Principle of Assay
Human PER1 ELISA Kit (A311802) employs the sandwich enzyme immunoassay technique for the quantitative measurement of human PER1 in serum, plasma or other biological fluids. An antibody specific for PER1 has been pre-coated onto a 96-well microtiter plate. The standards and test samples are added into the wells and the PER1 present in each sample is bound to the wells by the immobilized antibody. Biotinylated Anti-PER1 Antibody, which also binds the PER1 present in each sample, and Streptavidin-HRP, which binds the Biotinylated Anti-PER1 Antibody, are added and the microtiter plate is incubated. Following incubation, unbound Biotinylated Anti-PER1 Antibody and unbound Streptavidin-HRP are removed by washing, and two substrate solutions are added to the wells. Color develops in proportion to the amount of PER1 captured in each well. The color development is stopped by addition of stop solution which changes the color from blue to yellow and the intensity of the color is then measured. The concentration of PER1 in the samples can then be calculated by reading the O.D. absorbance at 450nm in a microplate reader and referring to the standard curve.