rs1805007(C;T)

Carrier of a red hair associated variant; higher risk of melanoma

Magnitude
2.7Worth knowing
Repute
Bad
Frequency
5%Average of 8 populations
On SNPedia
rs1805007(C;T)
Gene
MC1R

Frequency

Share of people with C;T in each HapMap population.

  • European ancestry (Utah)22%
  • Tuscan6%
  • African ancestry (Southwest US)4%
  • Mexican ancestry (Los Angeles)2%
  • Han Chinese (Beijing)2%
  • Gujarati Indian1%
  • Japanese (Tokyo)0%
  • Yoruba (Nigeria)0%

Other genotypes of rs1805007

  1. C;CGoodnormal riskTypical · 0.095% of people
  2. T;TMost notableBadincreased response to anesthetics; 13-20x higher likelihood of red hair; increased risk of melanomaImportant · 3.2<1% of people

All about rs1805007

Notes

From SNPedia

this genotype raises the melanoma risk 42% (95% CI, 15–76%) higher than that among persons not carrying a similar allele.

References

Source and license

Adapted from rs1805007(C;T) 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.