NM_172201.2(KCNE2):c.243T>A (p.Asn81Lys) AND Cardiovascular phenotype

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Jun 12, 2023
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:: RCV003308301.4

Allele description [Variation Report for NM_172201.2(KCNE2):c.243T>A (p.Asn81Lys)]

NM_172201.2(KCNE2):c.243T>A (p.Asn81Lys)

Genes:

KCNE2:potassium voltage-gated channel subfamily E regulatory subunit 2 [Gene - OMIM - HGNC]
LOC105372791:uncharacterized LOC105372791 [Gene]

Variant type:

single nucleotide variant

Cytogenetic location:

21q22.11

Genomic location:

Preferred name:

NM_172201.2(KCNE2):c.243T>A (p.Asn81Lys)

HGVS:

NC_000021.9:g.34370721T>A
NG_008804.1:g.11698T>A
NM_172201.2:c.243T>AMANE SELECT
NP_751951.1:p.Asn81Lys
NP_751951.1:p.Asn81Lys
LRG_291t1:c.243T>A
LRG_291:g.11698T>A
LRG_291p1:p.Asn81Lys
NC_000021.8:g.35743020T>A
NM_172201.1:c.243T>A

Protein change:

N81K

Molecular consequence:

NM_172201.2:c.243T>A - 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
SCV004000354	Ambry Genetics	criteria provided, single submitter (Ambry Variant Classification Scheme 2023)	Uncertain significance (Jun 12, 2023)	germline	clinical testing	Citation Link

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV004000354

Ambry Genetics

criteria provided, single submitter

(Ambry Variant Classification Scheme 2023)

Uncertain significance
(Jun 12, 2023)

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, SCV004000354.2

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

Description

The p.N81K variant (also known as c.243T>A), located in coding exon 1 of the KCNE2 gene, results from a T to A substitution at nucleotide position 243. The asparagine at codon 81 is replaced by lysine, 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. 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: Sep 29, 2024

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