rs3743076

A SNP in the CHRNA3 gene on chromosome 15. Its most notable genotype is T;T: common in complete genomics

Gene
CHRNA3
Location
Chr 1578,616,885 (GRCh38)
Highest magnitude
0.0Typical
Tested on
Not on consumer chips
Minor allele frequency
10%

Genotypes

Plus strand, as in 23andMe and AncestryDNA files.

  1. T;TMost notableGoodcommon in complete genomicsTypical · 0.070% of people

SNPedia records rs3743076 on the minus strand: (A;A). 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.

  • AverageT;T 70%
  • European ancestry (Utah)T;T 100%
  • Han Chinese (Beijing)T;T 60%
  • Japanese (Tokyo)T;T 42%
  • Yoruba (Nigeria)T;T 76%

Other CHRNA3 SNPs

All CHRNA3 SNPs

Source and license

Adapted from rs3743076 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.