rs150008607
Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM4BS2
The NM_002472.3(MYH8):c.3874C>T(p.Arg1292Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000177 in 1,612,060 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Variant results in nonsense mediated mRNA decay.
Frequency
Genomes: 𝑓 0.00030 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00016 ( 1 hom. )
Consequence
MYH8
NM_002472.3 stop_gained
NM_002472.3 stop_gained
Scores
2
2
3
Clinical Significance
Conservation
PhyloP100: 0.611
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 -2 ACMG points.
PM4
?
Stoplost variant in NM_002472.3 Downstream stopcodon found after 49 codons.
BS2
?
High AC in GnomAd at 46 AD gene.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
MYH8 | NM_002472.3 | c.3874C>T | p.Arg1292Ter | stop_gained | 29/40 | ENST00000403437.2 | |
MYHAS | NR_125367.1 | n.77-7273G>A | intron_variant, non_coding_transcript_variant |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
MYH8 | ENST00000403437.2 | c.3874C>T | p.Arg1292Ter | stop_gained | 29/40 | 5 | NM_002472.3 | P1 | |
ENST00000399342.6 | n.77-7273G>A | intron_variant, non_coding_transcript_variant | 3 | ||||||
ENST00000581304.1 | n.53-7273G>A | intron_variant, non_coding_transcript_variant | 3 |
Frequencies
GnomAD3 genomes ? AF: 0.000303 AC: 46AN: 151736Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.000707 AC: 177AN: 250406Hom.: 1 AF XY: 0.000598 AC XY: 81AN XY: 135490
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GnomAD4 exome AF: 0.000164 AC: 239AN: 1460210Hom.: 1 Cov.: 32 AF XY: 0.000131 AC XY: 95AN XY: 726534
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Hecht syndrome;C1837245:Carney complex - trismus - pseudocamptodactyly syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | reference population | Soonchunhyang University Bucheon Hospital, Soonchunhyang University Medical Center | Mar 18, 2016 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
Cadd
Pathogenic
Dann
Uncertain
Eigen
Uncertain
Eigen_PC
Benign
FATHMM_MKL
Benign
D
MutationTaster
Benign
A
Vest4
GERP RS
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