Detection Method:Sandwich
Test principle:This assay employs a two-site sandwich ELISA to quantitate TIRAP in samples. An antibody specific for TIRAP has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and anyTIRAP present is bound by the immobilized antibody. After removing any unbound substances, a biotin-conjugated antibody specific for TIRAP 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 TIRAP bound in the initial step. The color development is stopped and the intensity of the color is measured.
Product Overview:TIRAP is a TIR adaptor protein involved in the TLR4 signaling pathway of the immune system. It activates NF-kappa-B, MAPK1, MAPK3 and JNK, which then results in cytokine secretion and the inflammatory response. Alternative splicing of this gene results in several transcript variants; however, not all variants have been fully described. MAL, unlike MYD88, does not interact with IRAK1 and is not inhibited by the dominant-negative N-terminal region of IRAK1; however, like MYD88, MAL does, through its TIR domain, interact with and is inhibited in NFKB activation by the dominant-negative form of IRAK2. A dominant-negative form of MAL inhibits TLR4 or lipopolysaccharide activation of NFKB, but not NFKB activation by IL1R1 or IL18R. Immunoprecipitation analysis showed that TLR4 and MAL are constitutively associated.