NM_001037.5(SCN1B):c.190A>G (p.Thr64Ala) AND Cardiovascular phenotype

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Sep 11, 2024
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:: RCV004988889.1

Allele description [Variation Report for NM_001037.5(SCN1B):c.190A>G (p.Thr64Ala)]

NM_001037.5(SCN1B):c.190A>G (p.Thr64Ala)

Gene:

SCN1B:sodium voltage-gated channel beta subunit 1 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

19q13.11

Genomic location:

Preferred name:

NM_001037.5(SCN1B):c.190A>G (p.Thr64Ala)

HGVS:

NC_000019.10:g.35032677A>G
NG_013359.1:g.6990A>G
NM_001037.4:c.190A>G
NM_001037.5:c.190A>GMANE SELECT
NM_001321605.2:c.91A>G
NM_199037.5:c.190A>G
NP_001028.1:p.Thr64Ala
NP_001308534.1:p.Thr31Ala
NP_950238.1:p.Thr64Ala
LRG_420t1:c.190A>G
LRG_420:g.6990A>G
LRG_420p1:p.Thr64Ala
NC_000019.9:g.35523581A>G

Protein change:

T31A

Links:

dbSNP: rs2151746044

NCBI 1000 Genomes Browser:

rs2151746044

Molecular consequence:

NM_001037.5:c.190A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_001321605.2:c.91A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_199037.5:c.190A>G - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Cardiovascular phenotype
Identifiers:: MedGen: CN230736

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV005500018	Ambry Genetics	criteria provided, single submitter (Ambry Variant Classification Scheme 2023)	Uncertain significance (Sep 11, 2024)	germline	clinical testing	Citation Link

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV005500018

Ambry Genetics

criteria provided, single submitter

(Ambry Variant Classification Scheme 2023)

Uncertain significance
(Sep 11, 2024)

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, SCV005500018.1

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

Description

The p.T64A variant (also known as c.190A>G), located in coding exon 2 of the SCN1B gene, results from an A to G substitution at nucleotide position 190. The threonine at codon 64 is replaced by alanine, an amino acid with similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Based on the available evidence, the clinical significance of this variant 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: Feb 16, 2025

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