rs1263987728

Variant summary

Our verdict is Likely pathogenic. Variant got 9 ACMG points: 9P and 0B. PM2PP2PP3_StrongPP5_Moderate

The NM_002471.4(MYH6):c.735T>G(p.Phe245Leu) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,614,128 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Pathogenic (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

MYH6
NM_002471.4 missense, splice_region

Scores

Splicing: ADA: 0.00007970

Clinical Significance

Pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 0.0740

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 Likely_pathogenic. Variant got 9 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant where missense usually causes diseases, MYH6

PP3

MetaRNN computational evidence supports a deleterious effect, 0.946

PP5

Variant 14-23404296-A-C is Pathogenic according to our data. Variant chr14-23404296-A-C is described in ClinVar as [Pathogenic]. Clinvar id is 520533.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MYH6	NM_002471.4 linkuse as main transcript	c.735T>G	p.Phe245Leu	missense_variant, splice_region_variant	8/39	ENST00000405093.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MYH6	ENST00000405093.9 linkuse as main transcript	c.735T>G	p.Phe245Leu	missense_variant, splice_region_variant	8/39	5	NM_002471.4	P1
MYH6	ENST00000557461.2 linkuse as main transcript	n.802T>G		splice_region_variant, non_coding_transcript_exon_variant	8/14	5

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152246

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461882

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727244

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152246

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74376

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Primary familial dilated cardiomyopathy

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Molecular Diagnostic Laboratory for Inherited Cardiovascular Disease, Montreal Heart Institute

Feb 11, 2017

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

1.0

BayesDel_addAF

Pathogenic

0.33

BayesDel_noAF

Pathogenic

0.24

Cadd

Benign

Dann

Uncertain

0.99

DEOGEN2

Pathogenic

0.94

D;D

Eigen

Benign

-0.17

Eigen_PC

Benign

-0.42

FATHMM_MKL

Uncertain

0.92

LIST_S2

Uncertain

0.90

D;.

M_CAP

Pathogenic

0.34

MetaRNN

Pathogenic

0.95

D;D

MetaSVM

Uncertain

0.41

MutationAssessor

Pathogenic

4.1

H;H

MutationTaster

Benign

1.0

D;D

PrimateAI

Pathogenic

0.92

PROVEAN

Pathogenic

-4.7

D;D

REVEL

Pathogenic

0.75

Sift

Uncertain

0.0010

D;D

Sift4G

Uncertain

0.017

D;D

Polyphen

0.98

D;D

Vest4

0.77

MutPred

0.82

Gain of catalytic residue at R250 (P = 2e-04);Gain of catalytic residue at R250 (P = 2e-04);

MVP

0.81

MPC

0.50

ClinPred

0.98

GERP RS

-5.1

Varity_R

0.84

gMVP

0.94

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000080

dbscSNV1_RF

Benign

0.31

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