DrugDB00675 (Tamoxifen)
Interacting Gene/EnzymeCytochrome P450 2D6
Gene NameCYP2D6
UniProt IDP10635
Defining Change(s)
  • 100C>T (rs1065852 )
  • -1426C>T
  • variable number of A’s in the region -1258 to -1237a
  • -1235A>G
  • -1000G>A
  • 1039C>T
  • 1661G>C
  • gene conversion to CYP2D7 in exon 9
  • 4180G>C
Allele NameCYP2D6*36
Genotype(s)Not Available
Type(s)Effect Inferred
GroupsNon-functional CYP2D6
DescriptionPoor response to drug treatment, shorter time to relapse
  1. Gaedigk A, Bradford LD, Alander SW, Leeder JS: CYP2D6*36 gene arrangements within the cyp2d6 locus: association of CYP2D6*36 with poor metabolizer status. Drug Metab Dispos. 2006 Apr;34(4):563-9. Epub 2006 Jan 13. [PubMed:16415111 ]
  2. Sakuyama K, Sasaki T, Ujiie S, Obata K, Mizugaki M, Ishikawa M, Hiratsuka M: Functional characterization of 17 CYP2D6 allelic variants (CYP2D6.2, 10, 14A-B, 18, 27, 36, 39, 47-51, 53-55, and 57). Drug Metab Dispos. 2008 Dec;36(12):2460-7. doi: 10.1124/dmd.108.023242. Epub 2008 Sep 10. [PubMed:18784265 ]
  3. Johansson I, Oscarson M, Yue QY, Bertilsson L, Sjoqvist F, Ingelman-Sundberg M: Genetic analysis of the Chinese cytochrome P4502D locus: characterization of variant CYP2D6 genes present in subjects with diminished capacity for debrisoquine hydroxylation. Mol Pharmacol. 1994 Sep;46(3):452-9. [PubMed:7935325 ]
  4. Leathart JB, London SJ, Steward A, Adams JD, Idle JR, Daly AK: CYP2D6 phenotype-genotype relationships in African-Americans and Caucasians in Los Angeles. Pharmacogenetics. 1998 Dec;8(6):529-41. [PubMed:9918137 ]
  5. The Human Cytochrome P450 (CYP) Allele Nomenclature Database [Link]