| | | Single nucleotide variant (splice acceptor variant) | Long QT syndrome | |
| | | Single nucleotide variant (missense variant) | Cardiovascular phenotype +5 more | GConflicting classifications of pathogenicity |
| | | Single nucleotide variant (splice acceptor variant) | Long QT syndrome 1 +3 more | GPathogenic/Likely pathogenic |
| | KCNQ1, KCNQ1OT1 (E367fs +4 more) | Duplication (frameshift variant) | Long QT syndrome 1 | |
| | | Single nucleotide variant (missense variant) | Long QT syndrome 1 | |
| | | Single nucleotide variant (splice acceptor variant) | Long QT syndrome +1 more | |
| | | Deletion (frameshift variant) | Long QT syndrome +2 more | |
| | | Single nucleotide variant (missense variant) | Long QT syndrome 1 +2 more | GConflicting classifications of pathogenicity |
| | | Single nucleotide variant (missense variant) | Long QT syndrome +3 more | |
| | | Single nucleotide variant (missense variant) | not provided +2 more | GConflicting classifications of pathogenicity |
| | | Single nucleotide variant (missense variant) | not provided +3 more | |
| | | Single nucleotide variant (missense variant) | Long QT syndrome 2 | |
| | | Single nucleotide variant (missense variant) | Long QT syndrome 1 +4 more | GConflicting classifications of pathogenicity |
| | | Single nucleotide variant (missense variant) | not provided +2 more | |
| | | Single nucleotide variant (missense variant) | not provided +1 more | GConflicting classifications of pathogenicity |
| | | Single nucleotide variant (missense variant) | Cardiac arrhythmia +6 more | |
| | | Single nucleotide variant (missense variant) | not provided +2 more | |
| | | Single nucleotide variant (missense variant) | Cardiac arrhythmia +5 more | |
| | | Single nucleotide variant (missense variant) | Cardiovascular phenotype +7 more | GPathogenic/Likely pathogenic |
| | | Single nucleotide variant (missense variant) | Jervell and Lange-Nielsen syndrome 1 +7 more | GConflicting classifications of pathogenicity |
| | | Single nucleotide variant (missense variant) | Cardiac arrhythmia +5 more | GPathogenic/Likely pathogenic |