Product Description
CD21, also known as complement receptor 2 and C3d receptor, is a 140-kD membrane protein on mature B-lymphocytes.15 CD21 has been shown to label follicular dendritic cells (FDC), as a means of illustrating the phenomenon of follicular colonization in marginal zone lymphoma. CD21 has also been used in proving cell lineage in some rare tumors of the FDC.16


