rs2228564

A SNP in the COL9A2 gene on chromosome 1. Its most notable genotype is T;T: common in clinvar

Gene
COL9A2
Location
Chr 140,307,477 (GRCh38)
Highest magnitude
0.0Typical
Tested on
Not on consumer chips

Genotypes

Plus strand, as in 23andMe and AncestryDNA files.

  1. T;TMost notableGoodcommon in clinvarTypical · 0.040% of people

SNPedia records rs2228564 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 9 HapMap populations.

  • AverageT;T 40%
  • European ancestry (Utah)T;T 67%
  • Han Chinese (Beijing)T;T 26%
  • Japanese (Tokyo)T;T 17%
  • African ancestry (Southwest US)T;T 50%
  • Chinese (Denver)T;T 21%
  • Gujarati IndianT;T 49%
  • Luhya (Kenya)T;T 29%
  • Mexican ancestry (Los Angeles)T;T 44%
  • TuscanT;T 55%

Other COL9A2 SNPs

All COL9A2 SNPs

Source and license

Adapted from rs2228564 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.