{{Rsnum
|rsid=121912515
|Chromosome=7
|Orientation=minus
|geno1=(C;C)
|geno2=(C;G)
|geno3=(G;G)
|Gene=KCNH2
|position=150974720
|Gene_s=KCNH2
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
}}{{omim
|id=152427
|rsnum=121912515
|variant=0023
}}{{ClinVar
|rsid=121912515
|Reversed=1
|FwdREF=C
|FwdALT=G,T
|REF=G
|ALT=A,C
|RSPOS=150671808
|CHROM=7
|dbSNPBuildID=133
|SSR=0
|SAO=1
|VP=0x050368000000000002110100
|GENEINFO=KCNH2:3757
|GENE_NAME=KCNH2
|GENE_ID=3757
|WGT=0
|VC=SNV
|CLNALLE=1; 2
|CLNHGVS=NC_000007.13:g.150671808G>A; NC_000007.13:g.150671808G>C
|CLNORIGIN=1
|CLNSRCID=
152427.0023
|CLNSIG=5
|CLNCUI=
|CLNACC=
RCV000058187.1; RCV000015525.24; RCV000058186.1
|Tags=RV;PM;PMC;S3D;SLO;OTHERKG;LSD;OM
|CLNDBN=not provided; Long QT syndrome 2/3, digenic
|CLNDSDB=MedGen
|CLNDSDBID=C3276240
|CLNSRC=OMIM Allelic Variant
|Disease=not provided; Long QT syndrome 2/3
}}{{PMID|16922724}} Spectrum of pathogenic mutations and associated polymorphisms in a cohort of 44 unrelated patients with long QT syndrome.

{{PMID|19716085|OA=1
}} Spectrum and prevalence of mutations from the first 2,500 consecutive unrelated patients referred for the FAMILION long QT syndrome genetic test.