rs3731245
A SNP in the CDKN2A gene on chromosome 9. Its most notable genotype is C;C: common in complete genomics
- Gene
- CDKN2A
- Location
- Chr 921,972,446 (GRCh38)
- Highest magnitude
- 0.0Typical
- Tested on
- 23andMe
- Minor allele frequency
- 6%
Genotypes
Plus strand, as in 23andMe and AncestryDNA files.
SNPedia records rs3731245 on the minus strand: (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.
- AverageC;C 80%
- European ancestry (Utah)C;C 100%
- Han Chinese (Beijing)C;C 60%
- Japanese (Tokyo)C;C 58%
- Yoruba (Nigeria)C;C 100%
Related
Other CDKN2A SNPs
- rs1800586A;CPancreatic cancer/Melanoma SyndromeVery important
- rs36204594G;TPancreatic cancer/Melanoma SyndromeVery important
- rs104894098A;TPancreatic cancer/Melanoma SyndromeVery important
- rs121913381A;CPancreatic cancer/Melanoma SyndromeVery important
- rs199907548A;CPancreatic cancer/Melanoma SyndromeVery important
- rs587782206-;TGGCPancreatic cancer/Melanoma SyndromeVery important
- rs730881672-;CTPancreatic cancer/Melanoma SyndromeVery important
- rs730881675-;ACCCGTGCACGACGPancreatic cancer/Melanoma SyndromeVery important
Source and license
Adapted from rs3731245 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.