Rat IL-4 ELISA Kit (48-well)

CAT#: EA100165

Rat IL-4 ELISA Kit (48-well)

Specifications

Product Data

• Format: 48-well strip plate
• Assay Type: Solid Phase Sandwich ELISA
• Assay Length: 3 hour
• Signal: Colorimetric
• Curve Range: 0.02 - 1.0 ng/mL
• Sample Type: Cell culture supernatant, serum, plasma (EDTA, citrate, heparin)
• Sample Volume: 20 uL
• Specificity: Natural and recombinant Rat IL-4 Ligand
• Sensitivity: 7pg/mL
• Reactivities: Rat
• Interference: No significant interference observed with available related molecules.
• Components:
  • Aluminium pouches with a Microwell Plate coated with monoclonal antibody to rat IL-4 (8 6)
  • 2 vials rat IL-4 Standard lyophilized,1000 pg/ml upon reconstitution
  • 2 vials concentrated Biotin-Conjugate anti-rat IL-4 antibody
  • 2 vials Streptavidin-HRP solution,
  • 1 bottle Standard /sample Diluent
  • 1 bottle Biotin-Conjugate antibody Diluent
  • 1 bottle Streptavidin-HRP Diluent
  • 1 bottle Wash Buffer Concentrate 20x (PBS with 1% Tween-20)
  • 1 vial Substrate Solution
  • 1 vial Stop Solution
  • 3 pieces Adhesive Films
  • package insert
• Background:

  Interleukin 4 (IL-4) is a pleiotropic cytokine produced primarily by activated T lymphocytes, mast cells and basophils .

  The cDNA sequence of rat IL-4 predicts a 147 amino acid (aa) residue precursor protein containing a 24 aa residue signal peptide that is cleaved to generate the 123 aa residue mature protein containing four potential N-linked glycosylation sites and seven cysteine residues . Mature rat IL-4 shares 60% and 44% amino acid sequence similarity with mouse and human IL-4, respectively .

  IL-4 has multiple immune response-modulating activities on a variety of cell types. It is an important regulator of isotype switching, inducing IgE production in B lymphocytes. It is an important modulator of the differentiation of precursor T helper cells to the Th2 subset that mediates humoral immunity and modulates antibody production. In addition, IL-4 has also been shown to have anti-tumor activity both in vivo and in vitro .

  The biological effects of IL-4 are mediated by specific cell surface receptor complexes. Although IL-4 R does not bind IL-13 directly, it has been shown to complex with the low-affinity IL-13 R to form the functional high-affinity receptor complex for IL-13 . In addition to the membrane-bound form of IL-4 R, a naturally occurring soluble form of IL-4 R has been identified in human and mouse biological fluids and in mouse cell culture supernates . Soluble IL-4 R has been to shown to bind IL-4 with high affinity in solution.

• Gene Symbol: Il4
• Standard Curve:
  
  Representative standard curve for IL-4 ELISA. IL-4 was diluted in serial two-fold steps in Sample Diluent.