rs6025 F5
Factor V Leiden homozygous. 50-80x increased risk for venous thromboembolism (VTE).
What is rs6025?
rs6025 is a single-nucleotide polymorphism (SNP) in the F5 gene (Coagulation factor V). Each person carries two copies, one from each parent, so a result is reported as a pair of letters such as TT. The table below describes what studies associate with each genotype; the association is statistical, across populations, and is not a diagnosis.
What does each rs6025 genotype mean?
| Genotype | Association | What the evidence says | Confidence |
|---|---|---|---|
| TT | high | Factor V Leiden homozygous. 50-80x increased risk for venous thromboembolism (VTE). | 95% |
| CT / TC | elevated | Factor V Leiden heterozygous. 5-10x increased VTE risk. | 93% |
| CC | typical / lower | Normal Factor V. Typical clotting risk. | 95% |
How common is the T allele of rs6025?
Minor-allele frequency by population (gnomAD / 1000 Genomes):
| European | 3.5% |
|---|---|
| East Asian | 0.1% |
| African | 0.1% |
| South Asian | 1.0% |
| Admixed American | 2.0% |
| Global | 1.5% |
Which drugs have annotations for rs6025?
PharmGKB clinical annotations (level 1A is the strongest evidence, 4 the weakest):
| Drug | Annotation type | Evidence level |
|---|---|---|
| hormonal contraceptives for systemic use | Toxicity | 2B |
Is rs6025 on 23andMe and AncestryDNA chips?
Yes — it is genotyped directly on 23andMe V3, 23andMe V4, 23andMe V5, AncestryDNA V1, AncestryDNA V2. Orviva reads it from a raw-data export without imputation.
Sources
Upload your 23andMe, AncestryDNA or WeGene raw file → · Ask G2: “What is my genotype at rs6025 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.