rs369032304

Variant summary

Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS1

The ENST00000415950.5(SCN1B):​c.785G>A​(p.Cys262Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000271 in 1,551,628 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. C262F) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

SCN1B
ENST00000415950.5 missense

Scores

1
1
14

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.0200

Publications

4 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]
HPN-AS1 (HGNC:47041): (HPN antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -16 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.021225154).
BP6
Variant 19-35034076-G-A is Benign according to our data. Variant chr19-35034076-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 503742.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.0000788 (12/152336) while in subpopulation EAS AF = 0.00213 (11/5176). AF 95% confidence interval is 0.00119. There are 0 homozygotes in GnomAd4. There are 5 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SCN1BNM_001037.5 linkc.448+337G>A intron_variant Intron 3 of 5 ENST00000262631.11 NP_001028.1 Q07699-1
SCN1BNM_199037.5 linkc.785G>A p.Cys262Tyr missense_variant Exon 3 of 3 NP_950238.1 Q07699-2
SCN1BNM_001321605.2 linkc.349+337G>A intron_variant Intron 3 of 5 NP_001308534.1 Q07699A0A1W2PR05

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SCN1BENST00000262631.11 linkc.448+337G>A intron_variant Intron 3 of 5 1 NM_001037.5 ENSP00000262631.3 Q07699-1

Frequencies

GnomAD3 genomes
AF:
0.0000788
AC:
12
AN:
152218
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00212
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000143
AC:
22
AN:
154118
AF XY:
0.000110
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00193
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000230
GnomAD4 exome
AF:
0.0000214
AC:
30
AN:
1399292
Hom.:
0
Cov.:
32
AF XY:
0.0000188
AC XY:
13
AN XY:
690180
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31596
American (AMR)
AF:
0.00
AC:
0
AN:
35704
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25180
East Asian (EAS)
AF:
0.000700
AC:
25
AN:
35738
South Asian (SAS)
AF:
0.00
AC:
0
AN:
79236
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49280
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5698
European-Non Finnish (NFE)
AF:
9.27e-7
AC:
1
AN:
1078864
Other (OTH)
AF:
0.0000690
AC:
4
AN:
57996
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.518
Heterozygous variant carriers
0
3
6
8
11
14
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000788
AC:
12
AN:
152336
Hom.:
0
Cov.:
32
AF XY:
0.0000671
AC XY:
5
AN XY:
74488
show subpopulations
African (AFR)
AF:
0.0000240
AC:
1
AN:
41584
American (AMR)
AF:
0.00
AC:
0
AN:
15308
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00213
AC:
11
AN:
5176
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68024
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.463
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000364
Hom.:
0
Bravo
AF:
0.0000756
ESP6500AA
AF:
0.000422
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000307
AC:
1
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Brugada syndrome 5 Benign:1
Nov 18, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
Dec 16, 2020
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Benign
-0.41
T
BayesDel_noAF
Benign
-0.36
CADD
Benign
3.7
DANN
Benign
0.87
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.022
N
LIST_S2
Benign
0.28
T;T
M_CAP
Uncertain
0.15
D
MetaRNN
Benign
0.021
T;T
MetaSVM
Benign
-0.54
T
PhyloP100
0.020
PrimateAI
Benign
0.35
T
PROVEAN
Benign
-0.53
N;.
REVEL
Benign
0.086
Sift
Pathogenic
0.0
D;.
Polyphen
0.24
B;.
Vest4
0.11
MVP
0.31
MPC
1.8
ClinPred
0.053
T
GERP RS
-0.38
gMVP
0.49
Mutation Taster
=96/4
polymorphism

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

Other links and lift over

dbSNP: rs369032304; hg19: chr19-35524980; API