Human IL-18 BP ELISA Kit (Interleukin-18 Binding Protein) (ab100559)


  • Product nameHuman IL-18 BP ELISA Kit (Interleukin-18 Binding Protein)
  • Detection methodColorimetric
  • Tests
    1 x 96 well plate
  • Sample type
    Cell culture supernatant, Serum, Plasma
  • Assay typeSandwich (quantitative)
  • Sensitivity
    < 20 pg/ml
  • Range
    24.69 pg/ml - 18000 pg/ml
  • Recovery

    91 %

    Sample specific recovery
    Sample type Average % Range
    Cell culture supernatant 106.7 96% - 121%
    Serum 83.5 74% - 97%
    Plasma 82.3 72% - 96%

  • Assay durationMultiple steps standard assay
  • Species reactivity
    Reacts with: Human
  • Product overview

    Abcam’s IL-18 BP (Interleukin-18 Binding Protein) Human ELISA (Enzyme-Linked Immunosorbent Assay) kit is an in vitro enzyme-linked immunosorbent assay for the quantitative measurement of Human IL-18 BP in serum, plasma, and cell culture supernatants.

    This assay employs an antibody specific for Human IL-18 BP coated on a 96-well plate. Standards and samples are pipetted into the wells and IL-18 BP present in a sample is bound to the wells by the immobilized antibody. The wells are washed and biotinylated anti-Human IL-18 BP antibody is added. After washing away unbound biotinylated antibody, HRP-conjugated streptavidin is pipetted to the wells. The wells are again washed, a TMB substrate solution is added to the wells and color develops in proportion to the amount of IL-18 BP bound. The Stop Solution changes the color from blue to yellow, and the intensity of the color is measured at 450 nm.

  • Notes

    Optimization may be required with urine samples.

  • Tested applicationsSuitable for: Sandwich ELISAmore details
  • PlatformMicroplate


  • FunctionIsoform A binds to IL-18 and inhibits its activity. Functions as an inhibitor of the early TH1 cytokine response.
  • Tissue specificityStrongly expressed in heart, lung, placenta and spleen.
  • Sequence similaritiesContains 1 Ig-like C2-type (immunoglobulin-like) domain.
  • Cellular localizationSecreted.
  • Information by UniProt
  • Alternative names
    • I18BP_HUMAN
    • IL-18BP
    • IL18 BP
    • IL18 BPa
    • IL18BP
    • IL18BPa
    • Interleukin 18 binding protein
    • Interleukin-18-binding protein
    • MC51L 53L 54L homolog gene product
    • Tadekinig alfa
    • Tadekinig-alfa
    see all
  • Database links


Our Abpromise guarantee covers the use of ab100559 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
Sandwich ELISA Use at an assay dependent concentration.

Human IL-18 BP ELISA Kit (Interleukin-18 Binding Protein) images

  • Representative standard curve using ab100559

  • Representative standard curve using ab100559


References for Human IL-18 BP ELISA Kit (Interleukin-18 Binding Protein) (ab100559)

ab100559 has not yet been referenced specifically in any publications.

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