Detection Method:Sandwich
Test principle:This assay employs a two-site sandwich ELISA to quantitate PHB in samples. An antibody specific for PHB has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and anyPHB present is bound by the immobilized antibody. After removing any unbound substances, a biotin-conjugated antibody specific for PHB 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 PHB bound in the initial step. The color development is stopped and the intensity of the color is measured.
Product Overview:Prohibitin is a protein which in humans is encoded by the PHB gene. The Phb gene has also been described in animals, fungi, plants and unicellular eukaryotes. Prohibitins are divided in two classes, termed Type-I and Type-II prohibitins, based on their similarity to yeast PHB1 or PHB2, respectively.
Each organism has at least one copy of each type of prohibitin gene.Prohibitins are evolutionarily conserved genes that are ubiquitously expressed. The human prohibitin gene, located on the BRCA1 chromosome region 17q21, was originally thought to be a negative regulator of cell proliferation and a tumor suppressor. This anti-proliferative activity was later attributed to the 3' UTR of the PHB gene, and not to the actual protein.
