Human DCD (Dermcidin) 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 DCD. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human DCD. 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 DCD, 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 DCD in the samples is then determined by comparing the OD of the samples to the standard curve. Protein Function: Found in sweat, has an antimicrobial activity during early bacterial colonization (PubMed:11694882, PubMed:23426625). The secreted peptide assembles into homohexameric complexes that can associate with and also insert into pathogen membranes (PubMed:23426625). Once inserted in bacteria membranes forms anion channels probably altering the transmembrane potential essential for bacterial survival (PubMed:23426625). Highly effective against E.coli, E.faecalis, S.aureus and C.albicans (PubMed:11694882). Optimal pH and salt concentration resemble the conditions in sweat (PubMed:11694882). Also exhibits proteolytic activity, cleaving on the C-terminal side of Arg and, to a lesser extent, Lys residues (PubMed:17448443) , Promotes survival of neurons and displays phosphatase activity (PubMed:9736629). It may bind IgG (PubMed:9736629) [The Uniprot Consortium]