The CLB-IVC7 monoclonal antibody specifically binds to CD36 which is also known as Glycoprotein IIIb (GPIIIb, GP3B), Platelet glycoprotein IV (GPIV), Fatty acid translocase (FAT), Platelet collagen receptor (PASIV), Scavenger receptor class B member 3 (SCARB3) or Thrombospondin receptor. CD36 is a ~88 kDa transmembrane that belongs to the scavenger receptor superfamily. The CD36 antigen is expressed on platelets, megakaryocytes, monocytes, macrophages, dendritic cells, erythroid precursors, adipocytes, and some endothelial and epithelial cells. The CD36 antigen is the receptor for extracellular matrix proteins such as collagen and thrombospondin. The CD36 antigen can mediate the adhesion of erythrocytes infected with the human malaria parasite, Plasmodium falciparum. The CD36 antigen functions as a scavenger receptor in macrophages.
The antibody was conjugated to BD Horizon™ BUV661 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 661-nm. BD Horizon Brilliant BUV661 can be excited by the ultraviolet laser (355 nm) and detected with a 670/25 filter and a 630 nm LP. Due to cross laser excitation of this dye, there may be significant spillover into channels detecting APC-like emissions (eg, 670/25-nm filter).
Due to spectral differences between labeled cells and beads, using BD™ CompBeads can result in incorrect spillover values when used with BD Horizon BUV661 reagents. Therefore, the use of BD CompBeads or BD CompBeads Plus to determine spillover values for these reagents is not recommended. Different BUV661 reagents (eg, CD4 vs. CD45) can have slightly different fluorescence spillover therefore, it may also be necessary to use clone-specific compensation controls when using these reagents.