rs45580436

Variant names:

Variant summary

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

The NM_000257.4(MYH7):c.895+17G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.014 in 1,586,142 control chromosomes in the GnomAD database, including 515 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). The gene MYH7 is included in the ClinGen Criteria Specification Registry.

Frequency

Genomes: 𝑓 0.025 ( 105 hom., cov: 32)

Exomes 𝑓: 0.013 ( 410 hom. )

Consequence

MYH7
NM_000257.4 intron

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:11

Conservation

PhyloP100: -2.11

Publications

8 publications found

Variant links:

Genes affected

MYH7 (HGNC:7577): (myosin heavy chain 7) Muscle myosin is a hexameric protein containing 2 heavy chain subunits, 2 alkali light chain subunits, and 2 regulatory light chain subunits. This gene encodes the beta (or slow) heavy chain subunit of cardiac myosin. It is expressed predominantly in normal human ventricle. It is also expressed in skeletal muscle tissues rich in slow-twitch type I muscle fibers. Changes in the relative abundance of this protein and the alpha (or fast) heavy subunit of cardiac myosin correlate with the contractile velocity of cardiac muscle. Its expression is also altered during thyroid hormone depletion and hemodynamic overloading. Mutations in this gene are associated with familial hypertrophic cardiomyopathy, myosin storage myopathy, dilated cardiomyopathy, and Laing distal myopathy. [provided by RefSeq, May 2022]

MYH7 Gene-Disease associations (from GenCC):

dilated cardiomyopathy
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
dilated cardiomyopathy 1S
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae)
hypertrophic cardiomyopathy
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
hypertrophic cardiomyopathy 1
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
MYH7-related skeletal myopathy
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet
myopathy, myosin storage, autosomal recessive
Inheritance: AR Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
myopathy, myosin storage, autosomal dominant
Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
congenital myopathy 7A, myosin storage, autosomal dominant
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Ebstein anomaly
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
familial isolated dilated cardiomyopathy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
hyaline body myopathy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
left ventricular noncompaction
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
arrhythmogenic right ventricular cardiomyopathy
Inheritance: AD Classification: LIMITED Submitted by: ClinGen
congenital heart disease
Inheritance: AD Classification: LIMITED Submitted by: ClinGen

MYH7 links:

Genome browser will be placed here

ACMG classification

Specifications for MYH7 are available in the ClinGen Criteria Specification Registry and recommended for reference when assigning criteria.

Classification was made for transcript

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

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.91).

BP6

Variant 14-23430884-C-T is Benign according to our data. Variant chr14-23430884-C-T is described in ClinVar as Benign. ClinVar VariationId is 188603.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BA1

GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.0689 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000257.4. 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
	MYH7	NM_000257.4	MANE Select	c.895+17G>A		intron	N/A	NP_000248.2	P12883
	MYH7	NM_001407004.1		c.895+17G>A		intron	N/A	NP_001393933.1	P12883

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
MYH7	ENST00000355349.4	TSL:1 MANE Select	c.895+17G>A	intron	N/A	ENSP00000347507.3	P12883
MYH7	ENST00000858540.1		c.895+17G>A	intron	N/A	ENSP00000528599.1
MYH7	ENST00000965955.1		c.895+17G>A	intron	N/A	ENSP00000636014.1

Frequencies

GnomAD3 genomes

AF:

0.0248

AC:

3767

AN:

152060

Hom.:

104

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0468

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0287

Gnomad ASJ

AF:

0.0331

Gnomad EAS

AF:

0.0749

Gnomad SAS

AF:

0.0382

Gnomad FIN

AF:

0.00604

Gnomad MID

AF:

0.0791

Gnomad NFE

AF:

0.00773

Gnomad OTH

AF:

0.0416

GnomAD2 exomes

AF:

0.0241

AC:

6052

AN:

251438

AF XY:

0.0232

show subpopulations

Gnomad AFR exome

AF:

0.0506

Gnomad AMR exome

AF:

0.0383

Gnomad ASJ exome

AF:

0.0259

Gnomad EAS exome

AF:

0.0734

Gnomad FIN exome

AF:

0.00559

Gnomad NFE exome

AF:

0.00804

Gnomad OTH exome

AF:

0.0252

GnomAD4 exome

AF:

0.0129

AC:

18482

AN:

1433964

Hom.:

410

Cov.:

AF XY:

0.0134

AC XY:

9596

AN XY:

715172

show subpopulations

African (AFR)

AF:

0.0546

AC:

1795

AN:

32868

American (AMR)

AF:

0.0371

AC:

1658

AN:

44682

Ashkenazi Jewish (ASJ)

AF:

0.0286

AC:

743

AN:

25970

East Asian (EAS)

AF:

0.0838

AC:

3316

AN:

39548

South Asian (SAS)

AF:

0.0344

AC:

2947

AN:

85622

European-Finnish (FIN)

AF:

0.00500

AC:

267

AN:

53410

Middle Eastern (MID)

AF:

0.0647

AC:

370

AN:

5716

European-Non Finnish (NFE)

AF:

0.00575

AC:

6245

AN:

1086664

Other (OTH)

AF:

0.0192

AC:

1141

AN:

59484

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.489

Heterozygous variant carriers

1040

2079

3119

4158

5198

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

334

668

1002

1336

1670

<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:

0.0248

AC:

3780

AN:

152178

Hom.:

105

Cov.:

AF XY:

0.0251

AC XY:

1865

AN XY:

74400

show subpopulations

African (AFR)

AF:

0.0469

AC:

1946

AN:

41516

American (AMR)

AF:

0.0288

AC:

441

AN:

15292

Ashkenazi Jewish (ASJ)

AF:

0.0331

AC:

115

AN:

3470

East Asian (EAS)

AF:

0.0751

AC:

388

AN:

5166

South Asian (SAS)

AF:

0.0380

AC:

183

AN:

4814

European-Finnish (FIN)

AF:

0.00604

AC:

AN:

10592

Middle Eastern (MID)

AF:

0.0714

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00773

AC:

526

AN:

68008

Other (OTH)

AF:

0.0454

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.503

Heterozygous variant carriers

184

368

551

735

919

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

144

192

240

<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:

0.0148

Hom.:

Bravo

AF:

0.0287

Asia WGS

AF:

0.0810

AC:

283

AN:

3478

ClinVar

ClinVar submissions

Significance:Benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (5)

not provided (3)

Hypertrophic cardiomyopathy (2)

Cardiovascular phenotype (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.91

CADD

Benign

0.24

(source)

DANN

Benign

0.49

PhyloP100

-2.1

Mutation Taster

=100/0

polymorphism (auto)

(source)

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

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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