CXCR5 Antibody / BLR1 / MDR15

Burkitt s lymphoma receptor 1 (Blr1), also called CD185, CXCR5 and MDR15, is a lymphocyte specific chemokine receptor expressed at low levels in secondary lymphoid tissues and in defined structures of the cerebellum. The G protein-coupled receptor has significant homology to other chemokine receptors. Stimulation of Blr1 by its ligand, B-lymphocyte chemoattractant (BLC) results in an influx of calcium into the cell and the chemotaxis of the cell. Blr1 is required for B-cell migration into splenic and Peyer s patch follicles. BLC expression in Peyer s patches is highest in germinal centers, where B cells undergo somatic mutation and affinity maturation.