Flow Cytometry: Use 10 µl of neat antibody to label 10e6 cells in 100 µl. (Results maybe enhanced using membrane permeabilisation). Immunohistochemistry on Frozen sections: 1/10.
Reactivity
Bovine, Rat
Antibody Host
Mouse
Isotype
IgG1
Clonality
Monoclonal
Immunogen
Rat spleen cells
Specificity
CD68 antibody (Cat.-No BM4000B) recognizes a single chain glycoprotein of 110kDa that is expressed predominantly on the lysomal membrane of myeloid cells. Weak cell surface expression also occurs. The antigen is expressed by the majority of tissue macrophages, and weakly be peripheral blood granulocytes. Studies have shown that the antigen recognised by ED1 is the rat homologue of Human CD68. Negative Species: Horse.
The CD68 antigen is a 37kD transmembrane protein that is post-translationally glycosylated to give a protein of 87-115kD. CD68 is specifically expressed by tissue macrophages, Langerhans cells and at low levels by dendritic cells. It could play a role in phagocytic activities of tissue macrophages, both in intracellular lysosomal metabolism and extracellular cell-cell and cell-pathogen interactions. It binds to tissue- and organ-specific lectins or selectins, allowing homing of macrophage subsets to particular sites. Rapid recirculation of CD68 from endosomes and lysosomes to the plasma membrane may allow macrophages to crawl over selectin bearing substrates or other cells.
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