NM_001330260.2(SCN8A):c.5642T>C (p.Val1881Ala) AND Inborn genetic diseases

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Dec 17, 2017
Review status:: 1 star out of maximum of 4 stars
criteria provided, single submitter

Somatic classification of clinical impact:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Somatic classification of oncogenicity:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Record status:: current
Accession:: RCV002345134.2

Allele description [Variation Report for NM_001330260.2(SCN8A):c.5642T>C (p.Val1881Ala)]

NM_001330260.2(SCN8A):c.5642T>C (p.Val1881Ala)

Gene:

SCN8A:sodium voltage-gated channel alpha subunit 8 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

12q13.13

Genomic location:

Preferred name:

NM_001330260.2(SCN8A):c.5642T>C (p.Val1881Ala)

HGVS:

NC_000012.12:g.51807128T>C
NG_021180.3:g.222171T>C
NM_001177984.3:c.5519T>C
NM_001330260.2:c.5642T>CMANE SELECT
NM_001369788.1:c.5519T>C
NM_014191.4:c.5642T>C
NP_001171455.1:p.Val1840Ala
NP_001317189.1:p.Val1881Ala
NP_001356717.1:p.Val1840Ala
NP_055006.1:p.Val1881Ala
LRG_1389t1:c.5642T>C
LRG_1389t2:c.5642T>C
LRG_1389:g.222171T>C
LRG_1389p1:p.Val1881Ala
LRG_1389p2:p.Val1881Ala
NC_000012.11:g.52200912T>C
NM_014191.2:c.5642T>C

Protein change:

V1840A

Molecular consequence:

NM_001177984.3:c.5519T>C - missense variant - [Sequence Ontology: SO:0001583]
NM_001330260.2:c.5642T>C - missense variant - [Sequence Ontology: SO:0001583]
NM_001369788.1:c.5519T>C - missense variant - [Sequence Ontology: SO:0001583]
NM_014191.4:c.5642T>C - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Inborn genetic diseases
Identifiers:: MeSH: D030342; MedGen: C0950123

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV002652018	Ambry Genetics	criteria provided, single submitter (Ambry Variant Classification Scheme 2023)	Uncertain significance (Dec 17, 2017)	germline	clinical testing	Citation Link

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV002652018

Ambry Genetics

criteria provided, single submitter

(Ambry Variant Classification Scheme 2023)

Uncertain significance
(Dec 17, 2017)

germline

clinical testing

Citation Link

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Details of each submission

From Ambry Genetics, SCV002652018.2

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	not provided

Description

The p.V1881A variant (also known as c.5642T>C), located in coding exon 26 of the SCN8A gene, results from a T to C substitution at nucleotide position 5642. The valine at codon 1881 is replaced by alanine, an amino acid with similar properties. This amino acid position is well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: May 1, 2024

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