Used in immunological research to detect and quantify low glycosylated IgA1 antibodies in human biological samples. This kit is particularly valuable in studies related to autoimmune diseases such as IgA nephropathy (IgAN), where aberrantly glycosylated IgA1 plays a key role in disease pathogenesis. Researchers use this ELISA kit to measure levels of under-glycosylated IgA1 in serum or plasma, helping to investigate disease mechanisms, assess patient stratification, and monitor potential therapeutic responses. It supports high-throughput screening in clinical and research laboratories focused on renal diseases and mucosal immunity.