rs368811155

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2

The NM_000334.4(SCN4A):​c.1902C>T​(p.Pro634Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000252 in 1,613,846 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00026 ( 2 hom. )

Consequence

SCN4A
NM_000334.4 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 0.528
Variant links:
Genes affected
SCN4A (HGNC:10591): (sodium voltage-gated channel alpha subunit 4) Voltage-gated sodium channels are transmembrane glycoprotein complexes composed of a large alpha subunit with 24 transmembrane domains and one or more regulatory beta subunits. They are responsible for the generation and propagation of action potentials in neurons and muscle. This gene encodes one member of the sodium channel alpha subunit gene family. It is expressed in skeletal muscle, and mutations in this gene have been linked to several myotonia and periodic paralysis disorders. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.4).
BP6
Variant 17-63959382-G-A is Benign according to our data. Variant chr17-63959382-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 586505.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1, Benign=1}.
BS2
High Homozygotes in GnomAdExome4 at 2 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SCN4ANM_000334.4 linkuse as main transcriptc.1902C>T p.Pro634Pro synonymous_variant 12/24 ENST00000435607.3 NP_000325.4 P35499

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SCN4AENST00000435607.3 linkuse as main transcriptc.1902C>T p.Pro634Pro synonymous_variant 12/241 NM_000334.4 ENSP00000396320.1 P35499
SCN4AENST00000581514.1 linkuse as main transcriptn.558C>T non_coding_transcript_exon_variant 2/23

Frequencies

GnomAD3 genomes
AF:
0.000177
AC:
27
AN:
152184
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.000353
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000108
AC:
27
AN:
249070
Hom.:
0
AF XY:
0.000118
AC XY:
16
AN XY:
135130
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000290
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:
0.000213
Gnomad OTH exome
AF:
0.000331
GnomAD4 exome
AF:
0.000259
AC:
379
AN:
1461662
Hom.:
2
Cov.:
32
AF XY:
0.000250
AC XY:
182
AN XY:
727116
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000224
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:
0.000315
Gnomad4 OTH exome
AF:
0.000447
GnomAD4 genome
AF:
0.000177
AC:
27
AN:
152184
Hom.:
0
Cov.:
32
AF XY:
0.000134
AC XY:
10
AN XY:
74356
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000353
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.000196
Hom.:
0
Bravo
AF:
0.000159
EpiCase
AF:
0.000273
EpiControl
AF:
0.000119

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:1
Benign, criteria provided, single submitterclinical testingAthena DiagnosticsMar 08, 2018- -
Uncertain significance, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenApr 01, 2018- -
Familial hyperkalemic periodic paralysis Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpNov 27, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.40
CADD
Benign
12
DANN
Benign
0.69

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs368811155; hg19: chr17-62036742; COSMIC: COSV71127357; API