rs199473365
Variant summary
Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2BP4_ModerateBP6
The NM_172201.2(KCNE2):c.230G>A(p.Arg77Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,614,020 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R77W) has been classified as Uncertain significance.
Frequency
Consequence
NM_172201.2 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -1 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
KCNE2 | NM_172201.2 | c.230G>A | p.Arg77Gln | missense_variant | 2/2 | ENST00000290310.4 | |
LOC105372791 | XR_937683.3 | n.1146C>T | non_coding_transcript_exon_variant | 2/2 | |||
LOC105372791 | XR_007067848.1 | n.1181C>T | non_coding_transcript_exon_variant | 2/2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
KCNE2 | ENST00000290310.4 | c.230G>A | p.Arg77Gln | missense_variant | 2/2 | 1 | NM_172201.2 | P1 | |
ENST00000440403.2 | n.581C>T | non_coding_transcript_exon_variant | 2/3 | 3 |
Frequencies
GnomAD3 genomes ? AF: 0.00000657 AC: 1AN: 152130Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.00000795 AC: 2AN: 251438Hom.: 0 AF XY: 0.0000147 AC XY: 2AN XY: 135904
GnomAD4 exome AF: 6.84e-7 AC: 1AN: 1461890Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1AN XY: 727246
GnomAD4 genome ? AF: 0.00000657 AC: 1AN: 152130Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74322
ClinVar
Submissions by phenotype
Long QT syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | research | CSER _CC_NCGL, University of Washington | Jun 01, 2014 | Low GERP score may suggest that this variant may belong in a lower pathogenicity class - |
Cardiovascular phenotype Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Ambry Genetics | Sep 24, 2021 | This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. - |
Congenital long QT syndrome Other:1
not provided, no classification provided | literature only | Cardiovascular Biomedical Research Unit, Royal Brompton & Harefield NHS Foundation Trust | - | This variant has been reported as associated with Long QT syndrome in the following publications (PMID:19716085). This is a literature report, and does not necessarily reflect the clinical interpretation of the Imperial College / Royal Brompton Cardiovascular Genetics laboratory. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at