rs28365109

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001037.5(SCN1B):c.591-14C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0139 in 1,614,010 control chromosomes in the GnomAD database, including 197 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). The gene SCN1B is included in the ClinGen Criteria Specification Registry.

Frequency

Genomes: 𝑓 0.0095 ( 15 hom., cov: 32)

Exomes 𝑓: 0.014 ( 182 hom. )

Consequence

SCN1B
NM_001037.5 intron

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:11

Conservation

PhyloP100: -0.00600

Publications

7 publications found

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]

SCN1B links:

HPN-AS1 (HGNC:47041): (HPN antisense RNA 1)

HPN-AS1 links:

Genome browser will be placed here

ACMG classification

Specifications for SCN1B are available in the ClinGen Criteria Specification Registry and recommended for reference when assigning criteria.

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.7).

BP6

Variant 19-35039621-C-A is Benign according to our data. Variant chr19-35039621-C-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 257220.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.00951 (1448/152300) while in subpopulation SAS AF = 0.0191 (92/4824). AF 95% confidence interval is 0.0159. There are 15 homozygotes in GnomAd4. There are 658 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 15 AD,AR,Unknown gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001037.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SCN1B	NM_001037.5	MANE Select	c.591-14C>A		intron	N/A	NP_001028.1	Q07699-1
	SCN1B	NM_001321605.2		c.492-14C>A		intron	N/A	NP_001308534.1	A0A1W2PR05

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
SCN1B	ENST00000262631.11	TSL:1 MANE Select	c.591-14C>A	intron	N/A	ENSP00000262631.3	Q07699-1
SCN1B	ENST00000638536.1	TSL:1	c.591-14C>A	intron	N/A	ENSP00000492022.1	Q07699-1
SCN1B	ENST00000675741.1		c.618-14C>A	intron	N/A	ENSP00000502395.1	A0A6Q8PGS1

Frequencies

GnomAD3 genomes

AF:

0.00950

AC:

1445

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00319

Gnomad AMI

AF:

0.0132

Gnomad AMR

AF:

0.00582

Gnomad ASJ

AF:

0.0187

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.0186

Gnomad FIN

AF:

0.00235

Gnomad MID

AF:

0.00949

Gnomad NFE

AF:

0.0149

Gnomad OTH

AF:

0.00718

GnomAD2 exomes

AF:

0.0112

AC:

2822

AN:

251362

AF XY:

0.0123

show subpopulations

Gnomad AFR exome

AF:

0.00357

Gnomad AMR exome

AF:

0.00526

Gnomad ASJ exome

AF:

0.0187

Gnomad EAS exome

AF:

0.0000544

Gnomad FIN exome

AF:

0.00259

Gnomad NFE exome

AF:

0.0145

Gnomad OTH exome

AF:

0.0130

GnomAD4 exome

AF:

0.0144

AC:

21009

AN:

1461710

Hom.:

182

Cov.:

AF XY:

0.0147

AC XY:

10662

AN XY:

727168

show subpopulations

African (AFR)

AF:

0.00278

AC:

AN:

33480

American (AMR)

AF:

0.00566

AC:

253

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.0164

AC:

428

AN:

26134

East Asian (EAS)

AF:

0.0000504

AC:

AN:

39700

South Asian (SAS)

AF:

0.0190

AC:

1640

AN:

86258

European-Finnish (FIN)

AF:

0.00279

AC:

149

AN:

53416

Middle Eastern (MID)

AF:

0.0142

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0159

AC:

17625

AN:

1111842

Other (OTH)

AF:

0.0122

AC:

737

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.452

Heterozygous variant carriers

1137

2274

3411

4548

5685

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

670

1340

2010

2680

3350

<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:

0.00951

AC:

1448

AN:

152300

Hom.:

Cov.:

AF XY:

0.00884

AC XY:

658

AN XY:

74468

show subpopulations

African (AFR)

AF:

0.00318

AC:

132

AN:

41560

American (AMR)

AF:

0.00582

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.0187

AC:

AN:

3472

East Asian (EAS)

AF:

0.000193

AC:

AN:

5182

South Asian (SAS)

AF:

0.0191

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00235

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.0102

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0149

AC:

1014

AN:

68016

Other (OTH)

AF:

0.00710

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.501

Heterozygous variant carriers

159

238

318

397

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

100

<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:

0.0126

Hom.:

Bravo

AF:

0.00884

Asia WGS

AF:

0.00462

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (4)

not provided (3)

Brugada syndrome 5 (2)

Generalized epilepsy with febrile seizures plus, type 1 (1)

Generalized epilepsy with febrile seizures plus, type 1;C2748541:Brugada syndrome 5;C3809311:Atrial fibrillation, familial, 13;C4479236:Developmental and epileptic encephalopathy, 52 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.70

CADD

Benign

(source)

DANN

Benign

0.88

PhyloP100

-0.0060

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over