rs1244688796
Variant summary
Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PVS1PP5_Moderate
The NM_000219.6(KCNE1):c.51G>A(p.Trp17Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★).
Frequency
Genomes: not found (cov: 13)
Exomes 𝑓: 0.0000011 ( 0 hom. )
Failed GnomAD Quality Control
Consequence
KCNE1
NM_000219.6 stop_gained
NM_000219.6 stop_gained
Scores
2
3
2
Clinical Significance
Conservation
PhyloP100: 0.475
Genes affected
KCNE1 (HGNC:6240): (potassium voltage-gated channel subfamily E regulatory subunit 1) The product of this gene belongs to the potassium channel KCNE family. Potassium ion channels are essential to many cellular functions and show a high degree of diversity, varying in their electrophysiologic and pharmacologic properties. This gene encodes a transmembrane protein known to associate with the product of the KVLQT1 gene to form the delayed rectifier potassium channel. Mutation in this gene are associated with both Jervell and Lange-Nielsen and Romano-Ward forms of long-QT syndrome. Alternatively spliced transcript variants encoding the same protein have been identified. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 10 ACMG points.
PVS1
?
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. There are 56 pathogenic variants in the truncated region.
PP5
?
Variant 21-34449584-C-T is Pathogenic according to our data. Variant chr21-34449584-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 547164.Status of the report is criteria_provided_single_submitter, 1 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
KCNE1 | NM_000219.6 | c.51G>A | p.Trp17Ter | stop_gained | 4/4 | ENST00000399286.3 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
KCNE1 | ENST00000399286.3 | c.51G>A | p.Trp17Ter | stop_gained | 4/4 | 1 | NM_000219.6 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 13
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GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251288Hom.: 0 AF XY: 0.00000736 AC XY: 1AN XY: 135868
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GnomAD4 exome Data not reliable, filtered out with message: AS_VQSR AF: 0.00000110 AC: 1AN: 913074Hom.: 0 Cov.: 14 AF XY: 0.00000217 AC XY: 1AN XY: 461870
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Data not reliable, filtered out with message: AS_VQSR
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GnomAD4 genome ? Cov.: 13
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ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Jervell and Lange-Nielsen syndrome 2 Pathogenic:1
Pathogenic, no assertion criteria provided | research | National Institute on Deafness and Communication Disorders, National Institutes of Health | Jun 21, 2018 | - - |
Long QT syndrome Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Invitae | Oct 28, 2021 | For these reasons, this variant has been classified as Pathogenic. This variant disrupts a region of the KCNE1 protein in which other variant(s) (p.Arg98Trp) have been determined to be pathogenic (PMID: 10973849, 16922724, 17341399, 21070882, 30530868, 32058015). This suggests that this is a clinically significant region of the protein, and that variants that disrupt it are likely to be disease-causing. ClinVar contains an entry for this variant (Variation ID: 547164). This premature translational stop signal has been observed in individual(s) with nonsyndromic deafness or long QT syndrome (PMID: 19716085, 30461122, 31941373). This variant is present in population databases (no rsID available, gnomAD 0.0009%). This sequence change creates a premature translational stop signal (p.Trp17*) in the KCNE1 gene. While this is not anticipated to result in nonsense mediated decay, it is expected to disrupt the last 113 amino acid(s) of the KCNE1 protein. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
Cadd
Pathogenic
Dann
Uncertain
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Benign
D
MutationTaster
Benign
D;D;D;D;D;D;D;D;D;D;D;D
Vest4
GERP RS
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at