Description
This assay employs a two-site sandwich ELISA to quantitate DCN in samples. An antibody specific for DCN has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and any DCN present is bound by the immobilized antibody. After removing any unbound substances, a biotin-conjugated antibody specific for DCN 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 DCN bound in the initial step. The color development is stopped and the intensity of the color is measured.
Overview: Decorin is a proteoglycan on average 90 - 140 kilodaltons (kD) in size.It belongs to the small leucine-rich proteoglycan (SLRP) family and consists of a protein core containing leucine repeats with a glycosaminoglycan (GAG) chain consisting of either chondroitin sulfate (CS) or dermatan sulfate (DS). Decorin is a small cellular or pericellular matrix proteoglycan and is closely related in structure to biglycan protein. Decorin and biglycan are thought to be the result of a gene duplication. This protein is a component of connective tissue, binds to type I collagen fibrils, and plays a role in matrix assembly