What antigen ELISA is detecting?

An antigen ELISA (Enzyme-Linked Immunosorbent Assay) is designed to detect the presence of specific antigens in a sample, such as proteins or peptides from pathogens, allergens, or other biological substances. The assay employs antibodies that specifically bind to the target antigen, and the bound antigen is then quantified using an enzyme-linked detection system that produces a measurable signal, typically a color change. This method is widely used in diagnostics, research, and quality control to identify and quantify antigens in various samples, including blood, serum, and tissue extracts.