3-38550878-G-T
Variant summary
Our verdict is Uncertain significance. Variant got 3 ACMG points: 5P and 2B. PM2PM5PP2BP4_Moderate
The NM_001099404.2(SCN5A):c.5494C>A(p.Gln1832Lys) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 13/23 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Q1832E) has been classified as Likely benign.
Frequency
Consequence
NM_001099404.2 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 3 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
SCN5A | NM_001099404.2 | c.5494C>A | p.Gln1832Lys | missense_variant | 28/28 | ENST00000413689.6 | |
SCN5A | NM_000335.5 | c.5491C>A | p.Gln1831Lys | missense_variant | 28/28 | ENST00000423572.7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
SCN5A | ENST00000413689.6 | c.5494C>A | p.Gln1832Lys | missense_variant | 28/28 | 5 | NM_001099404.2 | P4 | |
SCN5A | ENST00000423572.7 | c.5491C>A | p.Gln1831Lys | missense_variant | 28/28 | 1 | NM_000335.5 | A1 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD4 exome Cov.: 32
GnomAD4 genome ? Cov.: 33
ClinVar
Submissions by phenotype
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Mar 05, 2019 | This variant has not been reported in the literature in individuals with SCN5A-related conditions. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The lysine amino acid residue is found in multiple mammalian species, suggesting that this missense change does not adversely affect protein function. These predictions have not been confirmed by published functional studies and their clinical significance is uncertain. This variant is not present in population databases (ExAC no frequency). This sequence change replaces glutamine with lysine at codon 1832 of the SCN5A protein (p.Gln1832Lys). The glutamine residue is moderately conserved and there is a small physicochemical difference between glutamine and lysine. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at