Anti-Transferrin Receptor, clone 66IG10

0.2 mg/ml with 0.1 mg/ml BSA (US sourced), 0.05% sodium azide. This antibody recognizes a ~90-95kDa protein which is identified as cell surface Transferrin receptor (CD71), a disulfide-bonded homodimeric glycoprotein of 180-190kDa. The antibody is highly specific to transferrin receptor and shows no cross-reaction with other related proteins. Its epitope is localized in the extracellular domain of transferrin receptor. Its ligand is the serum iron transport protein, transferrin. This receptor is broadly distributed in carcinomas, sarcomas, leukemias, and lymphomas. Transferrin receptor has been reported to be associated with cell proliferation in both normal and neoplastic tissues and useful in predicting clinical behavior or response to therapy in a number of malignancies including breast cancer. Protein function: Cellular uptake of iron occurs via receptor-mediated endocytosis of ligand-occupied transferrin receptor into specialized endosomes. Endosomal acidification leads to iron release. The apotransferrin-receptor complex is then recycled to the cell surface with a return to neutral pH and the concomitant loss of affinity of apotransferrin for its receptor. Transferrin receptor is necessary for development of erythrocytes and the nervous system. A second ligand, the heditary hemochromatosis protein HFE, competes for binding with transferrin for an overlapping C-terminal binding site. [The UniProt Consortium]