rs11668399 CYP2F2P - CYP2A6
G allele associated with increased Cigarettes smoked per day (β=0.067). [GWAS Catalog]
What is rs11668399?
rs11668399 is a single-nucleotide polymorphism (SNP) in the CYP2F2P - CYP2A6 gene. Each person carries two copies, one from each parent, so a result is reported as a pair of letters such as GG. The table below describes what studies associate with each genotype; the association is statistical, across populations, and is not a diagnosis.
What does each rs11668399 genotype mean?
| Genotype | Association | What the evidence says | Confidence |
|---|---|---|---|
| GG | increased | G allele associated with increased Cigarettes smoked per day (β=0.067). [GWAS Catalog] | 85% |
| CC | high | C allele associated with substantially increased risk of Caffeine metabolism (plasma 1,7-dimethylxanthine (paraxanthine) to 1,3,7-trim... (OR=6.37). [GWAS Catalog] | 70% |
Is rs11668399 on 23andMe and AncestryDNA chips?
Chip coverage is not recorded for this variant. Orviva reports it when a raw-data file contains it directly or via a well-correlated proxy SNP, and says so when it does not.
Sources
- PubMed 27702941
- GWAS Catalog
- GCST003851
Upload your 23andMe, AncestryDNA or WeGene raw file → · Ask G2: “What is my genotype at rs11668399 and what does it mean for me?”
Genetic associations describe risk across populations, not a diagnosis for any one person. Most variants shift risk modestly and act alongside lifestyle, environment and other genes. Consumer DNA chips do not read every position and can be wrong at any single one. For general education only; talk to a clinician or genetic counsellor before acting on anything here, and never change a prescribed medicine without your prescriber.