rs2195144
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Variant summary
Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBA1
The NM_001165963.4(SCN1A):c.603-298A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.715 in 612,058 control chromosomes in the GnomAD database, including 158,501 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.
Frequency
Genomes: 𝑓 0.74 ( 41715 hom., cov: 31)
Exomes 𝑓: 0.71 ( 116786 hom. )
Consequence
SCN1A
NM_001165963.4 intron
NM_001165963.4 intron
Scores
2
Clinical Significance
Not reported in ClinVar
Conservation
PhyloP100: -0.400
Genes affected
SCN1A (HGNC:10585): (sodium voltage-gated channel alpha subunit 1) Voltage-dependent sodium channels are heteromeric complexes that regulate sodium exchange between intracellular and extracellular spaces and are essential for the generation and propagation of action potentials in muscle cells and neurons. Each sodium channel is composed of a large pore-forming, glycosylated alpha subunit and two smaller beta subunits. This gene encodes a sodium channel alpha subunit, which has four homologous domains, each of which contains six transmembrane regions. Allelic variants of this gene are associated with generalized epilepsy with febrile seizures and epileptic encephalopathy. Alternative splicing results in multiple transcript variants. The RefSeq Project has decided to create four representative RefSeq records. Three of the transcript variants are supported by experimental evidence and the fourth contains alternate 5' untranslated exons, the exact combination of which have not been experimentally confirmed for the full-length transcript. [provided by RefSeq, Oct 2015]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -12 ACMG points.
BP4
?
Computational evidence support a benign effect (BayesDel_noAF=-0.9).
BA1
?
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.869 is higher than 0.05.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
SCN1A | NM_001165963.4 | c.603-298A>G | intron_variant | ENST00000674923.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
SCN1A | ENST00000674923.1 | c.603-298A>G | intron_variant | NM_001165963.4 | P4 | ||||
SCN1A-AS1 | ENST00000651574.1 | n.487+17111T>C | intron_variant, non_coding_transcript_variant |
Frequencies
GnomAD3 genomes ? AF: 0.738 AC: 111892AN: 151684Hom.: 41670 Cov.: 31
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GnomAD4 exome AF: 0.708 AC: 325926AN: 460256Hom.: 116786 AF XY: 0.704 AC XY: 171925AN XY: 244362
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GnomAD4 genome ? AF: 0.738 AC: 111999AN: 151802Hom.: 41715 Cov.: 31 AF XY: 0.741 AC XY: 54984AN XY: 74190
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ClinVar
Not reported inComputational scores
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Name
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BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
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