TH: an enzyme involved in the conversion of phenylalanine to dopamine. As the rate-limiting enzyme in the synthesis of catecholamines, tyrosine hydroxylase has a key role in the physiology of adrenergic neurons. Four splice variant isoforms have been described.
Protein type: Amino Acid Metabolism - tyrosine; Endoplasmic reticulum; Vesicle; EC 1.14.16.2; Oxidoreductase; Mitochondrial
Cellular Component: internal side of plasma membrane; neuron projection; cytoplasmic vesicle membrane; smooth endoplasmic reticulum; mitochondrion; dendrite; melanosome membrane; terminal button; perikaryon; cytosol; synaptic vesicle; cell soma; axon; cytoplasm; cytoplasmic vesicle; nucleus
Molecular Function: protein domain specific binding; ferric iron binding; metal ion binding; ferrous iron binding; oxidoreductase activity; oxygen binding; tyrosine 3-monooxygenase activity; amino acid binding; oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced pteridine as one donor, and incorporation of one atom of oxygen; enzyme binding; iron ion binding; dopamine binding; monooxygenase activity
Biological Process: synaptic transmission, dopaminergic; eating behavior; heart development; mating behavior; locomotory behavior; learning; dopamine biosynthetic process; memory; synaptic vesicle amine transport; regulation of heart contraction; norepinephrine biosynthetic process; dopamine biosynthetic process from tyrosine; organ morphogenesis; eye photoreceptor cell development; response to ethanol; catecholamine biosynthetic process; visual perception; aromatic amino acid family metabolic process; response to hypoxia; embryonic camera-type eye morphogenesis; epinephrine biosynthetic process; neurotransmitter biosynthetic process
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