Description
Test Principle: This assay employs a two-site sandwich ELISA to quantitate ADIPOR2 in samples. An antibody specific for ADIPOR2 has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and any ADIPOR2 present is bound by the immobilized antibody. After removing any unbound substances, a biotin-conjugated antibody specific for ADIPOR2 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 ADIPOR2 bound in the initial step. The color development is stopped and the intensity of the color is measured.
Overview: ADIPOR1 and ADIPOR2 are highly related structurally, and mouse Adipor1 and Adipor2 share 66.7% identity. ADIPOR1 and ADIPOR2 are 7-transmembrane domain proteins, but they are structurally, topologically, and functionally distinct from G protein-coupled receptors. Epitope tag labeling showed that the N terminus is internal and the C terminus is external in the ADIPORs, a topology opposite that of GPCRs. ADIPOR1, ADIPOR2 are conserved from yeast to human, especially in the membrane-spanning regions. The authors noted that the yeast homolog has a principal role in metabolic pathways that regulate lipid metabolism, such as fatty acid oxidation. Northern blot analysis of mouse or human tissues detected a major 4.0kb ADIPOR2 transcript that was most abundantly expressed in liver