rs761183228

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_174934.4(SCN4B):​c.613T>C​(p.Ser205Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000254 in 1,613,510 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S205T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

SCN4B
NM_174934.4 missense

Scores

6
11
1

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 8.14

Publications

2 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: AD, Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine
  • long QT syndrome
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BS2
High AC in GnomAdExome4 at 38 Unknown,AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_174934.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SCN4B
NM_174934.4
MANE Select
c.613T>Cp.Ser205Pro
missense
Exon 5 of 5NP_777594.1Q8IWT1-1
SCN4B
NM_001142349.2
c.283T>Cp.Ser95Pro
missense
Exon 4 of 4NP_001135821.1Q8IWT1-2
SCN4B
NM_001142348.2
c.211T>Cp.Ser71Pro
missense
Exon 3 of 3NP_001135820.1Q8IWT1-3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SCN4B
ENST00000324727.9
TSL:1 MANE Select
c.613T>Cp.Ser205Pro
missense
Exon 5 of 5ENSP00000322460.4Q8IWT1-1
SCN4B
ENST00000415030.6
TSL:1
n.756T>C
non_coding_transcript_exon
Exon 4 of 4
SCN4B
ENST00000531550.1
TSL:1
n.678T>C
non_coding_transcript_exon
Exon 2 of 2

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152074
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000358
AC:
9
AN:
251400
AF XY:
0.0000221
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000868
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000440
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000260
AC:
38
AN:
1461436
Hom.:
0
Cov.:
31
AF XY:
0.0000344
AC XY:
25
AN XY:
727046
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33472
American (AMR)
AF:
0.0000671
AC:
3
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86248
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53416
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000243
AC:
27
AN:
1111600
Other (OTH)
AF:
0.000133
AC:
8
AN:
60376
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.480
Heterozygous variant carriers
0
2
4
7
9
11
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:
0.0000197
AC:
3
AN:
152074
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74266
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41394
American (AMR)
AF:
0.00
AC:
0
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5164
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10594
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68026
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.00
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.0000330
AC:
4
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
Long QT syndrome 10 (2)
-
1
-
Cardiovascular phenotype (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.77
BayesDel_addAF
Uncertain
0.14
D
BayesDel_noAF
Pathogenic
0.16
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.54
D
Eigen
Uncertain
0.43
Eigen_PC
Uncertain
0.39
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.84
T
M_CAP
Pathogenic
0.53
D
MetaRNN
Uncertain
0.58
D
MetaSVM
Pathogenic
0.97
D
MutationAssessor
Uncertain
2.2
M
PhyloP100
8.1
PrimateAI
Uncertain
0.75
T
PROVEAN
Uncertain
-2.9
D
REVEL
Pathogenic
0.68
Sift
Uncertain
0.0030
D
Sift4G
Uncertain
0.0060
D
Polyphen
1.0
D
Vest4
0.52
MutPred
0.18
Loss of catalytic residue at S205 (P = 0.0236)
MVP
0.88
MPC
0.70
ClinPred
0.80
D
GERP RS
4.5
Varity_R
0.48
gMVP
0.43
Mutation Taster
=22/78
disease causing

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: rs761183228; hg19: chr11-118007816; API