rs1027861663

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The ENST00000415950.5(SCN1B):ā€‹c.747A>Gā€‹(p.Gln249=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000452 in 1,549,986 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 (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.000040 ( 0 hom., cov: 32)
Exomes š‘“: 0.000046 ( 0 hom. )

Consequence

SCN1B
ENST00000415950.5 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -0.0360
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 -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.96).
BP6
Variant 19-35034038-A-G is Benign according to our data. Variant chr19-35034038-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 470185.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-35034038-A-G is described in Lovd as [Benign]. Variant chr19-35034038-A-G is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=-0.036 with no splicing effect.
BS2
High AC in GnomAd4 at 6 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SCN1BNM_001037.5 linkuse as main transcriptc.448+299A>G intron_variant ENST00000262631.11 NP_001028.1
SCN1BNM_199037.5 linkuse as main transcriptc.747A>G p.Gln249= synonymous_variant 3/3 NP_950238.1
SCN1BNM_001321605.2 linkuse as main transcriptc.349+299A>G intron_variant NP_001308534.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SCN1BENST00000262631.11 linkuse as main transcriptc.448+299A>G intron_variant 1 NM_001037.5 ENSP00000262631 P1Q07699-1

Frequencies

GnomAD3 genomes
AF:
0.0000395
AC:
6
AN:
151782
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000197
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:
0.0000442
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000387
AC:
6
AN:
154918
Hom.:
0
AF XY:
0.0000611
AC XY:
5
AN XY:
81852
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000810
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:
0.0000663
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000458
AC:
64
AN:
1398204
Hom.:
0
Cov.:
31
AF XY:
0.0000464
AC XY:
32
AN XY:
689702
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000560
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000575
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000395
AC:
6
AN:
151782
Hom.:
0
Cov.:
32
AF XY:
0.0000270
AC XY:
2
AN XY:
74098
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000197
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000442
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000154
Hom.:
0
Bravo
AF:
0.0000718

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxJan 28, 2016- -
Likely benign, no assertion criteria providedclinical testingJoint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+-- -
not specified Benign:1
Benign, no assertion criteria providedclinical testingClinical Genetics, Academic Medical Center-- -
Brugada syndrome 5 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJul 07, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.96
CADD
Benign
6.4
DANN
Benign
0.51

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: rs1027861663; hg19: chr19-35524942; API