{"code":"C16848","name":"Methylation","terminology":"ncit","version":"26.09d","conceptStatus":"DEFAULT","leaf":false,"active":true,"synonyms":[{"name":"Methylation","termType":"PT","type":"FULL_SYN","typeCode":"P90","source":"GDC"},{"name":"methylation","termType":"PT","type":"FULL_SYN","typeCode":"P90","source":"NCI-GLOSS","code":"CDR0000655031"},{"name":"Methylation","termType":"PT","type":"FULL_SYN","typeCode":"P90","source":"NCI"},{"name":"Methylation","type":"Preferred_Name","typeCode":"P108"}],"definitions":[{"definition":"A chemical reaction in which a small molecule called a methyl group is added to other molecules. Methylation of proteins or nucleic acids may affect how they act in the body.","code":"P325","type":"ALT_DEFINITION","source":"NCI-GLOSS"},{"definition":"The covalent chemical or biochemical addition of a methyl group(s) to a compound. (NCI)","code":"P97","type":"DEFINITION","source":"NCI"}],"properties":[{"code":"P322","type":"Contributing_Source","value":"GDC"},{"code":"P366","type":"Legacy Concept Name","value":"Methylation"},{"code":"P375","type":"Maps_To","value":"Methylation"},{"code":"P106","type":"Semantic_Type","value":"Phenomenon or Process"},{"code":"P207","type":"UMLS_CUI","value":"C0025723"}]}