NM_000238.4(KCNH2):c.1956T>C (p.Tyr652=) AND not specified

Germline classification:: Benign (9 submissions)
Last evaluated:: May 31, 2020
Review status:: 2 stars out of maximum of 4 stars
criteria provided, multiple submitters, no conflicts

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:: RCV000181727.29

Allele description [Variation Report for NM_000238.4(KCNH2):c.1956T>C (p.Tyr652=)]

NM_000238.4(KCNH2):c.1956T>C (p.Tyr652=)

Gene:

KCNH2:potassium voltage-gated channel subfamily H member 2 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

7q36.1

Genomic location:

Preferred name:

NM_000238.4(KCNH2):c.1956T>C (p.Tyr652=)

Other names:

p.Y652Y:TAT>TAC

HGVS:

NC_000007.14:g.150951110A>G
NG_008916.1:g.31817T>C
NM_000238.4:c.1956T>CMANE SELECT
NM_001204798.2:c.936T>C
NM_001406753.1:c.1668T>C
NM_001406755.1:c.1779T>C
NM_001406756.1:c.1668T>C
NM_001406757.1:c.1656T>C
NM_172056.3:c.1956T>C
NM_172057.3:c.936T>C
NP_000229.1:p.Tyr652=
NP_000229.1:p.Tyr652=
NP_001191727.1:p.Tyr312=
NP_001393682.1:p.Tyr556=
NP_001393684.1:p.Tyr593=
NP_001393685.1:p.Tyr556=
NP_001393686.1:p.Tyr552=
NP_742053.1:p.Tyr652=
NP_742053.1:p.Tyr652=
NP_742054.1:p.Tyr312=
NP_742054.1:p.Tyr312=
LRG_288t1:c.1956T>C
LRG_288t2:c.1956T>C
LRG_288t3:c.936T>C
LRG_288:g.31817T>C
LRG_288p1:p.Tyr652=
LRG_288p2:p.Tyr652=
LRG_288p3:p.Tyr312=
NC_000007.13:g.150648198A>G
NM_000238.2:c.1956T>C
NM_000238.3:c.1956T>C
NM_000238.4:c.1956T>C
NM_172056.2:c.1956T>C
NM_172057.2:c.936T>C
NR_176254.1:n.2364T>C
NR_176255.1:n.1237T>C
p.Tyr652Tyr

Links:

dbSNP: rs1137617

NCBI 1000 Genomes Browser:

rs1137617

Molecular consequence:

NR_176254.1:n.2364T>C - non-coding transcript variant - [Sequence Ontology: SO:0001619]
NR_176255.1:n.1237T>C - non-coding transcript variant - [Sequence Ontology: SO:0001619]
NM_000238.4:c.1956T>C - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001204798.2:c.936T>C - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001406753.1:c.1668T>C - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001406755.1:c.1779T>C - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001406756.1:c.1668T>C - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001406757.1:c.1656T>C - synonymous variant - [Sequence Ontology: SO:0001819]
NM_172056.3:c.1956T>C - synonymous variant - [Sequence Ontology: SO:0001819]
NM_172057.3:c.936T>C - synonymous variant - [Sequence Ontology: SO:0001819]

Observations:

Condition(s)

Synonyms:: AllHighlyPenetrant
Identifiers:: MedGen: CN169374

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000234030	GeneDx	criteria provided, single submitter (GeneDx Variant Classification (06012015))	Benign (Apr 12, 2012)	germline	clinical testing	Citation Link,
SCV000303113	PreventionGenetics, part of Exact Sciences	criteria provided, single submitter (ACMG Guidelines, 2015)	Benign	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV000539427	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	criteria provided, single submitter (LMM Criteria)	Benign (Mar 5, 2019)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV001433181	Molecular Diagnostic Laboratory for Inherited Cardiovascular Disease, Montreal Heart Institute	criteria provided, single submitter (ACMG Guidelines, 2015)	Benign (May 31, 2020)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV001740720	Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen - VKGL Data-share Consensus	no assertion criteria provided	Benign	germline	clinical testing
SCV001917029	Clinical Genetics, Academic Medical Center - VKGL Data-share Consensus See additional submitters Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen	no assertion criteria provided	Benign	germline	clinical testing
SCV001932339	Genome Diagnostics Laboratory, University Medical Center Utrecht - VKGL Data-share Consensus See additional submitters Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen	no assertion criteria provided	Benign	germline	clinical testing
SCV001953027	Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+ - VKGL Data-share Consensus See additional submitters Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen	no assertion criteria provided	Benign	germline	clinical testing
SCV001971879	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center - VKGL Data-share Consensus See additional submitters Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen	no assertion criteria provided	Benign	germline	clinical testing

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	yes	not provided	not provided	not provided	not provided	not provided	clinical testing
not provided	germline	unknown	1	1	not provided	not provided	not provided	clinical testing

Citations

PubMed

A systematic approach to assessing the clinical significance of genetic variants.

Duzkale H, Shen J, McLaughlin H, Alfares A, Kelly MA, Pugh TJ, Funke BH, Rehm HL, Lebo MS.

Clin Genet. 2013 Nov;84(5):453-63. doi: 10.1111/cge.12257.

PubMed [citation]

PMID:: 24033266
PMCID:: PMC3995020

Standards and guidelines for the interpretation of sequence variants: a joint consensus recommendation of the American College of Medical Genetics and Genomics and the Association for Molecular Pathology.

Richards S, Aziz N, Bale S, Bick D, Das S, Gastier-Foster J, Grody WW, Hegde M, Lyon E, Spector E, Voelkerding K, Rehm HL; ACMG Laboratory Quality Assurance Committee..

Genet Med. 2015 May;17(5):405-24. doi: 10.1038/gim.2015.30. Epub 2015 Mar 5.

PubMed [citation]

PMID:: 25741868
PMCID:: PMC4544753

Details of each submission

From GeneDx, SCV000234030.9

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

Description

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease.

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

From PreventionGenetics, part of Exact Sciences, SCV000303113.1

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

#	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

From Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine, SCV000539427.2

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

Description

The c.1956T>C (p.Tyr652Tyr) variant in KCNH2 is classified as benign because it has been found in 67% (186322/279284) of chromosomes, including 63675 homozygotes, by the Genome Aggregation Database (https://gnomad.broadinstitute.org/variant/7-150648198-A-G).

#	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		1	not provided	1	not provided

From Molecular Diagnostic Laboratory for Inherited Cardiovascular Disease, Montreal Heart Institute, SCV001433181.1

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

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

From Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen - VKGL Data-share Consensus, SCV001740720.3

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

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

From Clinical Genetics, Academic Medical Center - VKGL Data-share Consensus, SCV001917029.1

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

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

From Genome Diagnostics Laboratory, University Medical Center Utrecht - VKGL Data-share Consensus, SCV001932339.1

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

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

From Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+ - VKGL Data-share Consensus, SCV001953027.1

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

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

From Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center - VKGL Data-share Consensus, SCV001971879.1

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

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

Last Updated: Oct 13, 2024

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