Human Secreted frizzled-related protein 2 (SFRP2) ELISA Kit | AE19881HU

Human Secreted frizzled-related protein 2 (SFRP2) ELISA Kit | AE19881HU | Gentaur UK, US & Europe Distribution

Species Reactivity: Human (Homo sapiens)

Abbreviation: SFRP2

Alternative Name: FRP-2; SARP1; SDF-5; secreted apoptosis related protein 1

Application: ELISA

Range: 1.25-80 ng/mL

Sensitivity: 0.53 ng/mL

Intra-Assay: ≤7.4%

Inter-Assay: ≤11.1%

Recovery: 1, 08

Sample Type: Serum, Plasma, Other biological fluids

Detection Method: Sandwich

Analysis Method : Quantitive

Test Principale: This assay employs a two-site sandwich ELISA to quantitate SFRP2 in samples. An antibody specific for SFRP2 has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and anySFRP2 present is bound by the immobilized antibody. After removing any unbound substances, a biotin-conjugated antibody specific for SFRP2 is added to the wells. After washing, Streptavidin conjugated 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 SFRP2 bound in the initial step. The color development is stopped and the intensity of the color is measured.

Product Overview: SFRP2 encodes a member of the SFRP family that contains a cysteine-rich domain homologous to the putative Wnt-binding site of Frizzled proteins. The partial human SARP1 cDNA encodes a polypeptide that is 95% identical to mouse Sarp1. When expressed in a breast adenocarcinoma cell line, mouse SARP1 and human SARP2 exhibited opposite effects on cell sensitivity to proapoptotic stimuli. Whereas cells with SARP1 had higher resistance, cells expressing SARP2 were sensitized to apoptosis induced by tumor necrosis factor and ceramide. Expression of SARP1 or SARP2 modified the intracellular levels of beta-catenin, an indicator of Wnt-frizzled protein interaction and signal transduction, suggesting that SARPs interfere with the Wnt-frizzled signaling pathway.

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 calculated 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) .