{{Rsnum
|rsid=4917639
|Gene=CYP2C9
|Chromosome=10
|position=96725535
|Orientation=plus
|GMAF=0.1694
|Assembly=GRCh37
|GenomeBuild=37.1
|dbSNPBuild=131
|geno1=(A;A)
|geno2=(A;C)
|geno3=(C;C)
}}
{{ population diversity
| geno1=(A;A)
| geno2=(A;C)
| geno3=(C;C)
| CEU | 63.7 | 31.0 | 5.3
| HCB | 85.3 | 13.2 | 1.5
| JPT | 82.1 | 16.1 | 1.8
| YRI | 68.0 | 28.6 | 3.4
| ASW | 63.2 | 29.8 | 7.0
| CHB | 85.3 | 13.2 | 1.5
| CHD | 84.3 | 15.7 | 0.0
| GIH | 65.0 | 32.0 | 3.0
| LWK | 57.3 | 39.1 | 3.6
| MEX | 67.2 | 32.8 | 0.0
| MKK | 66.2 | 28.6 | 5.2
| TSI | 58.8 | 39.2 | 2.0
| HapMapRevision=28
}}{{PharmGKB
|RSID=rs4917639
|Name_s=CYP2C9(*2*3 tag)
|Gene_s=CYP2C9
|Feature=
|Evidence=PubMed ID:18535201
|Annotation=In a GWAS study, this SNP was modestly associated with warfarin dose, and was in perfect linkage disequilibrium with rs4086116.
|Drugs=warfarin
|Drug Classes=
|Diseases=
|Curation Level=Curated
|PharmGKB Accession ID=PA161748413
}}

{{PMID Auto
|PMID=22321278
|Title=[Impact of CYP2C9 and VKORC1 polymorphism on warfarin response during initiation of therapy]
}}

{{PMID Auto
|PMID=17048007
|Title=Association of warfarin dose with genes involved in its action and metabolism.
|OA=1
}}

{{PMID Auto
|PMID=18574025
|Title=The largest prospective warfarin-treated cohort supports genetic forecasting.
|OA=1
}}

{{PMID Auto
|PMID=19300499
|Title=A genome-wide association study confirms VKORC1, CYP2C9, and CYP4F2 as principal genetic determinants of warfarin dose.
|OA=1
}}

{{PMID Auto
|PMID=22178823
|Title=[Distribution of variant alleles association with warfarin pharmacokinetics and pharmacodynamics in the Han population in China].
}}

{{GET Evidence
|impact=pharmacogenetic
|qualified_impact=Insufficiently evaluated pharmacogenetic
|inheritance=unknown
|quality_scores=Array
|dbsnp_id=rs4917639
|overall_frequency_n=24
|overall_frequency_d=128
|overall_frequency=0.1875
|n_genomes=16
|n_genomes_annotated=0
|n_haplomes=17
|n_articles=1
|n_articles_annotated=0
|in_pharmgkb=Y
|autoscore=1
|webscore=N
}}

{{on chip | 23andMe v1}}
{{on chip | 23andMe v2}}
{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}
{{on chip | FTDNA2}}
{{on chip | FTDNA}}
{{on chip | HumanOmni1Quad}}
{{on chip | Illumina Human 1M}}