rs3735684
A SNP in the CYP2W1 gene on chromosome 7. Its most notable genotype is A;G: associated with increased colorectal cancer risk
- Gene
- CYP2W1
- Location
- Chr 7985,219 (GRCh38)
- Highest magnitude
- 1.0Minor
- Tested on
- 23andMe
- Minor allele frequency
- 6%
Genotypes
Plus strand, as in 23andMe and AncestryDNA files.
- G;GGoodcommon in complete genomics
- A;GMost notableBadassociated with increased colorectal cancer risk
- A;ABadassociated with increased colorectal cancer risk
SNPedia records rs3735684 on the minus strand: (C;C), (C;T), (T;T). 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.
- AverageG;G 99% A;G <1% A;A 0%
- European ancestry (Utah)G;G 99% A;G 2% A;A 0%
- Han Chinese (Beijing)G;G 100% A;G 0% A;A 0%
- Japanese (Tokyo)G;G 100% A;G 0% A;A 0%
- Yoruba (Nigeria)G;G 98% A;G 2% A;A 0%
Source and license
Adapted from rs3735684 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.