The B2 antigen, also known as CD21 and CR2, is a 140 kD glycosylated Type 1 integral membrane protein. The CD21 molecule is expressed on mature B lymphocytes, follicular dendritic reticulum cells (FDC), pharyngeal epithelial cells, and possibly on a subset of normal thymocytes. This antigen is also expressed by B lymphocytes in patients with B cell lymphomas, most B cell chronic lymphocytic leukemia (CLL), and a small portion of non-T cell acute lymphoblastic leukemias (ALL)
Intended Use: IVD
Antibody Type: Monoclonal
Clone: B2
Source: Mouse
Tissue Type/Cancer Type: Frozen Tonsil