Variant Gene Risk Allele Score vda Association Type Original DB Sentence supporting the association PMID PMID Year
dbSNP: rs780676796
rs780676796
0.010 GeneticVariation BEFREE The compound heterozygous mutations of W176X and G589S coexisting in KCNQ1 gene of homologous chromosomes, resulting in more severe phenotype, are the likely pathogenic and genetic risks of LQTS and USD in this Chinese family. 31565860

2020

dbSNP: rs876661350
rs876661350
0.010 GeneticVariation BEFREE The compound heterozygous mutations of W176X and G589S coexisting in KCNQ1 gene of homologous chromosomes, resulting in more severe phenotype, are the likely pathogenic and genetic risks of LQTS and USD in this Chinese family. 31565860

2020

dbSNP: rs1343191564
rs1343191564
0.010 GeneticVariation BEFREE Here, we functionally analyzed p.S1961N Cav1.2 channels to elucidate whether this mutation regulates the expressivity of the long QT syndrome phenotype in this family. 29691127

2019

dbSNP: rs16847548
rs16847548
0.010 GeneticVariation BEFREE The patient is also homozygous for the two minor variants rs4657139 and rs16847548 on the NOS1AP gene, associated with greater risk for cardiac arrest and sudden death in LQTS mutation carriers of the founder population. hiPSCs, obtained using four retroviruses encoding the reprogramming factors OCT4, SOX2, cMYC and KLF4, display pluripotent stem cell characteristics, and can be differentiated into spontaneously beating cardiomyocytes (hiPSC-CMs). 30878014

2019

dbSNP: rs28937316
rs28937316
0.010 GeneticVariation BEFREE A known long QT syndrome-related mutation in Nav1.5 cardiac channels (p.R1644H) was found in 4 members of a Spanish family but only 1 of them showed prolongation of the QT interval. 29691127

2019

dbSNP: rs377564636
rs377564636
0.010 GeneticVariation BEFREE A known long QT syndrome-related mutation in Nav1.5 cardiac channels (p.R1644H) was found in 4 members of a Spanish family but only 1 of them showed prolongation of the QT interval. 29691127

2019

dbSNP: rs4657139
rs4657139
0.010 GeneticVariation BEFREE The patient is also homozygous for the two minor variants rs4657139 and rs16847548 on the NOS1AP gene, associated with greater risk for cardiac arrest and sudden death in LQTS mutation carriers of the founder population. hiPSCs, obtained using four retroviruses encoding the reprogramming factors OCT4, SOX2, cMYC and KLF4, display pluripotent stem cell characteristics, and can be differentiated into spontaneously beating cardiomyocytes (hiPSC-CMs). 30878014

2019

dbSNP: rs749945590
rs749945590
0.010 GeneticVariation BEFREE Here, we functionally analyzed p.S1961N Cav1.2 channels to elucidate whether this mutation regulates the expressivity of the long QT syndrome phenotype in this family. 29691127

2019

dbSNP: rs1064795287
rs1064795287
0.010 GeneticVariation BEFREE These observations suggest that the p.Pro963Thr mutation is not a monogenic disease-causing LQTS mutation despite evidence of co-segregation in two siblings affected by SIDS. 29331839

2018

dbSNP: rs199473014
rs199473014
0.010 GeneticVariation BEFREE These observations suggest that the p.Pro963Thr mutation is not a monogenic disease-causing LQTS mutation despite evidence of co-segregation in two siblings affected by SIDS. 29331839

2018

dbSNP: rs794728535
rs794728535
0.010 GeneticVariation BEFREE Our objective was to investigate the functional consequences of KCNQ1-R562S mutation in an atypical form of KCNQ1-linked LQTS. 30170673

2018

dbSNP: rs104893714
rs104893714
0.010 GeneticVariation BEFREE Methods To examine the effects of human LQTS-associated cav-3 mutations on HCN4-channel function, HEK293-cells were cotransfected with HCN4 and wild-type (WT) cav-3 or a LQTS-associated cav-3 mutant (T78M, A85T, S141R, or F97C). 28648120

2017

dbSNP: rs1085307479
rs1085307479
0.010 GeneticVariation BEFREE Elucidating arrhythmogenic mechanisms of long-QT syndrome CALM1-F142L mutation in patient-specific induced pluripotent stem cell-derived cardiomyocytes. 28158429

2017

dbSNP: rs11551462
rs11551462
0.010 GeneticVariation BEFREE Elucidating arrhythmogenic mechanisms of long-QT syndrome CALM1-F142L mutation in patient-specific induced pluripotent stem cell-derived cardiomyocytes. 28158429

2017

dbSNP: rs1167115018
rs1167115018
0.010 GeneticVariation BEFREE The population also contain individuals with the Swedish long QT syndrome (LQTS1) founder mutation (<i>KCNQ1</i>/p.Y111C) which in homozygotes causes the Jervell & Lange Nielsen syndrome (JLNS) and hearing loss (HL).Aims of the study were to test whether the Swedish long QT founder mutation originated in an ancestral HFE family and if carriers had an increased risk for hemochromatosis (HH), a treatable disorder. 29270100

2017

dbSNP: rs120074187
rs120074187
0.010 GeneticVariation BEFREE Ala300Thr is known to cause long QT syndrome in the homozygous state, while Pro535Thr is novel and of unknown clinical significance. 28600177

2017

dbSNP: rs1299120831
rs1299120831
0.010 GeneticVariation BEFREE We generated and characterized the functional properties of induced pluripotent stem cell-derived cardiomyocytes from a patient with D130G-CALM2-mediated LQTS, thus creating a platform with which to devise and test novel therapeutic strategies. 27765793

2017

dbSNP: rs1380382303
rs1380382303
0.010 GeneticVariation BEFREE Through this mechanism, we identified that p.L353L can precipitate QT prolongation by itself and produce a clinically relevant interactive effect in conjunction with other LQTS variants. 28264985

2017

dbSNP: rs199472910
rs199472910
0.010 GeneticVariation BEFREE Heterozygous p.His492Tyr variant was identified in 10 LQTS families. 27816319

2017

dbSNP: rs199744595
rs199744595
0.010 GeneticVariation BEFREE Elucidating arrhythmogenic mechanisms of long-QT syndrome CALM1-F142L mutation in patient-specific induced pluripotent stem cell-derived cardiomyocytes. 28158429

2017

dbSNP: rs267607277
rs267607277
0.010 GeneticVariation BEFREE We generated LQT15-hiPSCs from a 12-year-old boy with LQTS carrying a CALM2-N98S mutation and differentiated these hiPSCs into cardiomyocytes (LQT15-hiPSC-CMs). 28335032

2017

dbSNP: rs398124647
rs398124647
0.010 GeneticVariation BEFREE We generated LQT15-hiPSCs from a 12-year-old boy with LQTS carrying a CALM2-N98S mutation and differentiated these hiPSCs into cardiomyocytes (LQT15-hiPSC-CMs). 28335032

2017

dbSNP: rs730882252
rs730882252
0.010 GeneticVariation BEFREE We generated and characterized the functional properties of induced pluripotent stem cell-derived cardiomyocytes from a patient with D130G-CALM2-mediated LQTS, thus creating a platform with which to devise and test novel therapeutic strategies. 27765793

2017

dbSNP: rs199472842
rs199472842
0.010 GeneticVariation BEFREE We have developed a model for the long QT syndrome type-5 in rabbits (LQT5 ) with cardiac-specific overexpression of a mutant (G52R) KCNE1 β-subunit of the channel that carries the slow delayed-rectifier K(+) -current (IKs ). 27076034

2016

dbSNP: rs786205745
rs786205745
0.010 GeneticVariation BEFREE Two probands were identified with mutations in CACNA1C, one with a TS-associated mutation, G406R, and a second with genotype-negative LQTS. 27390944

2016