ELISA Rat ment epithelium-derived factor (PEDF)

Reactivity:Rat (Rattus norvegicus) UniProt:N/A Abbreviation:PEDF Alternative Names:N/A Application:ELISA Range:6.25-400 pg/mL Sensitivity:1.56 pg/mL Intra-AssayCV:?6.2% Inter-AssayCV:?7.5% Recovery:0.97 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 PEDF in samples. An antibody specific for PEDF has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and anyPEDF present is bound by the immobilized antibody. After removing any unbound substances, a biotin-conjµgated antibody specific for PEDF is added to the wells. After washing, Streptavidin conjµgated 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 PEDF bound in the initial step. The color development is stopped and the intensity of the color is measured. Product Overview:The PEDF gene is a member of the serpin gene family. Serpins are a group of serine protease inhibitors, some of which have also been reported to exhibit neurotrophic activity.By the analysis of 3 independent somatic cell hybrid panels, Tombran-Tink et al. (1994) assigned the PEDF gene to chromosome 17. Fluorescence in situ hybridization showed localization at the terminal portion of 17p. PCR analysis of somatic cell hybrids containing specific regions of 17 were subsequently used to sublocalize PEDF to 17pter-p13.1. Greenberg et al. (1997) used linkage analysis to narrow the localization of the PEDF gene to 17p13.3, the same region as that carrying the autosomal dominant retinitis pigmentosa locus (RP13) identified in a South African family. 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 calcµLated 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).