11-118166913-C-T
Variant summary
Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4
The NM_004588.5(SCN2B):c.622G>A(p.Gly208Ser) 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. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_004588.5 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 1 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
SCN2B | ENST00000278947.6 | c.622G>A | p.Gly208Ser | missense_variant | Exon 4 of 4 | 1 | NM_004588.5 | ENSP00000278947.5 | ||
SCN2B | ENST00000658882.1 | n.*447G>A | non_coding_transcript_exon_variant | Exon 5 of 5 | ENSP00000499572.1 | |||||
SCN2B | ENST00000669850.1 | n.864G>A | non_coding_transcript_exon_variant | Exon 4 of 4 | ||||||
SCN2B | ENST00000658882.1 | n.*447G>A | 3_prime_UTR_variant | Exon 5 of 5 | ENSP00000499572.1 |
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD4 exome Cov.: 31
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
Atrial fibrillation, familial, 14 Uncertain:1
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. An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. ClinVar contains an entry for this variant (Variation ID: 1378025). This variant has not been reported in the literature in individuals affected with SCN2B-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces glycine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 208 of the SCN2B protein (p.Gly208Ser). -
Cardiovascular phenotype Uncertain:1
The p.G208S variant (also known as c.622G>A), located in coding exon 4 of the SCN2B gene, results from a G to A substitution at nucleotide position 622. The glycine at codon 208 is replaced by serine, an amino acid with similar properties. This amino acid position is conserved. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at