ClinVar Miner

Submissions for variant NM_000218.3(KCNQ1):c.1944C>T (p.Val648=)

gnomAD frequency: 0.00005  dbSNP: rs201698592
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Total submissions: 9
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000126442 SCV000169949 benign not specified 2013-03-19 criteria provided, single submitter clinical testing 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.
Labcorp Genetics (formerly Invitae), Labcorp RCV000631840 SCV000752937 benign Long QT syndrome 2025-01-27 criteria provided, single submitter clinical testing
Illumina Laboratory Services, Illumina RCV001103215 SCV001259942 benign Jervell and Lange-Nielsen syndrome 1 2017-04-27 criteria provided, single submitter clinical testing This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases was too high to be consistent with this variant causing disease. Therefore, this variant is classified as benign.
Illumina Laboratory Services, Illumina RCV001103216 SCV001259943 benign Long QT syndrome 1 2017-04-27 criteria provided, single submitter clinical testing This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to rule this variant out of causing disease. Therefore, this variant is classified as benign.
Illumina Laboratory Services, Illumina RCV001105132 SCV001262054 benign Short QT syndrome type 2 2017-04-27 criteria provided, single submitter clinical testing This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases was too high to be consistent with this variant causing disease. Therefore, this variant is classified as benign.
Illumina Laboratory Services, Illumina RCV001105133 SCV001262055 uncertain significance Atrial fibrillation, familial, 3 2017-04-27 criteria provided, single submitter clinical testing This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance.
Color Diagnostics, LLC DBA Color Health RCV001842429 SCV001351099 benign Cardiac arrhythmia 2018-11-21 criteria provided, single submitter clinical testing
All of Us Research Program, National Institutes of Health RCV000631840 SCV004836512 benign Long QT syndrome 2024-01-11 criteria provided, single submitter clinical testing
Ambry Genetics RCV004019719 SCV005033105 likely benign Cardiovascular phenotype 2023-11-06 criteria provided, single submitter clinical testing This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity.

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