14-23389063-G-A

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_002471.4(MYH6):c.3979-8C>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.018 ( 17 hom., cov: 0)

Exomes 𝑓: 0.0050 ( 23 hom. )

Failed GnomAD Quality Control

Consequence

MYH6
NM_002471.4 splice_region, intron

Scores

Splicing: ADA: 0.00007639

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: 0.275

Publications

1 publications found

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 Gene-Disease associations (from GenCC):

hypertrophic cardiomyopathy 14
Inheritance: AD Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, Laboratory for Molecular Medicine
Keppen-Lubinsky syndrome
Inheritance: AD Classification: MODERATE Submitted by: Illumina
familial isolated dilated cardiomyopathy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
atrial septal defect 3
Inheritance: AD Classification: LIMITED Submitted by: G2P
dilated cardiomyopathy
Inheritance: AD Classification: LIMITED Submitted by: ClinGen
hypertrophic cardiomyopathy
Inheritance: AD Classification: LIMITED Submitted by: ClinGen

MYH6 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.75).

BP6

Variant 14-23389063-G-A is Benign according to our data. Variant chr14-23389063-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 196173.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.167 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MYH6	NM_002471.4 link	c.3979-8C>T		splice_region_variant, intron_variant	Intron 28 of 38	ENST00000405093.9	NP_002462.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MYH6	ENST00000405093.9 link	c.3979-8C>T		splice_region_variant, intron_variant	Intron 28 of 38	5	NM_002471.4	ENSP00000386041.3		P13533

Frequencies

GnomAD3 genomes

AF:

0.0176

AC:

1146

AN:

64966

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.176

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0116

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.0212

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.0217

Gnomad NFE

AF:

0.000483

Gnomad OTH

AF:

0.0128

GnomAD2 exomes

AF:

0.00483

AC:

737

AN:

152678

AF XY:

0.00486

show subpopulations

Gnomad AFR exome

AF:

0.0272

Gnomad AMR exome

AF:

0.00393

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000283

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000428

Gnomad OTH exome

AF:

0.00483

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.00502

AC:

2166

AN:

431174

Hom.:

Cov.:

AF XY:

0.00576

AC XY:

1213

AN XY:

210770

show subpopulations

African (AFR)

AF:

0.0791

AC:

758

AN:

9588

American (AMR)

AF:

0.00967

AC:

125

AN:

12930

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

5700

East Asian (EAS)

AF:

0.000316

AC:

AN:

12640

South Asian (SAS)

AF:

0.0348

AC:

847

AN:

24330

European-Finnish (FIN)

AF:

0.000161

AC:

AN:

12426

Middle Eastern (MID)

AF:

0.00810

AC:

AN:

1852

European-Non Finnish (NFE)

AF:

0.000728

AC:

244

AN:

335026

Other (OTH)

AF:

0.0103

AC:

171

AN:

16682

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.537

Heterozygous variant carriers

176

263

351

439

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

126

168

210

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0177

AC:

1148

AN:

64952

Hom.:

Cov.:

AF XY:

0.0173

AC XY:

554

AN XY:

32112

show subpopulations

African (AFR)

AF:

0.176

AC:

965

AN:

5488

American (AMR)

AF:

0.0116

AC:

AN:

8544

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

1556

East Asian (EAS)

AF:

0.00

AC:

AN:

4040

South Asian (SAS)

AF:

0.0213

AC:

AN:

2486

European-Finnish (FIN)

AF:

0.00

AC:

AN:

6250

Middle Eastern (MID)

AF:

0.0242

AC:

AN:

124

European-Non Finnish (NFE)

AF:

0.000483

AC:

AN:

35204

Other (OTH)

AF:

0.0127

AC:

AN:

866

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.497

Heterozygous variant carriers

103

154

206

257

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00885

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:9

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:4

May 19, 2015

Eurofins Ntd Llc (ga)

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Oct 25, 2016

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method: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. -

Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Clinical Genetics, Academic Medical Center

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

not provided

Benign:2

Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Oct 25, 2024

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Hypertrophic cardiomyopathy 14

Benign:1

Jan 30, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Cardiomyopathy

Benign:1

Apr 05, 2016

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

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Dilated cardiomyopathy 1EE;C2750467:Hypertrophic cardiomyopathy 14;C3279790:Atrial septal defect 3;C3279791:Sick sinus syndrome 3, susceptibility to;C3495498:Hypertrophic cardiomyopathy 1

Benign:1

Sep 07, 2021

Fulgent Genetics, Fulgent Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.75

CADD

Benign

2.1

(source)

DANN

Benign

0.96

PhyloP100

0.28

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000076

dbscSNV1_RF

Benign

0.0040

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over