VCV000042490.28 - ClinVar

NM_000218.3(KCNQ1):c.478-10G>A

Germline

Classification

The aggregate germline classification for this variant, typically for a monogenic or Mendelian disorder as in the ACMG/AMP guidelines, or for response to a drug. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the aggregate classification.

(12)

Stars represent the aggregate review status, or the level of review supporting the aggregate germline classification for this VCV record. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the review status. The number of submissions which contribute to this review status is shown in parentheses.

Benign

criteria provided, multiple submitters, no conflicts

Somatic

No data submitted for somatic clinical impact

Somatic

No data submitted for oncogenicity

Variant Details

Identifiers

NM_000218.3(KCNQ1):c.478-10G>A

Variation ID: 42490 Accession: VCV000042490.28

Type and length

single nucleotide variant, 1 bp

Location

Cytogenetic: 11p15.5 11: 2570618 (GRCh38) [ NCBI UCSC ] 11: 2591848 (GRCh37) [ NCBI UCSC ]

Timeline in ClinVar

	First in ClinVar Help The date this variant first appeared in ClinVar with each type of classification.	Last submission Help The date of the most recent submission for each type of classification for this variant.	Last evaluated Help The most recent date that a submitter evaluated this variant for each type of classification.
Germline	Jan 31, 2015	Sep 29, 2024	Feb 1, 2024

HGVS

Nucleotide	Protein	Molecular consequence
NM_000218.3:c.478-10G>A MANE Select Help Transcripts from the Matched Annotation from the NCBI and EMBL-EBI (MANE) collaboration.		intron variant
NM_001406836.1:c.478-10G>A		intron variant
NM_001406837.1:c.208-10G>A		intron variant
NM_001406838.1:c.478-12817G>A		intron variant
NM_181798.2:c.97-10G>A		intron variant
NC_000011.10:g.2570618G>A
NC_000011.9:g.2591848G>A
NG_008935.1:g.130628G>A
LRG_287:g.130628G>A
LRG_287t1:c.478-10G>A

... more HGVS ... less HGVS

Protein change

Other names

Canonical SPDI

NC_000011.10:2570617:G:A

Functional consequence Help The effect of the variant on RNA or protein function, based on experimental evidence from submitters.

Global minor allele frequency (GMAF) Help The global minor allele frequency calculated by the 1000 Genomes Project. The minor allele at this location is indicated in parentheses and may be different from the allele represented by this VCV record.

0.05112 (A)

Allele frequency Help The frequency of the allele represented by this VCV record.

NHLBI Exome Sequencing Project (ESP) Exome Variant Server 0.05262

Trans-Omics for Precision Medicine (TOPMed) 0.05304

1000 Genomes Project 30x 0.05309

The Genome Aggregation Database (gnomAD), exomes 0.01173

Exome Aggregation Consortium (ExAC) 0.01440

The Genome Aggregation Database (gnomAD) 0.04910

1000 Genomes Project 0.05112

Links

ClinGen: CA007197 dbSNP: rs28730752 VarSome

Genes

Gene	OMIM	ClinGen Gene Dosage Sensitivity Curation		Variation Viewer Help Links to Variation Viewer, a genome browser to view variation data from NCBI databases.	Related variants
Gene	OMIM	HI score Help The haploinsufficiency score for the gene, curated by ClinGen’s Dosage Sensitivity Curation task team.	TS score Help The triplosensitivity score for the gene, curated by ClinGen’s Dosage Sensitivity Curation task team.		Within gene Help The number of variants in ClinVar that are contained within this gene, with a link to view the list of variants.	All Help The number of variants in ClinVar for this gene, including smaller variants within the gene and larger CNVs that overlap or fully contain the gene.
KCNQ1		Sufficient evidence for dosage pathogenicity	No evidence available	GRCh38 GRCh38 GRCh37	1721	2664

Conditions - Germline

Condition Help The condition for this variant-condition (RCV) record in ClinVar.	Classification Help The aggregate germline classification for this variant-condition (RCV) record in ClinVar. The number of submissions that contribute to this aggregate classification is shown in parentheses. (# of submissions)	Review status Help The aggregate review status for this variant-condition (RCV) record in ClinVar. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the review status.	Last evaluated Help The most recent date that a submitter evaluated this variant for the condition.	Variation/condition record Help The RCV accession number, with most recent version number, for the variant-condition record, with a link to the RCV web page.
not specified	Benign (2)	criteria provided, single submitter	May 7, 2012	RCV000035346.15
Congenital long QT syndrome	Benign (1)	criteria provided, single submitter	Jun 14, 2016	RCV000315237.14
Cardiac arrhythmia	Benign (1)	criteria provided, single submitter	Mar 19, 2018	RCV001841560.10
Jervell and Lange-Nielsen syndrome 1	Benign (1)	criteria provided, single submitter	Jan 13, 2018	RCV000299402.14
Long QT syndrome	Benign (1)	criteria provided, single submitter	Feb 1, 2024	RCV000354280.21
Atrial fibrillation, familial, 3	Benign (1)	criteria provided, single submitter	Jan 13, 2018	RCV000398075.14
Short QT syndrome type 2	Benign (1)	criteria provided, single submitter	Jan 13, 2018	RCV000399181.14
Long QT syndrome 1	Benign (1)	criteria provided, single submitter	Jan 13, 2018	RCV001094024.13
not provided	Benign (3)	criteria provided, multiple submitters, no conflicts	Mar 3, 2015	RCV001705644.12

Submissions - Germline

Classification Help The submitted germline classification for each SCV record. (Last evaluated)	Review status Help Stars represent the review status, or the level of review supporting the submitted (SCV) record. This value is calculated by NCBI based on data from the submitter. Read our rules for calculating the review status. This column also includes a link to the submitter’s assertion criteria if provided, and the collection method. (Assertion criteria)	Condition Help The condition for the classification, provided by the submitter for this submitted (SCV) record. This column also includes the affected status and allele origin of individuals observed with this variant.	Submitter Help The submitting organization for this submitted (SCV) record. This column also includes the SCV accession and version number, the date this SCV first appeared in ClinVar, and the date that this SCV was last updated in ClinVar.	More information Help This column includes more information supporting the classification, including citations, the comment on classification, and detailed evidence provided as observations of the variant by the submitter.
Benign (Mar 19, 2018)	criteria provided, single submitter (ACMG Guidelines, 2015) Method: clinical testing	Arrhythmia Affected status: unknown Allele origin: germline	Color Diagnostics, LLC DBA Color Health Accession: SCV000902777.1 First in ClinVar: May 20, 2019 Last updated: May 20, 2019
Benign (-)	criteria provided, single submitter (ACMG Guidelines, 2015) Method: not provided	not provided (Autosomal recessive inheritance) Affected status: yes Allele origin: germline	Breakthrough Genomics, Breakthrough Genomics Accession: SCV005321341.1 First in ClinVar: Sep 29, 2024 Last updated: Sep 29, 2024
Benign (Jun 14, 2016)	criteria provided, single submitter (ICSL Variant Classification 20161018) Method: clinical testing	Romano-Ward Syndrome Affected status: unknown Allele origin: germline	Illumina Laboratory Services, Illumina Accession: SCV000370239.2 First in ClinVar: Dec 06, 2016 Last updated: Dec 06, 2016
Benign (May 07, 2012)	criteria provided, single submitter (LMM Criteria) Method: clinical testing	not specified Affected status: not provided Allele origin: germline	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine Accession: SCV000058994.5 First in ClinVar: May 03, 2013 Last updated: Jan 31, 2015	Comment: 478-10G>A in Intron 02 of KCNQ1: This variant is not expected to have clinical s ignificance because it has been identified in 14.7% (549/3734) of … (more) 478-10G>A in Intron 02 of KCNQ1: This variant is not expected to have clinical s ignificance because it has been identified in 14.7% (549/3734) of African Americ an chromosomes from a broad population by the NHLBI Exome Sequencing Project (ht tp://evs.gs.washington.edu/EVS; dbSNP rs28730752). (less) Number of individuals with the variant: 55
Benign (Jan 13, 2018)	criteria provided, single submitter (ICSL Variant Classification Criteria 13 December 2019) Method: clinical testing	Long QT syndrome 1 Affected status: unknown Allele origin: germline	Illumina Laboratory Services, Illumina Accession: SCV000370237.3 First in ClinVar: Dec 06, 2016 Last updated: May 31, 2020	Comment: This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated … (more) This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. (less)
Benign (Jan 13, 2018)	criteria provided, single submitter (ICSL Variant Classification Criteria 13 December 2019) Method: clinical testing	Atrial fibrillation, familial, 3 Affected status: unknown Allele origin: germline	Illumina Laboratory Services, Illumina Accession: SCV000370235.3 First in ClinVar: Dec 06, 2016 Last updated: May 31, 2020	Comment: This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated … (more) This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. (less)
Benign (Jan 13, 2018)	criteria provided, single submitter (ICSL Variant Classification Criteria 13 December 2019) Method: clinical testing	Jervell and Lange-Nielsen syndrome 1 Affected status: unknown Allele origin: germline	Illumina Laboratory Services, Illumina Accession: SCV000370236.3 First in ClinVar: Dec 06, 2016 Last updated: May 31, 2020	Comment: This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated … (more) This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. (less)
Benign (Jan 13, 2018)	criteria provided, single submitter (ICSL Variant Classification Criteria 13 December 2019) Method: clinical testing	Short QT syndrome type 2 Affected status: unknown Allele origin: germline	Illumina Laboratory Services, Illumina Accession: SCV000370238.3 First in ClinVar: Dec 06, 2016 Last updated: May 31, 2020	Comment: This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated … (more) This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. (less)
Benign (Mar 03, 2015)	criteria provided, single submitter (GeneDx Variant Classification Process June 2021) Method: clinical testing	Not Provided Affected status: yes Allele origin: germline	GeneDx Accession: SCV001891194.1 First in ClinVar: Sep 26, 2021 Last updated: Sep 26, 2021
Benign (Feb 01, 2024)	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015)) Method: clinical testing	Long QT syndrome Affected status: unknown Allele origin: germline	Labcorp Genetics (formerly Invitae), Labcorp Accession: SCV000555799.8 First in ClinVar: Dec 06, 2016 Last updated: Feb 20, 2024
Benign (-)	no assertion criteria provided Method: clinical testing	not specified Affected status: yes Allele origin: germline	Clinical Genetics, Academic Medical Center Additional submitter: Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen Study: VKGL Data-share Consensus Accession: SCV001921751.1 First in ClinVar: Sep 26, 2021 Last updated: Sep 26, 2021
Likely benign (-)	no assertion criteria provided Method: clinical testing	not provided Affected status: yes Allele origin: germline	Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+ Additional submitter: Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen Study: VKGL Data-share Consensus Accession: SCV001956487.1 First in ClinVar: Oct 02, 2021 Last updated: Oct 02, 2021
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Comment:

478-10G>A in Intron 02 of KCNQ1: This variant is not expected to have clinical s ignificance because it has been identified in 14.7% (549/3734) of African Americ an chromosomes from a broad population by the NHLBI Exome Sequencing Project (ht tp://evs.gs.washington.edu/EVS; dbSNP rs28730752).

Comment:

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease.

Comment:

Germline Functional Evidence

There is no functional evidence in ClinVar for this variation. If you have generated functional data for this variation, please consider submitting that data to ClinVar.

Comment:

Citations for germline classification of this variant

There are no citations for germline classification of this variant in ClinVar. If you know of citations for this variation, please consider submitting that information to ClinVar.

Text-mined citations for rs28730752 ...

These citations are identified by LitVar using the rs number, so they may include citations for more than one variant at this location. Please review the LitVar results carefully for your variant of interest.

Record last updated Nov 19, 2024

ClinVar Genomic variation as it relates to human health

NM_000218.3(KCNQ1):c.478-10G>A

Variant Details

Genes

Conditions - Germline

Submissions - Germline

Germline Functional Evidence

Citations for germline classification of this variant

Text-mined citations for rs28730752 ...