chr17-10401363-TG-T
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Variant summary
Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2
The NM_002472.3(MYH8):c.3019delC(p.Gln1007fs) variant causes a frameshift change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000121 in 1,614,050 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Variant results in nonsense mediated mRNA decay.
Frequency
Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00013 ( 0 hom. )
Consequence
MYH8
NM_002472.3 frameshift
NM_002472.3 frameshift
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: 9.63
Genes affected
MYH8 (HGNC:7578): (myosin heavy chain 8) 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 predominantly expressed in fetal skeletal muscle. This gene is found in a cluster of myosin heavy chain genes on chromosome 17. A mutation in this gene results in trismus-pseudocamptodactyly syndrome. [provided by RefSeq, Sep 2009]
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ACMG classification
Classification made for transcript
Verdict is Likely_benign. Variant got -4 ACMG points.
BS2
High AC in GnomAd4 at 6 AD gene.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
MYH8 | NM_002472.3 | c.3019delC | p.Gln1007fs | frameshift_variant | 24/40 | ENST00000403437.2 | NP_002463.2 | |
MYHAS | NR_125367.1 | n.77-4783delG | intron_variant |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
MYH8 | ENST00000403437.2 | c.3019delC | p.Gln1007fs | frameshift_variant | 24/40 | 5 | NM_002472.3 | ENSP00000384330.2 | ||
ENSG00000272736 | ENST00000399342.6 | n.77-4783delG | intron_variant | 3 | ||||||
ENSG00000272736 | ENST00000581304.1 | n.53-4783delG | intron_variant | 3 | ||||||
MYHAS | ENST00000587182.2 | n.65-4783delG | intron_variant | 5 |
Frequencies
GnomAD3 genomes AF: 0.0000394 AC: 6AN: 152160Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.000103 AC: 26AN: 251490Hom.: 0 AF XY: 0.0000883 AC XY: 12AN XY: 135918
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GnomAD4 exome AF: 0.000129 AC: 189AN: 1461890Hom.: 0 Cov.: 34 AF XY: 0.000138 AC XY: 100AN XY: 727244
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GnomAD4 genome AF: 0.0000394 AC: 6AN: 152160Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2AN XY: 74342
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Genetic Services Laboratory, University of Chicago | Apr 21, 2015 | - - |
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Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at