Pharmacogenetics of methylation: Relationship to drug metabolism

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43 Scopus citations


Pharmacogenetics is the study of inherited variation in drug response. Genetic differences in drug metabolism are the most common causes for inherited variations in drug response or adverse reactions to medications. Methyl conjugation is an important pathway in the biotransformation of many drugs. Experiments performed during the past decade showed that individual variations in the activities of enzymes that catalyze S-methylation, O-methylation and N-methylation are under genetic control in human tissue. These inherited variations are responsible for individual differences in metabolism, effect, and toxicity of drugs that undergo methyl conjugation. The approach used to study the pharmacogenetics of methylation may also be applicable to the study of inherited variations in other pathways of drug metabolism.

Original languageEnglish (US)
Pages (from-to)201-210
Number of pages10
JournalClinical Biochemistry
Issue number4
StatePublished - Aug 1988


  • catechol O-methyltransferase
  • histamine N-methyltransferase
  • methyl conjugation
  • methylation
  • pharmacogenetics
  • thiol methyltransferase
  • thiopurine methyltransferase

ASJC Scopus subject areas

  • Clinical Biochemistry


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