Cell localization:Membranous.CD19 molecµLe(CD19) Homo sapiens Lymphocytes proliferate and differentiate in response to various concentrations of different antigens. The ability of the B cell to respond in a specific, yet sensitive manner to the various antigens is achieved with the use of low-affinity antigen receptors. This gene encodes a cell surface molecµLe which assembles with the antigen receptor of B lymphocytes in order to decrease the threshold for antigen receptor-dependent stimµLation. [provided by RefSeq, JµL 2008],
