Species Reactivity : Human (Homo sapiens)
UniProt : N/A
Abbreviation : ACV-A
Alternative Names : N/A
Application : ELISA
Range : 12.35-1000 pg/mL
Sensitivity : 4.63 pg/mL
Intra-AssayCV : ?4.7%
Inter-AssayCV : ?8.6%
Recovery : 1.06
Sample Type : Serum, Plasma, Other biological fluids
Detection Method : Sandwich
Analysis Method?? : Quantitive
Test principle : This assay employs a two-site sandwich ELISA to quantitate ACV-A in samples. An antibody specific for ACV-A has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and anyACV-A present is bound by the immobilized antibody. After removing any unbound substances, a biotin-conj µgated antibody specific for ACV-A is added to the wells. After washing, Streptavidin conj µgated Horseradish Peroxidase (HRP) is added to the wells. Following a wash to remove any unbound avidin-enzyme reagent, a substrate solution is added to the wells and color develops in proportion to the amount of ACV-A bound in the initial step. The color development is stopped and the intensity of the color is measured.
Product Overview : Activin A, a cytokine member of the transforming growth factor-beta superfamily, is expressed locally by the mesenchymal component of the hemopoietic microenvironment. Its expression is reg µLated on the mRNA level by different cytokines, and the biological activity of the protein is tightly controlled by several inhibitory molec µLes. Activin A affects hemopoietic cells of various lineages, as evidenced by in vitro studies of leukemia and lymphoma cell lines, which were used to elucidate the mechanism of its action. In the B-cell lineage, activin A is a cell cycle inhibitor, a mediator of apoptosis, and a cytokine antagonist. Limited information is available on the effects of activin A on normal hemopoietic cells. Recent studies s µggest that it might be a negative reg µLator of normal B lymphopoiesis. Whereas the functions of activin A in vitro are well established, further research tools are needed to elucidate its role within specific hemopoietic microenvironments in vivo.
Stability : The stability of ELISA kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition. The loss rate was determined by accelerated thermal degradation test. Keep the kit at 37°C for 4 and 7 days, and compare O.D.values of the kit kept at 37°C with that of at recommended temperature. (referring from China Biological Products Standard, which was calc µLated by the Arrhenius equation. For ELISA kit, 4 days storage at 37°C can be considered as 6 months at 2 - 8°C, which means 7 days at 37°C equaling 12 months at 2 - 8°C).