|Detection of CD34 in bEnd.3 Mouse Cell Line by Flow Cytometry. bEnd.3 mouse endothelioma cell line was stained with Sheep Anti-Mouse CD34 APC‑conjugated Antigen Affinity-purified Polyclonal Antibody (Catalog # FAB65181A, filled histogram) or isotype control antibody (Catalog # IC016A, open histogram). View our protocol for Staining Membrane-associated Proteins.|
Mouse and rat CD34 is a 80 -100 kDa member of the CD34/podocalyxin family of molecules. It is a sialomucin type glycoprotein, and presents carbohydrate to selectins during cell migration. CD34 is found on mast cells, eosinophils, vascular endothelial cells, CD34+ stem cells and renal mesangial cells. Mature mouse CD34 is a 348 amino acid (aa) type I transmembrane protein (aa 35-382). It contains a 253 aa extracellular region (aa 35-287), and a 74 aa cytoplasmic domain that undergoes Tyr phosphorylation. Mouse and rat CD34 also is likely to undergo membrane cleavage that will generate a 54 kDa soluble form. Over aa 35-287, mouse CD34 shares 57% and 82% aa identity with human and rat Cd34, respectively.