Detection Method:Sandwich
Test principle:This assay employs a two-site sandwich ELISA to quantitate SLC7A7 in samples. An antibody specific for SLC7A7 has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and anySLC7A7 present is bound by the immobilized antibody. After removing any unbound substances, a biotin-conjugated antibody specific for SLC7A7 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 SLC7A7 bound in the initial step. The color development is stopped and the intensity of the color is measured.
Product Overview:The SLC7A7 gene encodes the light subunit of a cationic amino acid transporter. Together with the heavy chain, 4F2hc (SLC3A2), the SLC7A7 protein forms a functional heterodimeric transporter on the basolateral cell membrane of epithelial cells that transfers lysine, arginine, and ornithine from the cell to the extracellular space The SLC7A7 gene encodes a deduced 511-residue protein with a molecular mass of 56 kD that contains 12 transmembrane domains. The protein sequence shows 81% homology to the opossum protein. Northern blot analysis identified a 2.4-kb mRNA transcript expressed in kidney, peripheral blood leukocytes, lung, placenta, spleen, and small intestine. SLC7A7 associated with SLC3A2 to form a functional 135-kD heterodimer linked by a disulfide bridge involving cysteine 109 of SLC3A2.