Human Interleukin 7 (IL7) ELISA Kit
Principle of the Assay
The microtiter plate provided in this kit has been pre-coated with an antibody specific to IL7. Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody preparation specific to IL7. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After the TMB substrate solution is added, only those wells that contain IL7, biotin-conjugated antibody, and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution, and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of IL7 in the samples is then determined by comparing the O.D. of the samples to the standard curve.
For Use with serum, plasma, and cell culture supernatants. For Research Use Only. Not for use in diagnostic procedures.
Target Information
Hematopoietic cytokine that plays an essential role in the development, expansion, and survival of naive and memory T-cells and B-cells thereby regulating the number of mature lymphocytes and maintaining lymphoid homeostasis (PubMed:7527823, PubMed:25870237). Mechanistically, exerts its biological effects through a receptor composed of IL7RA subunit and the cytokine receptor common subunit gamma/CSF2RG (PubMed:8128231). Binding to the receptor leads to activation of various kinases including JAK1 or JAK3 depending on the cell type and subsequently propagation of signals through activation of several downstream signaling pathways including the PI3K/Akt/mTOR or the JAK-STAT5 (PubMed:18523275, PubMed:20974963).
GENE ID | 3574 |
SWISS PROT | P13232 |
SYNONYMS |
Pre-B-cell Growth Factor; Lymphopoietin-1 |
Materials Supplied
Kit Components | 96 Wells Quantity/Size |
---|---|
Pre-coated, ready-to-use 96-well strip plate | 1 plate |
Plate sealer for 96 wells | 2 |
Standard |
2 tubes |
Diluent buffer | 1 bottle |
Detection Reagent A | 1 bottle |
Detection Reagent B | 1 bottle |
TMB Substrate | 1 tube |
Stop Solution | 1 tube |
Wash Buffer (30 ℅ concentrate) | 1 tube |
Product data sheet | 1 copy |
Storage
Storage | The TMB Substrate, Wash Buffer (30X concentrate), and the Stop Solution should be stored at 4°C upon receipt, while the other items should be stored at -20°C. |
Performance Characteristics
REPEATABILITY |
Intra-assay Precision (Precision within an assay): 3 samples with low, middle, and high-level IL7 were tested 20 times on one plate, respectively. |
SENSITIVITY | The minimum detectable dose was 5.7pg/mL. |
ASSAY RANGE | 15.6-1000pg/mL |
SPECIFICITY | This assay has high sensitivity and excellent specificity for the detection of IL7. No significant cross-reactivity or interference between IL7 and analogs was observed. Note: Limited by current skills and knowledge, it is impossible to perform all possible cross-reactivity detection tests between IL7 and all analogs, therefore, cross reactivity may still exist. |