Human SIAE (Sialic Acid Acetylesterase) ELISA Kit

The test principle applied in this kit is Sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre-coated with an antibody specific to Human SIAE. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human SIAE. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain Human SIAE, biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of Human SIAE in the samples is then determined by comparing the OD of the samples to the standard curve. Protein Function: Catalyzes the removal of O-acetyl ester groups from position 9 of the free diacetylated sialate N-acetyl-9-O-acetylneuraminate (Neu5,9Ac2) in the cytosol and of the diacetylated sialate residues of sialylglycoconjugates in the lysosomes (Probable). Together with the sialate-O-acetyltransferase they regulate the balance of acetylated sialoglycoconjugates, key players in various processes such as cell-cell interactions, host-pathogen recognition, and tumor antigenicity (PubMed:21803834) [The Uniprot Consortium]