Detection Method:Sandwich
Test principle:This assay employs a two-site sandwich ELISA to quantitate TOB2 in samples. An antibody specific for TOB2 has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and anyTOB2 present is bound by the immobilized antibody. After removing any unbound substances, a biotin-conjugated antibody specific for TOB2 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 TOB2 bound in the initial step. The color development is stopped and the intensity of the color is measured.
Product Overview:TOB2 belongs to the TOB/BTG1 family of antiproliferative proteins, which are involved in the regulation of cell cycle progression.The deduced 344-amino acid TOB2 polypeptide has a calculated molecular mass of 37 kD. It shares 61% overall sequence homology with the TOB1 protein, and both proteins contain a putative nuclear localization signal in the conserved N-terminal domain. Immunofluorescence analysis revealed localization almost exclusively in the cytoplasm. Northern blot analysis of human adult tissues detected ubiquitous expression of a 4.1-kb transcript, with relatively high expression in skeletal muscle, thymus, and ovary. In situ hybridization in several mouse tissues demonstrated intense hybridization in ovary, with characteristic expression in oocytes. Immunoblot analysis revealed a 43-kD protein.
