The RCR-252 monoclonal antibody specifically binds to the endothelial cell protein C receptor (EPCR), which is also known as CD201. CD201 is a 25 kDa, type I transmembrane glycoprotein, expressed on endothelial cells in arteries, veins and capillaries. CD201 binds activated protein C, a serine protease that is involved in regulating blood coagulation. EPCR is reportedly expressed on several malignant cell lines. Malignant cell lines that express EPCR can show significant levels of protein C activation and this activation can be inhibited by anti-EPCR antibody
The antibody was conjugated to BD Horizon™ BUV805 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 805 nm. BD Horizon Brilliant BUV805 can be excited by the ultraviolet laser (355 nm) and detected with a 820/60 filter and a 770LP.