Congenital long QT syndrome
|
0.200 |
GeneticVariation
|
disease |
CLINVAR |
Spectrum of mutations in long-QT syndrome genes. KVLQT1, HERG, SCN5A, KCNE1, and KCNE2.
|
10973849 |
2000 |
Congenital long QT syndrome
|
0.200 |
Biomarker
|
disease |
BEFREE |
In LQT1 subtype of inherited long QT syndrome, repolarization abnormalities originating from defective I(Ks) render patients vulnerable to ventricular arrhythmia during sudden sympathetic activation.
|
18365896 |
2008 |
Congenital long QT syndrome
|
0.200 |
GeneticVariation
|
disease |
BEFREE |
The most prevalent LQTS variant (LQT1) is caused by mutations in the KCNQ1 gene, with approximately half of the genotyped patients carrying KCNQ1 mutations.
|
18606002 |
2008 |
Congenital long QT syndrome
|
0.200 |
GeneticVariation
|
disease |
CLINVAR |
KCNQ1 mutations associated with Jervell and Lange-Nielsen syndrome and autosomal recessive Romano-Ward syndrome in India-expanding the spectrum of long QT syndrome type 1.
|
27041150 |
2016 |
Congenital long QT syndrome
|
0.200 |
Biomarker
|
disease |
BEFREE |
Mutations that induce loss of function (LOF) or dysfunction of the human KCNQ1 channel are responsible for susceptibility to a life-threatening heart rhythm disorder, the congenital long QT syndrome (LQTS).
|
29532034 |
2018 |
Congenital long QT syndrome
|
0.200 |
CausalMutation
|
disease |
CLINVAR |
Spectrum of mutations in long-QT syndrome genes. KVLQT1, HERG, SCN5A, KCNE1, and KCNE2.
|
10973849 |
2000 |
Congenital long QT syndrome
|
0.200 |
GeneticVariation
|
disease |
BEFREE |
Mutation analysis in congenital Long QT Syndrome--a case with missense mutations in KCNQ1 and SCN5A.
|
12820704 |
2003 |
Congenital long QT syndrome
|
0.200 |
GeneticVariation
|
disease |
CLINVAR |
Phenotype guided characterization and molecular analysis of Indian patients with long QT syndromes.
|
27485560 |
2016 |
Congenital long QT syndrome
|
0.200 |
GeneticVariation
|
disease |
BEFREE |
His history was noteworthy for congenital LQTS due to a point mutation in the KVLQT1-gene on chromosome 11.
|
15549512 |
2004 |
Congenital long QT syndrome
|
0.200 |
GeneticVariation
|
disease |
BEFREE |
Inherited long QT syndrome (LQTS) recently has been associated with mutations in genes coding for potassium (KVLQT1, KCNE1, and HERG) or sodium (SCN5A) ion channels involved in regulating either sodium inward or potassium outward currents of heart cells, resulting in prolongation of the repolarization period.
|
9654228 |
1998 |
Congenital long QT syndrome
|
0.200 |
GeneticVariation
|
disease |
BEFREE |
Several mutations linked to the LQTS have been identified, the most common of which have been found in the potassium channel KCNQ1 (LQT1) and hERG (LQT2) genes and in the sodium channel SCN5A (LQT3) gene.
|
27054604 |
2018 |
Congenital long QT syndrome
|
0.200 |
GeneticVariation
|
disease |
CLINVAR |
Recessive cardiac phenotypes in induced pluripotent stem cell models of Jervell and Lange-Nielsen syndrome: disease mechanisms and pharmacological rescue.
|
25453094 |
2014 |
Congenital long QT syndrome
|
0.200 |
CausalMutation
|
disease |
CLINVAR |
KCNQ1 mutations associated with Jervell and Lange-Nielsen syndrome and autosomal recessive Romano-Ward syndrome in India-expanding the spectrum of long QT syndrome type 1.
|
27041150 |
2016 |
Congenital long QT syndrome
|
0.200 |
CausalMutation
|
disease |
CLINVAR |
LQTS in Northern BC: homozygosity for KCNQ1 V205M presents with a more severe cardiac phenotype but with minimal impact on auditory function.
|
23844633 |
2014 |
Congenital long QT syndrome
|
0.200 |
GeneticVariation
|
disease |
BEFREE |
At least 16 genes have been implicated in LQTS; the yield of genetic analysis of 3 genes (KCNQ1, KCNH2, and SCN5A) is about 70%, with KCNQ1 mutations accounting for ∼50% of positive cases.
|
28438721 |
2017 |
Congenital long QT syndrome
|
0.200 |
GeneticVariation
|
disease |
CLINVAR |
A spectrum of functional effects for disease causing mutations in the Jervell and Lange-Nielsen syndrome.
|
11530100 |
2001 |
Congenital long QT syndrome
|
0.200 |
GeneticVariation
|
disease |
BEFREE |
These data extend the range of known KCNQ1 mutations associated with both recessive and dominant forms of congenital long QT syndrome, and demonstrate that the R518X allele may be associated with or without congenital deafness.
|
10737999 |
2000 |
Congenital long QT syndrome
|
0.200 |
Biomarker
|
disease |
BEFREE |
LQT1 is a subtype of LQTS caused by mutations in KCNQ1, affecting the slow delayed-rectifier potassium current (<i>I</i><sub>Ks</sub>), which is essential for cardiac repolarization.
|
30967788 |
2019 |
Congenital long QT syndrome
|
0.200 |
GeneticVariation
|
disease |
CLINVAR |
Spectrum and prevalence of mutations from the first 2,500 consecutive unrelated patients referred for the FAMILION long QT syndrome genetic test.
|
19716085 |
2009 |
Congenital long QT syndrome
|
0.200 |
CausalMutation
|
disease |
CLINVAR |
A KCNQ1 V205M missense mutation causes a high rate of long QT syndrome in a First Nations community of northern British Columbia: a community-based approach to understanding the impact.
|
18580685 |
2008 |
Congenital long QT syndrome
|
0.200 |
CausalMutation
|
disease |
CLINVAR |
Aggregate penetrance of genomic variants for actionable disorders in European and African Americans.
|
27831900 |
2016 |
Congenital long QT syndrome
|
0.200 |
GeneticVariation
|
disease |
CLINVAR |
Compound mutations: a common cause of severe long-QT syndrome.
|
15051636 |
2004 |
Congenital long QT syndrome
|
0.200 |
GeneticVariation
|
disease |
BEFREE |
The most common form of LQTS is due to mutations in the potassium channel gene KVLQT1, but their effects on associated currents are still unknown.
|
9302275 |
1997 |
Congenital long QT syndrome
|
0.200 |
GeneticVariation
|
disease |
CLINVAR |
Calmodulin is essential for cardiac IKS channel gating and assembly: impaired function in long-QT mutations.
|
16556865 |
2006 |
Congenital long QT syndrome
|
0.200 |
CausalMutation
|
disease |
CLINVAR |
Autosomal recessive long QT syndrome, type 1 in eight families from Saudi Arabia.
|
28944242 |
2017 |