{"code":"C915","name":"L-Tyrosine","terminology":"ncit","version":"26.09d","conceptStatus":"DEFAULT","leaf":true,"active":true,"synonyms":[{"name":"(S)-2-Amino-3-(4-hydroxy-phenyl)propanoic acid","termType":"SY","type":"FULL_SYN","typeCode":"P90","source":"CRCH"},{"name":"Tyr","termType":"SY","type":"FULL_SYN","typeCode":"P90","source":"CRCH"},{"name":"Tyrosine","termType":"PT","type":"FULL_SYN","typeCode":"P90","source":"CRCH"},{"name":"L-Tyrosine","termType":"DN","type":"FULL_SYN","typeCode":"P90","source":"CTRP"},{"name":"TYROSINE, (L)","termType":"SY","type":"FULL_SYN","typeCode":"P90","source":"DTP","code":"NSC0009973"},{"name":"TYROSINE","termType":"PT","type":"FULL_SYN","typeCode":"P90","source":"FDA","code":"42HK56048U","subSource":"UNII"},{"name":"L-Phenylalanine, 4-hydroxy-","termType":"SN","type":"FULL_SYN","typeCode":"P90","source":"NCI"},{"name":"L-Tyrosine","termType":"PT","type":"FULL_SYN","typeCode":"P90","source":"NCI"},{"name":"TYR","termType":"SY","type":"FULL_SYN","typeCode":"P90","source":"NCI"},{"name":"Tyrosine","termType":"SY","type":"FULL_SYN","typeCode":"P90","source":"NCI"},{"name":"L-Tyrosine","type":"Display_Name","typeCode":"P107"},{"name":"L-Tyrosine","type":"Preferred_Name","typeCode":"P108"}],"definitions":[{"definition":"Amino acid with side chain -CH2-C6H4OH.","code":"P325","type":"ALT_DEFINITION","source":"CRCH"},{"definition":"The levorotatory isomer of the aromatic amino acid tyrosine. L-tyrosine is a naturally occurring tyrosine and is synthesized in vivo from L-phenylalanine. It is considered a non-essential amino acid; however, in patients with phenylketonuria who lack phenylalanine hydroxylase and cannot convert phenylalanine into tyrosine, it is considered an essential nutrient. In vivo, tyrosine plays a role in protein synthesis and serves as a precursor for the synthesis of catecholamines, thyroxine, and melanin.","code":"P97","type":"DEFINITION","source":"NCI"}],"properties":[{"code":"P210","type":"CAS_Registry","value":"60-18-4"},{"code":"P368","type":"CHEBI_ID","value":"CHEBI:17895"},{"code":"P350","type":"Chemical_Formula","value":"C9H11NO3"},{"code":"P322","type":"Contributing_Source","value":"CRCH"},{"code":"P322","type":"Contributing_Source","value":"CTRP"},{"code":"P322","type":"Contributing_Source","value":"FDA"},{"code":"P319","type":"FDA_UNII_Code","value":"42HK56048U"},{"code":"P353","type":"INFOODS","value":"TYR_G"},{"code":"P366","type":"Legacy Concept Name","value":"Tyrosine"},{"code":"P175","type":"NSC Number","value":"9973"},{"code":"P106","type":"Semantic_Type","value":"Amino Acid, Peptide, or Protein"},{"code":"P207","type":"UMLS_CUI","value":"C0041485"},{"code":"P355","type":"Unit","value":"g"},{"code":"P354","type":"USDA_ID","value":"509"}]}