rs72544155

Variant names:

Variant summary

Our verdict is Benign. The variant received -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_174934.4(SCN4B):c.639C>T(p.Asn213Asn) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00483 in 1,613,988 control chromosomes in the GnomAD database, including 20 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0032 ( 1 hom., cov: 32)

Exomes 𝑓: 0.0050 ( 19 hom. )

Consequence

SCN4B
NM_174934.4 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: -1.30

Publications

3 publications found

Variant links:

Genes affected

SCN4B (HGNC:10592): (sodium voltage-gated channel beta subunit 4) The protein encoded by this gene is one of several sodium channel beta subunits. These subunits interact with voltage-gated alpha subunits to change sodium channel kinetics. The encoded transmembrane protein forms interchain disulfide bonds with SCN2A. Defects in this gene are a cause of long QT syndrome type 10 (LQT10). Three protein-coding and one non-coding transcript variant have been found for this gene.[provided by RefSeq, Mar 2009]

SCN4B Gene-Disease associations (from GenCC):

familial atrial fibrillation
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
long QT syndrome 10
Inheritance: Unknown, AD Classification: LIMITED Submitted by: Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae)
long QT syndrome
Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

SCN4B links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -17 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.5).

BP6

Variant 11-118137075-G-A is Benign according to our data. Variant chr11-118137075-G-A is described in ClinVar as Benign. ClinVar VariationId is 139036.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-1.3 with no splicing effect.

BS2

High AC in GnomAd4 at 493 Unknown,AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SCN4B	NM_174934.4 link	c.639C>T	p.Asn213Asn	synonymous_variant	Exon 5 of 5	ENST00000324727.9	NP_777594.1	Q8IWT1-1B0YJ93
SCN4B	NM_001142349.2 link	c.309C>T	p.Asn103Asn	synonymous_variant	Exon 4 of 4		NP_001135821.1	Q8IWT1-2
SCN4B	NM_001142348.2 link	c.237C>T	p.Asn79Asn	synonymous_variant	Exon 3 of 3		NP_001135820.1	Q8IWT1-3
SCN4B	NR_024527.2 link	n.628C>T		non_coding_transcript_exon_variant	Exon 4 of 4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SCN4B	ENST00000324727.9 link	c.639C>T	p.Asn213Asn	synonymous_variant	Exon 5 of 5	1	NM_174934.4	ENSP00000322460.4		Q8IWT1-1

Frequencies

GnomAD3 genomes

AF:

0.00323

AC:

491

AN:

152188

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00109

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00229

Gnomad ASJ

AF:

0.00202

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.000282

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00582

Gnomad OTH

AF:

0.00191

GnomAD2 exomes

AF:

0.00283

AC:

712

AN:

251438

AF XY:

0.00289

show subpopulations

Gnomad AFR exome

AF:

0.000554

Gnomad AMR exome

AF:

0.00116

Gnomad ASJ exome

AF:

0.00109

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000601

Gnomad NFE exome

AF:

0.00540

Gnomad OTH exome

AF:

0.00309

GnomAD4 exome

AF:

0.00500

AC:

7310

AN:

1461682

Hom.:

Cov.:

AF XY:

0.00481

AC XY:

3497

AN XY:

727152

show subpopulations

African (AFR)

AF:

0.000597

AC:

AN:

33476

American (AMR)

AF:

0.00150

AC:

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.00115

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.000371

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.000842

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00191

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00623

AC:

6928

AN:

1111820

Other (OTH)

AF:

0.00293

AC:

177

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.454

Heterozygous variant carriers

364

728

1093

1457

1821

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

254

508

762

1016

1270

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00324

AC:

493

AN:

152306

Hom.:

Cov.:

AF XY:

0.00293

AC XY:

218

AN XY:

74478

show subpopulations

African (AFR)

AF:

0.00113

AC:

AN:

41560

American (AMR)

AF:

0.00229

AC:

AN:

15302

Ashkenazi Jewish (ASJ)

AF:

0.00202

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5174

South Asian (SAS)

AF:

0.000207

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.000282

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00582

AC:

396

AN:

68030

Other (OTH)

AF:

0.00189

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.499

Heterozygous variant carriers

102

128

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00425

Hom.:

Bravo

AF:

0.00339

EpiCase

AF:

0.00529

EpiControl

AF:

0.00522

ClinVar

Significance: Benign

Submissions summary: Benign:8

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:4

Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Jul 10, 2011

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Genome Diagnostics Laboratory, University Medical Center Utrecht

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Clinical Genetics, Academic Medical Center

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Long QT syndrome 10

Benign:2

Jul 27, 2021

Fulgent Genetics, Fulgent Genetics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Feb 02, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:1

Oct 21, 2021

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Cardiovascular phenotype

Benign:1

Aug 16, 2016

Ambry Genetics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.50

CADD

Benign

0.21

(source)

DANN

Benign

0.64

PhyloP100

-1.3

Mutation Taster

=100/0

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over