rs61742474

Positions:

chr14-23386375-G-A

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_002471.4(MYH6):c.4899C>T(p.His1633His) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000948 in 1,614,154 control chromosomes in the GnomAD database, including 15 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0048 ( 8 hom., cov: 31)

Exomes 𝑓: 0.00055 ( 7 hom. )

Consequence

MYH6
NM_002471.4 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: -6.12

Variant links:

Genes affected

MYH6 (HGNC:7576): (myosin heavy chain 6) Cardiac muscle myosin is a hexamer consisting of two heavy chain subunits, two light chain subunits, and two regulatory subunits. This gene encodes the alpha heavy chain subunit of cardiac myosin. The gene is located approximately 4kb downstream of the gene encoding the beta heavy chain subunit of cardiac myosin. Mutations in this gene cause familial hypertrophic cardiomyopathy and atrial septal defect 3. [provided by RefSeq, Feb 2017]

MYH6 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.88).

BP6

Variant 14-23386375-G-A is Benign according to our data. Variant chr14-23386375-G-A is described in ClinVar as [Benign]. Clinvar id is 44524.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr14-23386375-G-A is described in Lovd as [Benign].

BP7

Synonymous conserved (PhyloP=-6.12 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00477 (727/152332) while in subpopulation AFR AF= 0.0167 (694/41574). AF 95% confidence interval is 0.0157. There are 8 homozygotes in gnomad4. There are 346 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.

BS2

High AC in GnomAd4 at 727 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MYH6	NM_002471.4 linkuse as main transcript	c.4899C>T	p.His1633His	synonymous_variant	33/39	ENST00000405093.9	NP_002462.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MYH6	ENST00000405093.9 linkuse as main transcript	c.4899C>T	p.His1633His	synonymous_variant	33/39	5	NM_002471.4	ENSP00000386041.3		P13533

Frequencies

GnomAD3 genomes

AF:

0.00477

AC:

726

AN:

152214

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0167

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000578

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00334

GnomAD3 exomes

AF:

0.00130

AC:

327

AN:

251436

Hom.:

AF XY:

0.000979

AC XY:

133

AN XY:

135902

show subpopulations

Gnomad AFR exome

AF:

0.0163

Gnomad AMR exome

AF:

0.00113

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000652

Gnomad SAS exome

AF:

0.000131

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000264

Gnomad OTH exome

AF:

0.000652

GnomAD4 exome

AF:

0.000550

AC:

804

AN:

1461822

Hom.:

Cov.:

AF XY:

0.000499

AC XY:

363

AN XY:

727214

show subpopulations

Gnomad4 AFR exome

AF:

0.0177

Gnomad4 AMR exome

AF:

0.00123

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00123

Gnomad4 SAS exome

AF:

0.000151

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000288

Gnomad4 OTH exome

AF:

0.000994

GnomAD4 genome

AF:

0.00477

AC:

727

AN:

152332

Hom.:

Cov.:

AF XY:

0.00464

AC XY:

346

AN XY:

74500

show subpopulations

Gnomad4 AFR

AF:

0.0167

Gnomad4 AMR

AF:

0.00131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000579

Gnomad4 SAS

AF:

0.000208

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00331

Alfa

AF:

0.00145

Hom.:

Bravo

AF:

0.00535

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Benign

Submissions summary: Benign:9

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:5

Benign, no assertion criteria provided	clinical testing	Genome Diagnostics Laboratory, University Medical Center Utrecht	-	- -
Benign, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	Feb 23, 2012	His1633His in exon 33 of MYH6: This variant is not expected to have clinical sig nificance because it has been identified in 1.2% (44/3738) of African American c hromosomes from a broad population by the NHLBI Exome Sequencing Project (http:/ /evs.gs.washington.edu/EVS; dbSNP rs61742474). -
Benign, no assertion criteria provided	clinical testing	Clinical Genetics, Academic Medical Center	-	- -
Benign, no assertion criteria provided	clinical testing	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	-	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Apr 14, 2017	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. -

Hypertrophic cardiomyopathy 14

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 31, 2024

- -

Cardiomyopathy

Benign:1

Benign, criteria provided, single submitter

clinical testing

CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario

Dec 01, 2016

- -

not provided

Benign:1

Benign, criteria provided, single submitter

clinical testing

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Oct 14, 2023

- -

Cardiovascular phenotype

Benign:1

Benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 13, 2016

This alteration is classified as 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.88

CADD

Benign

0.17

DANN

Benign

0.91

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over