Invitrogen™ IL-4 Human ELISA Kit

For the quantitative detection of human IL-4.

Supplier:  Invitrogen™ BMS2252

Catalog No. 50-180-73

Includes: Aluminum pouch(es) with a Microwell Plate coated with monoclonal antibody to human IL-4
Biotin-Conjugate anti-human IL-4 monoclonal antibody
Streptavidin-HRP
Human IL-4 Standard lyophilized, 1ng/mL upon reconstitution
Assay Buffer Concentrate 20x (PBS with 1% Tween 20 and 10% BSA)
Wash Buffer Concentrate 20x (PBS with 1% Tween 20)
Substrate Solution (tetramethyl-benzidine)
Stop Solution (1M Phosphoric acid)
Blue-Dye
Green-Dye
Red-Dye
Adhesive Films

Description

The Human Interleukin-4 (Hu IL-4) ELISA quantitates Hu IL-4 in human serum, plasma, urine or cell culture medium. The assay will exclusively recognize both natural and recombinant Hu IL-4. Principle of the method The Human IL-4 solid-phase sandwich ELISA (enzyme-linked immunosorbent assay) is designed to measure the amount of the target bound between a matched antibody pair. A target-specific antibody has been pre-coated in the wells of the supplied microplate. Samples, standards, or controls are then added into these wells and bind to the immobilized (capture) antibody. The sandwich is formed by the addition of the second (detector) antibody, a substrate solution is added that reacts with the enzyme-antibody-target complex to produce measurable signal. The intensity of this signal is directly proportional to the concentration of target present in the original specimen. Rigorous validation Each manufactured lot of this ELISA kit is quality tested for criteria such as sensitivity, specificity, precision, and lot-to-lot consistency. See manual for more information on validation.

Interleukin-4 (IL-4) is a pleiotropic, immune-modulatory cytokine produced by activated T cells, and serves as a ligand for interleukin 4 receptor. IL-4 has been found to have the broadest range of actions. The interleukin 4 receptor also binds to IL13, which may contribute to many overlapping functions of this cytokine and IL13. STAT6, a signal transducer and activator of transcription, has been shown to play an important role in mediating the immune regulatory signal of IL-4. The IL-4 gene, IL-3, IL-5, IL-13, and CSF2 form a cytokine gene cluster on chromosome 5q. In particular, IL-4 is located in close proximity to IL13 on the chromosome. Further, the IL-4 gene, IL13 and IL5 are found to be coordinated by several long-range regulatory elements over a 120 kilobase range on the chromosome. IL-4 delta 2 is a known splice variant of IL-4.

Specifications

• Accession Number: P05112
• Assay Sensitivity: 1.3 pg/mL
• Product Type: ELISA Kit
• Target Species: Human
• For Use With (Equipment): Colorimetric Microplate Reader
• Gene Symbol: BCGF-1,BCGF1,BSF-1,BSF1,IL-4
• Intraassay CV: 4.8%
• Label or Dye: HRP
• Regulatory Status: RUO
• Storage Requirements: 2°C to 8°C
• Target: Human
• Total Assay Time: 3 hr. 10 min.

• Assay Range: 7.8-500 pg/mL
• Conjugate: Biotin
• Sample Type: Plasma, Serum, Supernatant
• For Use With (Application): ELISA
• Gene ID (Entrez): 3565
• Interassay CV: 5.6%
• Kit Contents: Pre-coated 96 well plate, Standard, Sample Diluent, Assay Buffer concentrate, Biotinylated Detection Antibody, SAV-HRP, Wash Buffer, Chromogen, Stop Solution, Adhesive Plate Covers
• Quantity: 96 Tests
• Sample Volume: Plasma, 50 μL; Serum, 50 μL; Supernatant, 50 μL
• Synonym: B-cell stimulatory factor 1, B cell growth factor 1
• Test Time: 1 hr. 20 min.

For Research Use Only