Description
Aviva Systems Biology RAB19 ELISA Kit (Human) (OKEH06604) is based on a competitive enzyme immunoassay technique. The microtiter well-plate in this kit has been pre-coated with an anti-RAB19 antibody. Sample or standards are added to the wells along with a fixed quantity of biotinylated RAB19 and incubated. The RAB19 found in the sample or standards competes with the biotinylated RAB19 for limited binding sites on the immobilized anti-RAB19 antibody. Excess unbound biotinylated RAB19 and sample or standard RAB19 is washed from the plate. Avidin-HRP conjugate is added, incubated and washed. An enzymatic reaction is then produced through the addition of TMB substrate which is catalyzed by the immobilized HRP to generate a blue color product that changes to yellow after adding acidic stop solution. The density of yellow coloration is measured by reading the absorbance at 450 nm which is quantitatively proportional to the amount of biotinylated RAB19 captured in the well and inversely proportional to the amount of RAB19 which was contained in the sample or standard