Detection Method:Sandwich
Test principle:This assay employs a two-site sandwich ELISA to quantitate SMAD1 in samples. An antibody specific for SMAD1 has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and anySMAD1 present is bound by the immobilized antibody. After removing any unbound substances, a biotin-conjugated antibody specific for SMAD1 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 SMAD1 bound in the initial step. The color development is stopped and the intensity of the color is measured.
Product Overview:belongs to the SMAD, a family of proteins similar to the gene products of the Drosophila gene 'mothers against decapentaplegic' (Mad) and the C. elegans gene Sma. The name is a combination of the two. It was found that a mutation in the 'Drosophila' gene, MAD, in the mother, repressed the gene, decapentaplegic, in the embryo. The phrase "Mothers against" was added as a humorous approach since mothers often form organizations opposing various issues eg. This protein mediates the signals of the bone morphogenetic proteins, which are involved in a range of biological activities including cell growth, apoptosis, morphogenesis, development and immune responses. In response to BMP ligands, this protein can be phosphorylated and activated by the BMP receptor kinase.
