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GeneBe

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

Scores

2
2
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.611
Variant links:
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]

Genome browser will be placed here

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
MYH8NM_002472.3 linkuse as main transcriptc.3874C>T p.Arg1292Ter stop_gained 29/40 ENST00000403437.2
MYHASNR_125367.1 linkuse as main transcriptn.77-7273G>A intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MYH8ENST00000403437.2 linkuse as main transcriptc.3874C>T p.Arg1292Ter stop_gained 29/405 NM_002472.3 P1
ENST00000399342.6 linkuse as main transcriptn.77-7273G>A intron_variant, non_coding_transcript_variant 3
ENST00000581304.1 linkuse as main transcriptn.53-7273G>A intron_variant, non_coding_transcript_variant 3

Frequencies

GnomAD3 genomes
AF:
0.000303
AC:
46
AN:
151736
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000727
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00715
Gnomad SAS
AF:
0.000208
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.000482
GnomAD3 exomes
AF:
0.000707
AC:
177
AN:
250406
Hom.:
1
AF XY:
0.000598
AC XY:
81
AN XY:
135490
show subpopulations
Gnomad AFR exome
AF:
0.0000618
Gnomad AMR exome
AF:
0.0000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00892
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000440
Gnomad OTH exome
AF:
0.000490
GnomAD4 exome
AF:
0.000164
AC:
239
AN:
1460210
Hom.:
1
Cov.:
32
AF XY:
0.000131
AC XY:
95
AN XY:
726534
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00471
Gnomad4 SAS exome
AF:
0.0000812
Gnomad4 FIN exome
AF:
0.0000192
Gnomad4 NFE exome
AF:
0.00000810
Gnomad4 OTH exome
AF:
0.000513
GnomAD4 genome
AF:
0.000303
AC:
46
AN:
151850
Hom.:
0
Cov.:
32
AF XY:
0.000337
AC XY:
25
AN XY:
74206
show subpopulations
Gnomad4 AFR
AF:
0.0000725
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00717
Gnomad4 SAS
AF:
0.000208
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.000477
Alfa
AF:
0.000394
Hom.:
0
Bravo
AF:
0.000419
ExAC
AF:
0.000593
AC:
72
Asia WGS
AF:
0.00289
AC:
11
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

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 submitterreference populationSoonchunhyang University Bucheon Hospital, Soonchunhyang University Medical CenterMar 18, 2016- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.26
D
BayesDel_noAF
Pathogenic
0.62
Cadd
Pathogenic
37
Dann
Uncertain
1.0
Eigen
Uncertain
0.41
Eigen_PC
Benign
0.20
FATHMM_MKL
Benign
0.60
D
MutationTaster
Benign
1.0
A
Vest4
0.86
GERP RS
4.3

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs150008607; hg19: chr17-10302192; COSMIC: COSV67974521; API