rs4987076

A SNP in the NAT1 gene on chromosome 8. Its most notable genotype is A;G: NAT1*17 allele

Gene
NAT1
Location
Chr 818,222,492 (GRCh38)
Highest magnitude
1.5Minor
Tested on
23andMe, AncestryDNA, FamilyTreeDNA
Minor allele frequency
2%

Genotypes

As shown in 23andMe and AncestryDNA files.

  1. A;GMost notableGoodNAT1*17 alleleMinor · 1.52% of people
  2. G;GGoodcommon in clinvarTypical · 0.098% of people

On SNPedia: (A;G), (G;G). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.

Frequency

Share of each genotype in 4 HapMap populations.

  • AverageA;G 2% G;G 98%
  • European ancestry (Utah)A;G 5% G;G 95%
  • Han Chinese (Beijing)A;G 0% G;G 100%
  • Japanese (Tokyo)A;G 0% G;G 100%
  • Yoruba (Nigeria)A;G 2% G;G 98%

Other NAT1 SNPs

All NAT1 SNPs

Notes

From SNPedia

Notes

rs4987076 is a SNP tagging the NAT1*17 allele. See OMIM 108345.0002 for more information.

A;G

see discussion at rs4987076

Source and license

Adapted from rs4987076 on SNPedia, using a snapshot taken October 16, 2026. SNPedia content is shared under CC BY-NC-SA 3.0 US, and this page is shared under the same license.

SNPedia is a community-edited wiki. Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice. Magnitude is a community rating of how interesting a genotype is, not a risk score.