Uncoated Rat ACE ( Angiotensin Ⅰ Converting Enzyme ) ELISA Kit (E-UNEL-R0086)

This ELISA kit uses the Sandwich-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with an antibody specific to ACE . Standards or samples are added to the micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for ACE and Avidin-Horseradish Peroxidase (HRP) conjugate are added successively to each micro plate well and incubated. Free components are washed away. The substrate solution is added to each well. Only those wells that contain ACE , biotinylated detection antibody and Avidin-HRP conjugate will appear blue in color. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The OD value is proportional to the concentration of ACE . You can calculate the concentration of ACE in the samples by comparing the OD of the samples to the standard curve.

CD143 (ACE,kininase II,peptidyl dipeptidase 1,peptidase P,carboxycathepsin) is a 171 kD,type I,single chain transmembranal metallopeptidase,whose cofactor is zinc. Its main targets are angiotensin I and bradykinin,acting as a blood pressure regulator. CD143 is expressed in endothelial cells, varying amounts of CD143 have been reported in different epithelial cells. The activation of macrophages and histiocytes induces the expression of this molecule.