the transferrin receptor. Regulates the cellular uptake of iron occurs via receptor-mediated endocytosis of ligand-occupied receptors 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. Note: This description may include information from UniProtKB.
Protein type: Membrane protein, integral; Receptor, misc.; Cell surface
Cellular Component: basolateral plasma membrane; cell surface; coated pit; cytoplasmic membrane-bound vesicle; endosome; external side of plasma membrane; extracellular region; extracellular space; integral to plasma membrane; intracellular membrane-bound organelle; melanosome; membrane; mitochondrion; perinuclear region of cytoplasm; plasma membrane; recycling endosome; recycling endosome membrane
Molecular Function: chaperone binding; double-stranded RNA binding; glycoprotein binding; Hsp70 protein binding; identical protein binding; protein binding; protein homodimerization activity; transferrin receptor activity; transferrin transmembrane transporter activity; viral receptor activity
Biological Process: acute-phase response; aging; cellular iron ion homeostasis; entry of virus into host cell; osteoclast differentiation; positive regulation of bone resorption; receptor-mediated endocytosis; regulation of cell growth; regulation of cell proliferation; response to copper ion; response to hypoxia; response to iron ion; response to manganese ion; response to nutrient; response to retinoic acid; transferrin transport; transmembrane transport
LTP: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.