rs986180682

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 0P and 11B. BP4_StrongBP6_ModerateBP7BS2

The NM_199037.5(SCN1B):​c.756C>A​(p.Val252Val) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000664 in 1,550,750 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000073 ( 0 hom. )

Consequence

SCN1B
NM_199037.5 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.334
Variant links:
Genes affected
SCN1B (HGNC:10586): (sodium voltage-gated channel beta subunit 1) Voltage-gated sodium channels are heteromeric proteins that function in the generation and propagation of action potentials in muscle and neuronal cells. They are composed of one alpha and two beta subunits, where the alpha subunit provides channel activity and the beta-1 subunit modulates the kinetics of channel inactivation. This gene encodes a sodium channel beta-1 subunit. Mutations in this gene result in generalized epilepsy with febrile seizures plus, Brugada syndrome 5, and defects in cardiac conduction. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Oct 2009]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -11 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.8).
BP6
Variant 19-35034047-C-A is Benign according to our data. Variant chr19-35034047-C-A is described in ClinVar as [Likely_benign]. Clinvar id is 537734.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=-0.334 with no splicing effect.
BS2
High AC in GnomAdExome4 at 102 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SCN1BNM_001037.5 linkuse as main transcriptc.448+308C>A intron_variant ENST00000262631.11 NP_001028.1 Q07699-1
SCN1BNM_199037.5 linkuse as main transcriptc.756C>A p.Val252Val synonymous_variant 3/3 NP_950238.1 Q07699-2
SCN1BNM_001321605.2 linkuse as main transcriptc.349+308C>A intron_variant NP_001308534.1 Q07699A0A1W2PR05

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SCN1BENST00000262631.11 linkuse as main transcriptc.448+308C>A intron_variant 1 NM_001037.5 ENSP00000262631.3 Q07699-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152136
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000194
AC:
3
AN:
154780
Hom.:
0
AF XY:
0.0000122
AC XY:
1
AN XY:
81788
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000498
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000729
AC:
102
AN:
1398614
Hom.:
0
Cov.:
31
AF XY:
0.0000696
AC XY:
48
AN XY:
689880
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000203
Gnomad4 NFE exome
AF:
0.0000918
Gnomad4 OTH exome
AF:
0.0000345
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152136
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74304
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000564
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Brugada syndrome 5 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpAug 10, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.80
CADD
Benign
1.3
DANN
Benign
0.61

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs986180682; hg19: chr19-35524951; API