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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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Assertion and evidence details

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Submission AccessionSubmitterReview Status
(Assertion method)		Clinical Significance
(Last evaluated)		OriginMethodCitations
SCV004000354Ambry Genetics
criteria provided, single submitter

(Ambry Variant Classification Scheme 2023)		Uncertain significance
(Jun 12, 2023) 		germlineclinical testing

Citation Link

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Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlineunknownnot providednot providednot providednot providednot providedclinical testing

Details of each submission

From Ambry Genetics, SCV004000354.2

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testingnot 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.

#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlineunknownnot providednot providednot providednot providednot providednot providednot provided

Last Updated: Sep 29, 2024