HLA-DMA (Major Histocompatibility Complex, Class II, DM Alpha): HLA-DMA is a protein involved in the immune system’s antigen presentation pathway. It plays a critical role in regulating peptide loading onto MHC class II molecules, enabling immune cells to effectively present antigens to T cells. This function is essential for initiating immune responses against pathogens and maintaining immune tolerance. Changes in HLA-DMA activity can impact immune function and are linked to several autoimmune conditions, highlighting its importance in immune regulation and disease risk.