Description: The HMα2 monoclonal antibody reacts with mouse CD49b, the 150 kDa integrin α2 subunit. The complex of CD49b non-covalently associated with integrin β1 (CD29), also known as VLA-2, is a receptor for collagen and laminin. This complex is expressed by some CD4+ T cells, IEL, NK cells, platelets and epithelial cells.