Human IL-4 ELISA Kit

For detection and measurement of human interleukin 4
概要
The Human Interleukin 4 (IL-4) ELISA Kit is designed for the quantitative detection and measurement of human IL-4 in biological fluids such as serum, plasma, and cell culture supernatants. IL-4 is produced by Th2 cells, NK cells, γ/δ T cells, eosinophils, mast cells, and activated basophils. IL-4 induces Ig isotype switching in B cells, regulates the differentiation of naïve T cells into Th2 cells, and in conjunction with TNF, recruits T cells and eosinophils to sites of inflammation.

The assay is based on the sandwich ELISA method, in which samples are added to ELISA strip plates pre-coated with capture antibodies specific for the cytokine. The captured cytokine is detected by addition of a biotinylated detection antibody, followed by streptavidin-horseradish peroxidase, which binds the biotinylated antibody. Addition of the chromogenic enzyme substrate 3,3’,5,5’ tetramethylbenzidine (TMB) results in a colored product with an intensity directly proportional to the concentration of cytokine in the sample. The concentration of the cytokine is determined by comparison to a serial dilution of the cytokine standard analyzed in parallel.
Components
  • Human IL-4 ELISA Kit, 2 plates (Catalog #02008)
    • Human IL-4 ELISA Plate, 2x
    • Human IL-4 Standard, 1 vial
    • Human IL-4 Biotinylated Detection Antibody, 30 µL
    • SA-HRP, 30 µL
    • Standard Reconstitution Buffer B, 1 mL
    • Wash Buffer (20X), 120 mL
    • ELISA Diluent, 120 mL
    • SA-HRP Diluent, 25 mL
    • TMB Substrate, 25 mL
    • Stop Solution, 25 mL
    • Adhesive Plate Covers, 6x
 
  • Human IL-4 ELISA Kit, 10 plates (Catalog #02009)
    • Human IL-4 ELISA Plate, 10x
    • Human IL-4 Standard, 1 vial
    • Human IL-4 Biotinylated Detection Antibody, 130 µL
    • SA-HRP, 130 µL
    • Standard Reconstitution Buffer B, 1 mL
    • Wash Buffer (20X), 5 x 120 mL
    • ELISA Diluent, 3 x 120 mL
    • SA-HRP Diluent, 120 mL
    • TMB Substrate, 120 mL
    • Stop Solution, 120 mL
    • Adhesive Plate Covers, 30x
Subtype
Complete Kits
Cell Type
Granulocytes and Subsets, NK Cells, T Cells, Other Subsets
Species
Human
Application
ELISA
Area of Interest
Immunology
数据及文献

Data

Representative Standard Curve

• Reportable range: 10 - 1000 pg/mL. This is the concentration range in which measurement of the analyte can be done with the highest precision, accuracy, and linearity.
• Sensitivity: The limit of detection of this assay is 5 pg/mL. This is the analyte concentration with absorbance two standard deviations higher than the zero standard.
• Accuracy: The analyte standard of this ELISA was calibrated against NIBSC* international standard 88/656.
• Recovery: A mid-curve recovery of 94 - 107% was determined by spiking defined amounts of analyte standard into serum or plasma samples in repeated experiments.
• Precision: The intra-assay precision of this assay is 3.5% (CV). The inter-assay precision of this assay is 7.3% (CV).

*National Institute of Biological Standards and Control, Potters Bar, Hertfordshire EN6 3QG, UK.

Top