rs747978305

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PP3_ModerateBS2

The NM_002471.4(MYH6):c.3529C>T(p.Arg1177Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000145 in 1,587,200 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1177Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

MYH6
NM_002471.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.38

Publications

2 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: Likely_benign. The variant received -2 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.882

BS2

High AC in GnomAdExome4 at 19 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MYH6	NM_002471.4 link	c.3529C>T	p.Arg1177Trp	missense_variant	Exon 26 of 39	ENST00000405093.9	NP_002462.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MYH6	ENST00000405093.9 link	c.3529C>T	p.Arg1177Trp	missense_variant	Exon 26 of 39	5	NM_002471.4	ENSP00000386041.3		P13533

Frequencies

GnomAD3 genomes

AF:

0.0000264

AC:

AN:

151648

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:

0.0000589

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000184

AC:

AN:

217948

AF XY:

0.0000167

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000612

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000184

GnomAD4 exome

AF:

0.0000132

AC:

AN:

1435552

Hom.:

Cov.:

AF XY:

0.0000112

AC XY:

AN XY:

712364

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32826

American (AMR)

AF:

0.00

AC:

AN:

42036

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25760

East Asian (EAS)

AF:

0.0000258

AC:

AN:

38714

South Asian (SAS)

AF:

0.0000118

AC:

AN:

84808

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51318

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4110

European-Non Finnish (NFE)

AF:

0.0000146

AC:

AN:

1096718

Other (OTH)

AF:

0.0000169

AC:

AN:

59262

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.488

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000264

AC:

AN:

151648

Hom.:

Cov.:

AF XY:

0.0000405

AC XY:

AN XY:

74060

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41218

American (AMR)

AF:

0.00

AC:

AN:

15214

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5174

South Asian (SAS)

AF:

0.00

AC:

AN:

4788

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10564

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000589

AC:

AN:

67920

Other (OTH)

AF:

0.00

AC:

AN:

2072

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.550

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000434

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.0000169

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Hypertrophic cardiomyopathy 14

Uncertain:1

Dec 10, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 1177 of the MYH6 protein (p.Arg1177Trp). This variant is present in population databases (rs747978305, gnomAD 0.007%). This missense change has been observed in individuals with familial dilated cardiomyopathy (PMID: 20215591). ClinVar contains an entry for this variant (Variation ID: 537941). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is expected to disrupt MYH6 protein function with a positive predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.57

BayesDel_addAF

Pathogenic

0.25

BayesDel_noAF

Pathogenic

0.30

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.87

D;D

Eigen

Uncertain

0.39

Eigen_PC

Uncertain

0.24

FATHMM_MKL

Uncertain

0.89

LIST_S2

Uncertain

0.94

D;.

M_CAP

Pathogenic

0.44

MetaRNN

Pathogenic

0.88

D;D

MetaSVM

Uncertain

0.66

MutationAssessor

Pathogenic

3.5

M;M

PhyloP100

2.4

PrimateAI

Pathogenic

0.88

PROVEAN

Pathogenic

-5.3

D;D

REVEL

Pathogenic

0.86

Sift

Pathogenic

0.0

D;D

Sift4G

Pathogenic

0.0

D;D

Polyphen

1.0

D;D

Vest4

0.93

MutPred

0.63

Loss of ubiquitination at K1175 (P = 0.0426);Loss of ubiquitination at K1175 (P = 0.0426);

MVP

0.86

MPC

3.1

ClinPred

0.96

GERP RS

2.3

Varity_R

0.48

gMVP

0.75

Mutation Taster

=37/63

disease causing

(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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

rs747978305

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over