stable for at least 1 year after receipt when stored at -20°C. Working aliquots are stable for up to 3 months when stored at -20°C.

  • Target
    IL-18 (IL18) (Interleukin 18 (IL18))
    Alternative Name
    IL-18 (IL18 Products)
    Synonyms
    Igif Protein, Il-18 Protein, IL-18 Protein, IGIF Protein, ChIL-18 Protein, IL-1g Protein, IL1F4 Protein, IL18 Protein, interleukin 18 Protein, Il18 Protein, IL18 Protein
    Background

    Alternate Names/Synonyms: Interleukin-18, Interferon-gamma-inducing Factor, IGIF, IL-1gamma, IL1F4

    Product Description: Interleukin-18 (IL-18) is a costimulatory factor for production of interferon-gamma (IFN-gamma) in response to toxic shock and shares functional similarities with IL-12. IL-18 is synthesized as a precursor 24  kDa molecule without a signal peptide and must be cleaved to produce an active molecule. IL-1 converting enzyme (ICE, Caspase-1) cleaves pro-IL-18 at aspartic acid in the P1 position, producing the mature, bioactive peptide that is readily released from the cells. It is reported that IL-18 is produced from Kupffer cells, activated macrophages, keratinocytes, intestinal epithelial cells, osteoblasts, adrenal cortex cells and murine diencephalon. IFN-gamma is produced by activated T or NK cells and plays critical roles in the defense against microbiral pathogens. IFN-gamma activates macrophages and enhances NK activity and B cell maturation, proliferation and Ig secretion. IFN-gamma also induces expression of MHC class I and II antigens and inhibits osteoclast activation. IL-18 acts on T helper type-1 (Th1) T cells and in combination with IL-12 strongly induces them to produce IFN-gamma. Pleiotropic effects of IL-18 have also been reported, such as enhancement production of IFN-gamma and GM-CSF in peripheral blood mononuclear cells, production of Th1 cytokines, IL-2, GM-CSF, IFN-gamma in T cells and enhancement of Fas ligand expression by Th1 cells.

    Molecular Weight
    ~18kDa
    NCBI Accession
    NP_001553
    Pathways
    Cellular Response to Molecule of Bacterial Origin, Activated T Cell Proliferation, Cancer Immune Checkpoints, Inflammasome
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