{{Rsnum
|rsid=121909580
|Chromosome=20
|Orientation=minus
|geno1=(C;C)
|geno2=(C;T)
|geno3=(T;T)
|Gene=CHRNA4
|position=63350572
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|Gene_s=CHRNA4
}}{{omim
|id=118504
|rsnum=121909580
|variant=0002
}}{{ClinVar
|rsid=121909580
|Reversed=1
|FwdREF=C
|FwdALT=T
|REF=G
|ALT=A
|RSPOS=61981924
|CHROM=20
|dbSNPBuildID=133
|SSR=0
|SAO=1
|VP=0x050360000000000002110100
|GENEINFO=CHRNA4:1137
|GENE_NAME=CHRNA4
|GENE_ID=1137
|WGT=0
|VC=SNV
|CLNALLE=1
|CLNHGVS=NC_000020.10:g.61981924G>A
|CLNSRC=GeneReviews; OMIM Allelic Variant
|CLNORIGIN=1
|CLNSRCID=NBK1169; 118504.0002
|CLNSIG=5
|CLNCUI=C1838049
|CLNDBN=Epilepsy, nocturnal frontal lobe, type 1
|Disease=Epilepsy
|CLNACC=RCV000019050.23
|Tags=RV;PM;S3D;SLO;OTHERKG;LSD;OM
|CLNDSDB=GeneReviews:MedGen:OMIM:Orphanet
|CLNDSDBID=NBK1169:C1838049:600513:98784
}}