N-acetyltransferase 2

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Protein NAT2 PDB 2pfr.png
Available structures
PDBOrtholog search: PDBe RCSB
AliasesNAT2, AAC2, NAT-2, PNAT, N-acetyltransferase 2, N-acetyltransferase 2 (arylamine N-acetyltransferase)
External IDsOMIM: 612182 MGI: 97279 HomoloGene: 115468 GeneCards: NAT2
RefSeq (mRNA)



RefSeq (protein)



Location (UCSC)Chr 8: 18.39 – 18.4 Mbn/a
PubMed search[2][3]
View/Edit HumanView/Edit Mouse

N-acetyltransferase 2 (arylamine N-acetyltransferase), also known as NAT2, is an enzyme which in humans is encoded by the NAT2 gene.[4]


This gene encodes a type of N-acetyltransferase. The NAT2 isozyme functions to both activate and deactivate arylamine and hydrazine drugs and carcinogens. Polymorphisms in this gene are responsible for the N-acetylation polymorphism in which human populations segregate into rapid, intermediate, and slow acetylator phenotypes. Polymorphisms in NAT2 are also associated with higher incidences of cancer and drug toxicity. A second arylamine N-acetyltransferase gene (NAT1) is located near NAT2.[5]

Phenotype prediction[edit]

The NAT2 acetylator phenotype can be inferred from NAT2 genotype (a combination of SNPs observed in a given individual).[6][7][8][9]


  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000156006 - Ensembl, May 2017
  2. ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  3. ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. ^ Vatsis KP, Weber WW, Bell DA, Dupret JM, Evans DA, Grant DM, Hein DW, Lin HJ, Meyer UA, Relling MV (February 1995). "Nomenclature for N-acetyltransferases". Pharmacogenetics. 5 (1): 1–17. doi:10.1097/00008571-199502000-00001. PMID 7773298.
  5. ^ "Entrez Gene: NAT2 N-acetyltransferase 2 (arylamine N-acetyltransferase)".
  6. ^ "NAT2PRED: a computational predictor of the human N-AcetylTransferase-2 (NAT2) acetylator phenotype". State University of New York – Albany. Retrieved 2009-04-30.
  7. ^ Kuznetsov IB, McDuffie M, Moslehi R (May 2009). "A web server for inferring the human N-acetyltransferase-2 (NAT2) enzymatic phenotype from NAT2 genotype". Bioinformatics. 25 (9): 1185–6. doi:10.1093/bioinformatics/btp121. PMC 2672629. PMID 19261719.
  8. ^ Agúndez JA (2008). "Polymorphisms of human N-acetyltransferases and cancer risk". Curr. Drug Metab. 9 (6): 520–31. doi:10.2174/138920008784892083. PMID 18680472.
  9. ^ Agúndez JA (2008). "N-acetyltransferases: lessons learned from eighty years of research". Curr. Drug Metab. 9 (6): 463–4. doi:10.2174/138920008784892146. PMID 18680465.

Further reading[edit]

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