CXCR5 Antibody / CD185, 100ug

C-X-C Motif Chemokine Receptor 5 antibody, also known as CD185 antibody, recognizes C-X-C motif chemokine receptor 5, a seven-transmembrane G protein-coupled receptor encoded by the CXCR5 gene and commonly referred to as Burkitt lymphoma receptor 1. C-X-C Motif Chemokine Receptor 5 is primarily localized to the plasma membrane of B lymphocytes and subsets of T cells, particularly follicular helper T cells, where it regulates chemokine-driven cell migration. As a member of the CXC chemokine receptor family, CXCR5 binds the ligand CXCL13 and plays a central role in lymphoid follicle organization and germinal center formation.<br><br>C-X-C Motif Chemokine Receptor 5 antibody detects a multi-pass transmembrane receptor composed of seven alpha-helical membrane-spanning domains, extracellular regions responsible for ligand recognition, and intracellular domains that couple to heterotrimeric G proteins. Upon binding CXCL13, CXCR5 activates downstream signaling pathways that promote cytoskeletal rearrangement and directed chemotaxis. Through these mechanisms, CD185 directs B cells and T follicular helper cells into B cell follicles within secondary lymphoid tissues, supporting antibody affinity maturation and adaptive immune responses.<br><br>Functionally, CXCR5 is essential for proper germinal center architecture and humoral immunity. Expression of C-X-C Motif Chemokine Receptor 5 defines follicular B cells and T follicular helper cells and is widely used as a marker in immunophenotyping and lymphoid tissue studies. Dysregulated CXCR5 signaling has been implicated in autoimmune diseases, chronic inflammatory conditions, and lymphoid malignancies. In certain B cell lymphomas, altered CD185 expression may influence tumor cell positioning and interactions within the lymphoid microenvironment.<br><br>The CXCR5 gene is located on chromosome 11 and is transcriptionally regulated during lymphocyte activation and differentiation. Because C-X-C Motif Chemokine Receptor 5 expression is largely restricted to specific immune cell subsets, detection of this receptor provides insight into lymphocyte trafficking, germinal center dynamics, and immune cell compartmentalization in normal and disease contexts.<br><br>The C-X-C Motif Chemokine Receptor 5 antibody (clone CXCR5/13095) is suitable for detecting CXCR5 protein expression in research applications. This CD185 antibody supports investigation of B cell biology, T follicular helper cell function, lymphoid tissue organization, and immune-mediated disease mechanisms.

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