rs727505164

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_002471.4(MYH6):​c.3324G>T​(p.Lys1108Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000007 in 1,429,108 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. K1108E) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 7.0e-7 ( 0 hom. )

Consequence

MYH6
NM_002471.4 missense

Scores

4
11
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.94

Publications

0 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MYH6NM_002471.4 linkc.3324G>T p.Lys1108Asn missense_variant Exon 25 of 39 ENST00000405093.9 NP_002462.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MYH6ENST00000405093.9 linkc.3324G>T p.Lys1108Asn missense_variant Exon 25 of 39 5 NM_002471.4 ENSP00000386041.3

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
251490
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
7.00e-7
AC:
1
AN:
1429108
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
710378
show subpopulations
African (AFR)
AF:
0.0000307
AC:
1
AN:
32554
American (AMR)
AF:
0.00
AC:
0
AN:
43708
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24830
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37406
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85946
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50674
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5584
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1090218
Other (OTH)
AF:
0.00
AC:
0
AN:
58188
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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
Cov.:
31
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Jul 24, 2015
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

proposed classification - variant undergoing re-assessment, contact laboratory -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.92
BayesDel_addAF
Benign
-0.11
T
BayesDel_noAF
Benign
-0.22
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.71
D;D
Eigen
Pathogenic
0.71
Eigen_PC
Uncertain
0.59
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.84
T;.
M_CAP
Uncertain
0.20
D
MetaRNN
Uncertain
0.70
D;D
MetaSVM
Uncertain
0.67
D
MutationAssessor
Pathogenic
3.1
M;M
PhyloP100
2.9
PrimateAI
Pathogenic
0.83
D
PROVEAN
Uncertain
-4.0
D;D
REVEL
Uncertain
0.64
Sift
Uncertain
0.016
D;D
Sift4G
Uncertain
0.013
D;D
Polyphen
1.0
D;D
Vest4
0.60
MutPred
0.51
Loss of ubiquitination at K1108 (P = 0.0118);Loss of ubiquitination at K1108 (P = 0.0118);
MVP
0.74
MPC
1.2
ClinPred
0.98
D
GERP RS
4.7
Varity_R
0.47
gMVP
0.66
Mutation Taster
=41/59
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.17
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs727505164; hg19: chr14-23861789; COSMIC: COSV100676691; COSMIC: COSV100676691; API