Specificity: The antibody QBEnd-10 reacts with Class II epitope on CD34 (Mucosialin), a 110-115 kD monomeric transmembrane phosphoglycoprotein expressed on hematopoietic progenitors cells and on the most pluripotential stem cells; it is gradually lost on progenitor cells. This antibody has been also used as an endothelial marker. HLDA V.; WS Code BP BP275. HLDA V.; WS Code E E038. HLDA V.; WS Code M MA065. HLDA V.; WS Code M MR09.