PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 22483310-3 2012 Tyrosine hydroxylase (TH) is an important neuronal enzyme that, in the presence of tetrahydrobiopterin, catalyzes the initial and rate-limiting step in the biosynthesis of the catecholamine neurotransmitters dopamine (DA) and norepinephrine, and is frequently used as a marker of DAergic neuronal loss in animal models of PD. Norepinephrine 226-240 tyrosine hydroxylase Homo sapiens 0-20 22483310-3 2012 Tyrosine hydroxylase (TH) is an important neuronal enzyme that, in the presence of tetrahydrobiopterin, catalyzes the initial and rate-limiting step in the biosynthesis of the catecholamine neurotransmitters dopamine (DA) and norepinephrine, and is frequently used as a marker of DAergic neuronal loss in animal models of PD. Norepinephrine 226-240 tyrosine hydroxylase Homo sapiens 22-24