PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12832289-1 2003 L-3,4-dihydroxyphenylalanine, the immediate precursor of dopamine, can be formed by two enzymes: tyrosine hydroxylase (TH) in catecholamine-producing neurons and chromaffin cells and tyrosinase in melanocytes. Levodopa 0-28 tyrosine hydroxylase Mus musculus 97-117 12832289-1 2003 L-3,4-dihydroxyphenylalanine, the immediate precursor of dopamine, can be formed by two enzymes: tyrosine hydroxylase (TH) in catecholamine-producing neurons and chromaffin cells and tyrosinase in melanocytes. Levodopa 0-28 tyrosine hydroxylase Mus musculus 119-121