chr14-23397060-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_002471.4(MYH6):c.2071G>A(p.Val691Ile) variant causes a missense change. The variant allele was found at a frequency of 0.000434 in 1,614,194 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0026 ( 2 hom., cov: 33)

Exomes 𝑓: 0.00021 ( 0 hom. )

Consequence

MYH6
NM_002471.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:10

Conservation

PhyloP100: 4.72

Publications

3 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):

MYH-6 related congenital heart defects
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
hypertrophic cardiomyopathy 14
Inheritance: AD Classification: STRONG, LIMITED Submitted by: Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae)
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: NO_KNOWN Submitted by: ClinGen

MYH6 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.011579096).

BP6

Variant 14-23397060-C-T is Benign according to our data. Variant chr14-23397060-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 164242.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00259 (395/152312) while in subpopulation AFR AF = 0.00917 (381/41564). AF 95% confidence interval is 0.00841. There are 2 homozygotes in GnomAd4. There are 190 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High AC in GnomAd4 at 395 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002471.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MYH6	NM_002471.4	MANE Select	c.2071G>A	p.Val691Ile	missense	Exon 18 of 39	NP_002462.2	P13533

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
MYH6	ENST00000405093.9	TSL:5 MANE Select	c.2071G>A	p.Val691Ile	missense	Exon 18 of 39	ENSP00000386041.3	P13533
MYH6	ENST00000968262.1		c.2104G>A	p.Val702Ile	missense	Exon 18 of 39	ENSP00000638321.1
MYH6	ENST00000968257.1		c.2071G>A	p.Val691Ile	missense	Exon 18 of 39	ENSP00000638316.1

Frequencies

GnomAD3 genomes

AF:

0.00260

AC:

395

AN:

152194

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00919

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00191

GnomAD2 exomes

AF:

0.000668

AC:

168

AN:

251440

AF XY:

0.000486

show subpopulations

Gnomad AFR exome

AF:

0.00923

Gnomad AMR exome

AF:

0.000463

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000209

AC:

305

AN:

1461882

Hom.:

Cov.:

AF XY:

0.000176

AC XY:

128

AN XY:

727238

show subpopulations

African (AFR)

AF:

0.00747

AC:

250

AN:

33480

American (AMR)

AF:

0.000492

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1112012

Other (OTH)

AF:

0.000513

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

102

128

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.00259

AC:

395

AN:

152312

Hom.:

Cov.:

AF XY:

0.00255

AC XY:

190

AN XY:

74478

show subpopulations

African (AFR)

AF:

0.00917

AC:

381

AN:

41564

American (AMR)

AF:

0.000653

AC:

AN:

15310

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5172

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68020

Other (OTH)

AF:

0.00189

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.498

Heterozygous variant carriers

100

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.00136

Hom.:

Bravo

AF:

0.00293

ESP6500AA

AF:

0.0104

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000791

AC:

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (5)

not provided (2)

Cardiomyopathy (1)

Cardiovascular phenotype (1)

Hypertrophic cardiomyopathy 14 (1)

MYH6-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.29

BayesDel_addAF

Benign

-0.38

BayesDel_noAF

Benign

-0.31

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.58

Eigen

Benign

0.056

Eigen_PC

Benign

0.15

FATHMM_MKL

Uncertain

0.92

LIST_S2

Uncertain

0.92

MetaRNN

Benign

0.012

MetaSVM

Benign

-0.37

MutationAssessor

Benign

1.9

PhyloP100

4.7

PrimateAI

Uncertain

0.69

PROVEAN

Benign

-0.83

REVEL

Uncertain

0.37

Sift

Uncertain

0.020

Sift4G

Uncertain

0.049

Polyphen

0.0010

Vest4

0.39

MVP

0.78

MPC

0.31

ClinPred

0.028

GERP RS

4.1

Varity_R

0.27

gMVP

0.71

Mutation Taster

=61/39

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over