The 475301 monoclonal antibody specifically recognizes CD192 which is also known as C-C chemokine receptor type 2 (CCR2 or CC-CKR-2), Cmkbr2, or MCP-1 receptor (MCP-1-R). CD192 (CCR2) is a seven-transmembrane, G-protein-coupled, glycoprotein receptor that belongs to the beta chemokine receptor family. It is expressed on monocytes, macrophages, basophils and on some T cells and dendritic cells. Chemokines including CCL2 (Monocyte chemoattractant protein 1/MCP-1), CCL7 (MCP-3), or CCL12 (MCP-5) bind to and signal through CD192 (CCR2) to recruit monocytes and other leucocytes into inflammatory sites including tumors.
The antibody was conjugated to BD Horizon™ BUV496 which is part of the BD Horizon Brilliant™ Ultraviolet family of dyes. This dye is a tandem fluorochrome of BD Horizon BUV395 with an Ex Max of 348-nm and an acceptor dye with an Em Max at 496-nm. BD Horizon BUV496 can be excited by the ultraviolet laser (355 nm) and detected with a 515/30 nm filter with a 450LP. Due to the excitation of the acceptor dye by other laser lines, there may be significant spillover into the channel detecting BD Horizon V500 or BV510 (eg, 525/40-nm filter). However, the spillover can be corrected through compensation as with any other dye combination.