Transforming Growth Factor-beta 2 (TGF-beta 2), BioAssay(TM) ELISA Kit (Human)

Transforming growth factor-beta 2(TGF-beta 2) is a secreted protein known as a cytokine that performs many cellular functions and has a vital role during embryonic development. This gene is mapped to 1q41. It is an extracellular glycosylated protein. It is known to suppress the effects of interleukin dependent T-cell tumors. TGF-beta 2 is present at elevated levels in the aqueous humor of patients with primary open angle glaucoma(POAG). Studies have shown that TGF-beta 2 influences cultured trabecular meshwork cells, and it reduced outflow facility when perfused into cultured human anterior segments. In POAG, elevated expression of Gremlin by TM cells inhibited BMP4 antagonism of TGF-beta 2 and led to increased extracellular matrix deposition and elevated IOP. Sample Type: Cell culture supernates, serum and plasma (heparin, EDTA, citrate). Intended Use: For quantitative detection of activated human TGF-beta 2 in cell culture supernates, serum and plasma(heparin, EDTA, citrate). Sensitivity: <10pg/ml, Range: 31.2-2000pg/ml, Specificity: Natural and recombinant human TGF-beta 2, Test Principle: This human TGF-beta 2 BioAssay(TM) ELISA Kit was based on standard sandwich enzyme-linked immune-sorbent assay technology. A monoclonal antibody from mouse specific for TGF-beta 2 has been precoated onto 96-well plates. Standards(NSO) and test samples are added to the wells, a biotinylated detection polyclonal antibody from goat specific for TGF-beta 2 is added subsequently and then followed by washing with PBS or TBS buffer. Avidin-Biotin-Peroxidase Complex was added and unbound conjugates were washed away with PBS or TBS buffer. HRP substrate TMB was used to visualize HRP enzymatic reaction. TMB was catalyzed by HRP to produce a blue color product that changed into yellow after adding acidic stop solution. The density of yellow is proportional to the human TGF-beta 2 amount of sample captured in plate. Kit Components: 96-well plate precoated with human TGF-beta 2 antibody, 1, Lyophilized recombinant human TGF-beta 2 standard, 10ng/tubex2, Biotinylated human TGF-beta 2 antibody, 130ul (dilution 1:100), Avidin-Biotin-Peroxidase Complex(ABC), 130ul (dilution 1:100), Sample diluent buffer, 30ml, Antibody diluent buffer, 12ml, ABC diluent buffer, 12ml, TMB color developing agent, 10ml, TMB stop solution, 10ml, Storage and Stability: Store powder at 4°C liquid at -20°C. Store other components at 4°C. Stable for at least 6 months For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.