Overview

  • Product nameHuman IL-21 ELISA Kit (Interleukin-21)
    See all IL21 kits
  • Detection methodColorimetric
  • Precision
    Intra-assay
    Sample n Mean SD CV%
    Overall 8 5.8%
    Inter-assay
    Sample n Mean SD CV%
    Overall 8 7.7%
  • Tests
    1 x 96 test
  • Sample type
    Cell culture supernatant, Serum, Plasma
  • Assay typeSandwich (quantitative)
  • Sensitivity
    20 pg/ml
  • Range
    78 pg/ml - 5000 pg/ml
  • Recovery

    Sample specific recovery
    Sample type Average % Range
    Cell culture supernatant 95 % - %
    Serum 71 % - %

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

    Abcam’s IL-21 (Interleukin-21) Human in vitro ELISA (Enzyme-Linked Immunosorbent Assay) kit is designed for accurate quantitative measurement of Human IL-21 (Interleukin-21)concentrations in Cell culture supernatant, serum and plasma (EDTA, citrate).

    IL-21 specific antibodies have been precoated onto 96-well plates. Standards and test samples are added to the wells along with a biotin-conjugated IL-21 detection antibody then incubated at room temperature. Following washing, a Streptavidin-HRP conjugate is added to each well, incubated at room temperature and washed. TMB is added and then catalyzed by HRP to produce a blue color product that changes into yellow after addition of acidic stop solution. The density of yellow coloration is directly proportional to the amount of IL-21 captured on the plate.

  • Tested applicationsSuitable for: Sandwich ELISAmore details
  • PlatformMicroplate

Properties

  • RelevanceA novel cytokine related to IL2 and IL15 was recently identified and designated IL21. IL21 has been found to be a powerful growth factor for naive B cells. The receptor for IL21 (IL21R, also termed NILR for novel Interleukin receptor) is a new member of the class I cytokine receptor family. IL21R forms a complex with the common cytokine receptor g chain, gc, and mediates IL21 signaling. Both IL21R and the gc are necessary for the IL21 function. IL21 and its receptor activate JAKSTAT signaling pathway. IL21R is expressed in spleen, thymus, natural killer (NK), T and B cell lines. IL21 plays a role in the proliferation and maturation of NK, B and T cell populations.
  • Cellular localizationSecreted
  • Alternative names
    • Cytokine CX2
    • DN 452A22.7
    • IL 21
    • Interleukin 21
    • Interleukin 21 isoform
    • Interleukin21
    • OTTMUSP00000007838
    • Za11
    see all
  • Database links

Applications

Our Abpromise guarantee covers the use of ab119542 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-21 ELISA Kit (Interleukin-21) images

  • Representative Standard Curve using ab119542.

Protocols

References for Human IL-21 ELISA Kit (Interleukin-21) (ab119542)

ab119542 has not yet been referenced specifically in any publications.

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