rs756369181
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Variant summary
Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP2BS2
The NM_002471.4(MYH6):c.610C>T(p.Arg204Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000867 in 1,613,958 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000062 ( 0 hom. )
Consequence
MYH6
NM_002471.4 missense
NM_002471.4 missense
Scores
14
5
Clinical Significance
Conservation
PhyloP100: 0.774
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]
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ACMG classification
Classification made for transcript
Verdict is Likely_benign. Variant got -3 ACMG points.
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), MYH6. . Gene score misZ 0.85843 (greater than the threshold 3.09). Trascript score misZ 4.1282 (greater than threshold 3.09). GenCC has associacion of gene with dilated cardiomyopathy, hypertrophic cardiomyopathy, Keppen-Lubinsky syndrome, atrial septal defect 3, familial isolated dilated cardiomyopathy, hypertrophic cardiomyopathy 14.
BS2
High AC in GnomAd4 at 5 AD gene.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
MYH6 | NM_002471.4 | c.610C>T | p.Arg204Cys | missense_variant | 7/39 | ENST00000405093.9 | NP_002462.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
MYH6 | ENST00000405093.9 | c.610C>T | p.Arg204Cys | missense_variant | 7/39 | 5 | NM_002471.4 | ENSP00000386041 | P1 | |
MYH6 | ENST00000557461.2 | n.677C>T | non_coding_transcript_exon_variant | 7/14 | 5 |
Frequencies
GnomAD3 genomes AF: 0.0000329 AC: 5AN: 152090Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.0000239 AC: 6AN: 251486Hom.: 0 AF XY: 0.0000221 AC XY: 3AN XY: 135918
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GnomAD4 exome AF: 0.00000616 AC: 9AN: 1461868Hom.: 0 Cov.: 33 AF XY: 0.00000963 AC XY: 7AN XY: 727240
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GnomAD4 genome AF: 0.0000329 AC: 5AN: 152090Hom.: 0 Cov.: 32 AF XY: 0.0000539 AC XY: 4AN XY: 74270
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Hypertrophic cardiomyopathy 14 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Nov 29, 2022 | This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 204 of the MYH6 protein (p.Arg204Cys). 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. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt MYH6 protein function. ClinVar contains an entry for this variant (Variation ID: 574612). This variant has not been reported in the literature in individuals affected with MYH6-related conditions. This variant is present in population databases (rs756369181, gnomAD 0.02%). - |
Dilated cardiomyopathy 1EE;C2750467:Hypertrophic cardiomyopathy 14;C3279790:Atrial septal defect 3;C3279791:Sick sinus syndrome 3, susceptibility to;C3495498:Hypertrophic cardiomyopathy 1 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Fulgent Genetics, Fulgent Genetics | Nov 22, 2021 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
CADD
Pathogenic
DANN
Uncertain
DEOGEN2
Uncertain
D;D
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Uncertain
D
LIST_S2
Uncertain
D;.
M_CAP
Uncertain
D
MetaRNN
Uncertain
D;D
MetaSVM
Uncertain
D
MutationAssessor
Benign
L;L
MutationTaster
Benign
D;D
PrimateAI
Uncertain
T
PROVEAN
Benign
N;N
REVEL
Uncertain
Sift
Uncertain
D;D
Sift4G
Uncertain
D;D
Polyphen
D;D
Vest4
MVP
MPC
ClinPred
T
GERP RS
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at