The Z8-50.23 monoclonal antibody specifically recognizes the mouse CX3C chemokine receptor 1 (CX3CR1), which is also known as Fractalkine receptor, G protein-coupled receptor 13 (GPR13), or GPRV28 (V28). CX3CR1 is an ~40 kDa, seven-transmembrane G protein-coupled receptor that is expressed on monocytes, activated macrophages, NK cells, a subset of memory T cells, dendritic cells (DC), and mast cells. CX3CR1 is a receptor for the CX3C chemokine, CX3CL1, which is also known as fractalkine or neurotactin. CX3CL1 is expressed on activated endothelial cells, neurons, and astrocytes. CX3CR1 plays a role in leucocyte adhesion and extravasation from blood vessels during inflammation.
The antibody was conjugated to BD Horizon™ BUV395 which is part of the BD Horizon Brilliant™ Ultraviolet family of dyes. With an Ex Max near 348 nm and an Em Max near 395 nm, BD Horizon™ BUV395 can be excited by the ultraviolet laser (355 nm) laser and detected with a 379/28 filter. This dye has been exclusively developed by BD Biosciences as an optimal dye for use on instruments equipped with the ultraviolet laser and has virtually no spillover into any other detector.