Human IL-18/IL-1F4 Propeptide Antibody

Catalog # Availability Size / Price Qty
AF646
AF646-SP
Product Details
Citations (3)
FAQs
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Human IL-18/IL-1F4 Propeptide Antibody Summary

Species Reactivity
Human
Specificity
Detects the pro region of human IL‑18/IL‑1F4 in direct ELISAs and Western blots. In these formats, approximately 5% cross‑reactivity with mature recombinant human IL-18 is observed and less than 1% cross‑reactivity with mature recombinant mouse IL-18 and recombinant rat IL‑18 is observed.
Source
Polyclonal Goat IgG
Purification
Antigen Affinity-purified
Immunogen
E. coli-derived recombinant human IL‑18/IL‑1F4
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
0.1 µg/mL
Recombinant human IL‑18/IL‑1F4 Propeptide

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.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Preparation and Storage

Reconstitution
Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
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: IL-18/IL-1F4

Pro-IL-18 (pro-Interleukin 18; also pro-IGIF and pro-IL-1 gamma ) is a 24 kDa member of the IL-1 family of molecules. It is widely expressed, being produced by keratinocytes, intestinal epithelium, T cells, macrophages and osteoblasts. Human Pro-IL-18 is 193 amino acids (aa) in length. Although mature IL-18 induces IFN-gamma secretion by NK and T cells, Pro-IL-18 appears to have little intrinsic activity. Generally, active IL-18 is considered to arise from caspase-1 cleavage of Pro-IL-18 between Asp36-Tyr37. This generates an 18 kDa mature C-terminal fragment, and a 4 kDa (predicted) N-terminal prosegment that runs at 6 kDa in SDS-PAGE. Other proteases are known to process Pro-IL-18. Caspase-3 cleavage after Asp68 generates an inactive 14 kDa mature segment, Merpin beta -subunit cleavage after Asn52 generates a marginally active 17 kDa mature segment, while parasite Cys protease cleavage after Val47 generates an inactive 17 kDa mature molecule. One splice variant shows a deletion of aa 27-30. Over aa 2-36, human Pro-IL-18 shares 63% aa identity with mouse Pro-IL-18.

Long Name
Interleukin 18
Entrez Gene IDs
3606 (Human); 16173 (Mouse); 29197 (Rat); 397057 (Porcine); 574151 (Primate)
Alternate Names
Iboctadekin; IFN-gamma-inducing factor; IGIF; IGIFIL-1 gamma; IL18; IL-18; IL-18MGC12320; IL-1F4; IL1F4iboctadekin; IL-1g; Interferon gamma-inducing factor; interleukin 18 (interferon-gamma-inducing factor); Interleukin-1 gamma; interleukin-18

Product Datasheets

Citations for Human IL-18/IL-1F4 Propeptide Antibody

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.

3 Citations: Showing 1 - 3
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  1. Differentiation of human SH-SY5Y neuroblastoma cells by all-trans retinoic acid activates the interleukin-18 system.
    Authors: Sallmon H, Hoene V, Weber SC, Dame C
    J. Interferon Cytokine Res., 2010;30(2):55-8.
    Species: Human
    Sample Types: Whole Cells
    Applications: ICC
  2. Myocarditis in CD8-depleted SIV-infected rhesus macaques after short-term dual therapy with nucleoside and nucleotide reverse transcriptase inhibitors.
    Authors: Annamalai L, Westmoreland SV, Domingues HG
    PLoS ONE, 2010;5(12):e14429.
    Species: Primate - Macaca mulatta (Rhesus Macaque)
    Sample Types: Whole Tissue
    Applications: IHC Paraffin-embedded
  3. Interleukin-18 predicts atherosclerosis progression in SIV-infected and uninfected rhesus monkeys (Macaca mulatta) on a high-fat/high-cholesterol diet.
    Authors: Yearley JH, Xia D, Pearson CB, Carville A, Shannon RP, Mansfield KG
    Lab. Invest., 2009;89(6):657-67.
    Species: Primate - Macaca mulatta (Rhesus Macaque)
    Sample Types: Whole Tissue
    Applications: IHC Paraffin-embedded

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