rs80168976

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_002472.3(MYH8):ā€‹c.2652A>Gā€‹(p.Leu884=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00103 in 1,614,042 control chromosomes in the GnomAD database, including 17 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.0056 ( 8 hom., cov: 32)
Exomes š‘“: 0.00055 ( 9 hom. )

Consequence

MYH8
NM_002472.3 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -2.39
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.71).
BP6
Variant 17-10404366-T-C is Benign according to our data. Variant chr17-10404366-T-C is described in ClinVar as [Benign]. Clinvar id is 258718.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-2.39 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00561 (854/152270) while in subpopulation AFR AF= 0.0197 (819/41558). AF 95% confidence interval is 0.0186. There are 8 homozygotes in gnomad4. There are 390 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High AC in GnomAd4 at 854 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MYH8NM_002472.3 linkuse as main transcriptc.2652A>G p.Leu884= synonymous_variant 22/40 ENST00000403437.2
MYHASNR_125367.1 linkuse as main transcriptn.77-1782T>C intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MYH8ENST00000403437.2 linkuse as main transcriptc.2652A>G p.Leu884= synonymous_variant 22/405 NM_002472.3 P1
ENST00000399342.6 linkuse as main transcriptn.77-1782T>C intron_variant, non_coding_transcript_variant 3
ENST00000581304.1 linkuse as main transcriptn.53-1782T>C intron_variant, non_coding_transcript_variant 3

Frequencies

GnomAD3 genomes
AF:
0.00555
AC:
845
AN:
152152
Hom.:
8
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0195
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00144
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000829
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00287
GnomAD3 exomes
AF:
0.00150
AC:
376
AN:
251424
Hom.:
3
AF XY:
0.00108
AC XY:
147
AN XY:
135896
show subpopulations
Gnomad AFR exome
AF:
0.0212
Gnomad AMR exome
AF:
0.000665
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.000652
GnomAD4 exome
AF:
0.000548
AC:
801
AN:
1461772
Hom.:
9
Cov.:
31
AF XY:
0.000496
AC XY:
361
AN XY:
727182
show subpopulations
Gnomad4 AFR exome
AF:
0.0197
Gnomad4 AMR exome
AF:
0.000917
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000464
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000630
Gnomad4 OTH exome
AF:
0.00136
GnomAD4 genome
AF:
0.00561
AC:
854
AN:
152270
Hom.:
8
Cov.:
32
AF XY:
0.00524
AC XY:
390
AN XY:
74454
show subpopulations
Gnomad4 AFR
AF:
0.0197
Gnomad4 AMR
AF:
0.00144
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000622
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00284
Alfa
AF:
0.00270
Hom.:
4
Bravo
AF:
0.00664
Asia WGS
AF:
0.00202
AC:
7
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 31, 2019- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.71
CADD
Benign
4.9
DANN
Benign
0.65

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
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: rs80168976; hg19: chr17-10307683; API