rs996870471
Positions:
Variant summary
Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2PP2PP3_Moderate
The NM_017534.6(MYH2):āc.4010A>Gā(p.His1337Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000547 in 1,461,890 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 (ā ).
Frequency
Genomes: not found (cov: 33)
Exomes š: 0.0000055 ( 0 hom. )
Consequence
MYH2
NM_017534.6 missense
NM_017534.6 missense
Scores
11
5
2
Clinical Significance
Conservation
PhyloP100: 8.01
Genes affected
MYH2 (HGNC:7572): (myosin heavy chain 2) Myosins are actin-based motor proteins that function in the generation of mechanical force in eukaryotic cells. Muscle myosins are heterohexamers composed of 2 myosin heavy chains and 2 pairs of nonidentical myosin light chains. This gene encodes a member of the class II or conventional myosin heavy chains, and functions in skeletal muscle contraction. This gene is found in a cluster of myosin heavy chain genes on chromosome 17. A mutation in this gene results in inclusion body myopathy-3. Multiple alternatively spliced variants, encoding the same protein, have been identified. [provided by RefSeq, Sep 2009]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 5 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
PP2
?
Missense variant where missense usually causes diseases, MYH2
PP3
?
MetaRNN computational evidence supports a deleterious effect, 0.908
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
MYH2 | NM_017534.6 | c.4010A>G | p.His1337Arg | missense_variant | 30/40 | ENST00000245503.10 | |
MYHAS | NR_125367.1 | n.168-40761T>C | intron_variant, non_coding_transcript_variant | ||||
MYH2 | NM_001100112.2 | c.4010A>G | p.His1337Arg | missense_variant | 30/40 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
MYH2 | ENST00000245503.10 | c.4010A>G | p.His1337Arg | missense_variant | 30/40 | 1 | NM_017534.6 | P1 | |
ENST00000399342.6 | n.207-6548T>C | intron_variant, non_coding_transcript_variant | 3 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD3 genomes
?
Cov.:
33
GnomAD4 exome AF: 0.00000547 AC: 8AN: 1461890Hom.: 0 Cov.: 32 AF XY: 0.00000688 AC XY: 5AN XY: 727244
GnomAD4 exome
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AC:
8
AN:
1461890
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Cov.:
32
AF XY:
AC XY:
5
AN XY:
727244
Gnomad4 AFR exome
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GnomAD4 genome ? Cov.: 33
GnomAD4 genome
?
Cov.:
33
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Myopathy, proximal, and ophthalmoplegia Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Jun 25, 2022 | ClinVar contains an entry for this variant (Variation ID: 569652). This variant has not been reported in the literature in individuals affected with MYH2-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces histidine, which is basic and polar, with arginine, which is basic and polar, at codon 1337 of the MYH2 protein (p.His1337Arg). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). 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:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Uncertain
DANN
Uncertain
DEOGEN2
Uncertain
D;D
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Pathogenic
D
M_CAP
Uncertain
D
MetaRNN
Pathogenic
D;D
MetaSVM
Pathogenic
D
MutationAssessor
Pathogenic
H;H
MutationTaster
Benign
D;D;D
PrimateAI
Uncertain
T
PROVEAN
Pathogenic
D;D
REVEL
Pathogenic
Sift
Uncertain
D;D
Sift4G
Benign
T;T
Polyphen
D;D
Vest4
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at