Abcam, ab157964, Recombinant Human CXCR5 protein

Size: 10µg
Recombinant Human CXCR5 protein is a Human Full Length protein, in the 1 to 372 aa range, expressed in Wheat germ, suitable for ELISA, WB.
Key facts
Expression system:Wheat germ,
Tags:GST tag N-Terminus,
Applications:ELISA, WBSee reactivity dataSee the reactivity data table below for information on validated species and application combinations.,
Biologically active:No,
Accession:P32302,
Animal free:No,
Carrier free:No,
Species:Human,
Storage buffer:pH: 8Constituents: 0.79% Tris HCl, 0.31% Glutathione

Properties and Storage Information:
Shipped at conditions-Dry Ice, Appropriate short-term storage conditions--80°C, Appropriate long-term storage conditions--80°C, Aliquoting information-Upon delivery aliquot, Storage information-Avoid freeze / thaw cycle

Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
CXCR5 also known as CD185 is a chemokine receptor with a mass of approximately 43 kDa. It is part of the G protein-coupled receptor family and is widely expressed on follicular B helper T (Tfh) cells B cells and a subset of circulating blood cells. CXCR5 is recognized as a marker for Tfh cells which are critical for the function and maturation of B cells within germinal centers. In tissues CXCR5 expression appears prominently in regions where immune cell interactions facilitate immune and inflammatory responses.
Biological function summary
CXCR5 serves a significant role in directing B cells and Tfh cells to lymphoid tissues by interacting with its ligand CXCL13. This interaction involves recruitment and organization of B cells into follicles within secondary lymphoid organs. The presence of CXCR5 allows B cells and Tfh cells to navigate the follicular zones efficiently enhance antigen-specific immune responses and contribute to long-lived humoral immunity. CXCR5 functions as part of a complex that includes signaling pathways influencing cellular movements and location.
Pathways
CXCR5 plays a significant part in the immune system's trafficking pathways particularly within the crosstalk between chemokines and their receptors. CXCR5 expression facilitates the CXC chemokine pathway which important for positioning immune cells within lymphoid organs. Additionally CXCR5 interacts with proteins such as CXCL13 working together to pattern the architecture of germinal centers where affinity maturation and class switching of antibodies occur critical processes in adaptive immunity.
CXCR5 has been implicated in autoimmune diseases and certain lymphomas. For example aberrant CXCR5 expression is linked to the pathogenesis of diseases like systemic lupus erythematosus (SLE) where it might contribute to immune dysregulation and chronic inflammation. In the context of certain lymphomas CXCR5's role in lymphoid organ architecture and cell migration becomes even more relevant. Its expression often parallels the presence of CXCL13 hinting at a network of interactions promoting tumor survival and growth within lymphoid landscapes. Understanding these relationships can offer insight into developing therapeutic strategies potentially involving CXCR5 inhibitors or anti-CXCR5 antibodies to address these diseases.