製品の概要

  • 製品名

  • 検出方法

    Colorimetric
  • 再現性

    Intra-Assay(同時再現性)
    サンプル N 平均値 SD CV%
    Serum 3 4%
    Inter-Assay(日差再現性)
    サンプル N 平均値 SD CV%
    Serum 5 4.2%
  • サンプルの種類

    Serum, Cell culture media, Cit plasma
  • アッセイタイプ

    Sandwich (quantitative)
  • 検出感度

    4.9 pg/ml
  • 検出範囲

    31.25 pg/ml - 2000 pg/ml
  • 添加回収試験

    特定サンプルでの回収試験
    サンプルの種類 平均 % 測定範囲
    Serum 93 89% - 100%
    Tissue Extracts 45 43% - 48%
    Cell culture media 108 99% - 113%
    Cit plasma 86 84% - 88%

  • 全工程の試験時間

    1h 30m
  • ステップ

    One step assay
  • 種交差性

    交差種: Rat
  • 製品の概要

    IL-2 in vitro SimpleStep ELISA® (Enzyme-Linked Immunosorbent Assay) kit is designed for the quantitative measurement of IL-2 protein in rat serum, plasma, and cell culture supernatant samples.


    The SimpleStep ELISA® employs an affinity tag labeled capture antibody and a reporter conjugated detector antibody which immunocapture the sample analyte in solution. This entire complex (capture antibody/analyte/detector antibody) is in turn immobilized via immunoaffinity of an anti-tag antibody coating the well. To perform the assay, samples or standards are added to the wells, followed by the antibody mix. After incubation, the wells are washed to remove unbound material. TMB substrate is added and during incubation is catalyzed by HRP, generating blue coloration. This reaction is then stopped by addition of Stop Solution completing any color change from blue to yellow. Signal is generated proportionally to the amount of bound analyte and the intensity is measured at 450 nm. Optionally, instead of the endpoint reading, development of TMB can be recorded kinetically at 600 nm.


    Sensitivity:
    Samples diluted in Sample Diluent NS - 4.9 pg/mL
    Samples diluted in Sample Diluent 60BS - 12.5 pg/mL

  • 特記事項

    IL-2, also known as T cell growth factor (TCGF), is a glycosylated alpha-helical monomeric polypeptide. It is secreted by activated CD4+ and CD8+ T cells, neurons, microglia and hematopoietic stem cells in response to antigenic or mitogenic stimulation. IL-2 is required for T-cell proliferation, natural killer cell (NK) cytolytic activity, differentiation of regulatory T cells, modulation of T helper (Th) cell differentiation and activation-induced cell death. In particular, IL-2 modulates the expression of receptors for other cytokines and transcription factors, thereby regulating cytokine cascades that correlate with each of the Th differentiation states. Complete deficiency of IL-2 has been implicated in severe combined immunodeficiency, whereas reduction of IL-2 correlates with reduced function of CD4+CD25+ regulatory T cells and destabilization of immune homeostasis leading to autoimmune disease. Increased expression of IL-2 has also been implicated in inflammatory conditions such as inflammatory bowel disease and chronic liver diseases.

  • アプリケーション

    適用あり: Sandwich ELISAmore details
  • 試験プラットフォーム

    Microplate (12 x 8 well strips)

製品の特性

  • 保存方法

    Store at +4°C. Please refer to protocols.
  • 内容 1 x 96 tests
    10X Rat IL-2 Capture Antibody 1 x 600µl
    10X Rat IL-2 Detector Antibody 1 x 600µl
    10X Wash Buffer PT (ab206977) 1 x 20ml
    Antibody Diluent 4BI 1 x 6ml
    Plate Seals 1 unit
    SimpleStep Pre-Coated 96-Well Microplate (ab206978) 1 unit
    Rat IL-2 Lyophilized Recombinant Protein 2 vials
    Sample Diluent 75BS 1 x 20ml
    Sample Diluent NS (ab193972) 1 x 50ml
    Stop Solution 1 x 12ml
    TMB Development Solution 1 x 12ml
  • 研究分野

  • 機能

    Produced by T-cells in response to antigenic or mitogenic stimulation, this protein is required for T-cell proliferation and other activities crucial to regulation of the immune response. Can stimulate B-cells, monocytes, lymphokine-activated killer cells, natural killer cells, and glioma cells.
  • 関連疾患

    Note=A chromosomal aberration involving IL2 is found in a form of T-cell acute lymphoblastic leukemia (T-ALL). Translocation t(4;16)(q26;p13) with involves TNFRSF17.
  • 配列類似性

    Belongs to the IL-2 family.
  • 細胞内局在

    Secreted.
  • Information by UniProt
  • 別名

    • Aldesleukin
    • IL 2
    • IL-2
    • IL2
    • IL2_HUMAN
    • Interleukin 2
    • Interleukin-2
    • interleukin2
    • Involved in regulation of T cell clonal expansion
    • Lymphokine
    • OTTHUMP00000164090
    • POIL2
    • T Cell Growth Factor
    • T-cell growth factor
    • TCGF
    see all
  • 参照データベース

アプリケーション

Our Abpromise guarantee covers the use of ab221834 in the following tested applications.

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

アプリケーション Abreviews 特記事項
Sandwich ELISA Use at an assay dependent concentration.

画像

  • SimpleStep ELISA technology allows the formation of the antibody-antigen complex in one single step, reducing assay time to 90 minutes. Add samples or standards and antibody mix to wells all at once, incubate, wash, and add your final substrate. See protocol for a detailed step-by-step guide.

     

  • Example of rat IL-2 standard curve in Sample Diluent NS. Background-subtracted data values (mean +/- SD) are graphed.

  • Example of rat IL-2 standard curve in Sample Diluent 60BS. Background-subtracted data values (mean +/- SD) are graphed.

  • Interpolated concentrations of native IL-2 in Concanavalin A treated rat spleen (2 days) supernatant samples. The concentrations of IL-2 were measured in duplicates, interpolated from the IL-2 standard curves and corrected for sample dilution. Undiluted samples are as follows: spleen supernatant 25%. The interpolated dilution factor corrected values are plotted (mean +/- SD, n=2). The mean IL-2 concentration was determined to be 6401 pg/mL in Concanavalin A treated rat spleen supernatant.

     

     

  • Interpolated concentrations of spiked IL-2 in rat serum and plasma samples. The concentrations of IL-2 were measured in duplicates, interpolated from the IL-2 standard curves and corrected for sample dilution. Undiluted samples are as follows: serum 50%, plasma (citrate) 50%. The interpolated dilution factor corrected values are plotted (mean +/- SD, n=2).

  • Comparison of IL-2 in unstimulated and Concanavalin A stimulated rat spleen supernatants. Rat spleen was cultured for 2 days in the presence or absence of 5 µg/mL Concanavalin A. The concentrations of IL-2 were measured in three different dilutions of the supernatant samples in duplicates and interpolated from the IL-2 standard curve. The interpolated values are plotted (mean +/- SD, n=3). The mean IL-2 concentration was determined to be 6042 pg/mL in Concanavalin A stimulated neat rat spleen supernatant and undetectable in unstimulated rat spleen supernatant and RPMI media (not shown).

プロトコール

参考文献

This product has been referenced in:

  • Alkhedaide AQ Anti-inflammatory Effect of Juniperus Procera Extract in Rats Exposed to Streptozotocin Toxicity. Antiinflamm Antiallergy Agents Med Chem 18:71-79 (2019). Read more (PubMed: 30474537) »
  • Alam MF  et al. Thymoquinone Ameliorates Doxorubicin-Induced Cardiotoxicity in Swiss Albino Mice by Modulating Oxidative Damage and Cellular Inflammation. Cardiol Res Pract 2018:1483041 (2018). Read more (PubMed: 29805796) »
See all 3 Publications for this product

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