Pappalysins comprise one of the five families of Metzincins (other families include ADAMs/ADAMTSs, MMPs, Astacins, and Serralysins). Pappalysin-1 (PAPP-A) is an important pregnancy protein and increases in plasma by a factor of about 150 during pregnancy. Reduced maternal serum PAPP-A is a major marker of Down syndrome in the first trimester of pregnancy. PAPP-A cleaves IGFBP-4 and -5 (insulin-like growth factor-binding protein-4 and 5) at a single site, resulting in the release of bioactive IGF.Pappalysin-2 (PAPP-A2; also called PAPP-E) shares 45% amino acid identity with PAPP-A and cleaves IGFBP-2.sialic acid binding Ig-like lectin 6 (Siglec-6), a potential leptin receptor, and pappalysin-2 (PAPP-A2), a protease that cleaves IGF-binding proteins
Human Pappalysin-2 (PAPPA2) ELISA Kit employs a two-site sandwich ELISA to quantitate PAPPA2 in samples. An antibody specific for PAPPA2 has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and anyPAPPA2 present is bound by the immobilized antibody. After removing any unbound substances, a biotin-conjugated antibody specific for PAPPA2 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 PAPPA2 bound in the initial step. The color development is stopped and the intensity of the color is measured.
Human Pappalysin-2 (PAPPA2) ELISA Kit listed herein is for research use only and is not intended for use in human or clinical diagnosis. Suggested applications of our products are not recommendations to use our products in violation of any patent or as a license. We cannot be responsible for patent infringements or other violations that may occur with the use of this product.
Find more details at http://www.abbkine.com/product/human-pappalysin-2-pappa2-elisa-kit-kte62361/
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