rs8069834

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_002472.3(MYH8):​c.5074T>C​(p.Trp1692Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.562 in 1,613,742 control chromosomes in the GnomAD database, including 263,923 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.59 ( 27438 hom., cov: 30)
Exomes 𝑓: 0.56 ( 236485 hom. )

Consequence

MYH8
NM_002472.3 missense

Scores

18

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: 0.738

Publications

28 publications found
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]
MYHAS (HGNC:50609): (myosin heavy chain gene cluster antisense RNA) Predicted to enable primary miRNA binding activity. Predicted to be involved in response to muscle activity and skeletal muscle fiber development. Predicted to act upstream of or within with a positive effect on gene expression. Predicted to be located in cytoplasm and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=1.2877016E-6).
BP6
Variant 17-10394341-A-G is Benign according to our data. Variant chr17-10394341-A-G is described in ClinVar as Benign. ClinVar VariationId is 129678.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.717 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MYH8NM_002472.3 linkc.5074T>C p.Trp1692Arg missense_variant Exon 35 of 40 ENST00000403437.2 NP_002463.2 P13535
MYHASNR_125367.1 linkn.76+11134A>G intron_variant Intron 1 of 10

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MYH8ENST00000403437.2 linkc.5074T>C p.Trp1692Arg missense_variant Exon 35 of 40 5 NM_002472.3 ENSP00000384330.2 P13535

Frequencies

GnomAD3 genomes
AF:
0.588
AC:
89225
AN:
151748
Hom.:
27416
Cov.:
30
show subpopulations
Gnomad AFR
AF:
0.724
Gnomad AMI
AF:
0.518
Gnomad AMR
AF:
0.512
Gnomad ASJ
AF:
0.543
Gnomad EAS
AF:
0.133
Gnomad SAS
AF:
0.344
Gnomad FIN
AF:
0.519
Gnomad MID
AF:
0.585
Gnomad NFE
AF:
0.588
Gnomad OTH
AF:
0.610
GnomAD2 exomes
AF:
0.500
AC:
125849
AN:
251466
AF XY:
0.499
show subpopulations
Gnomad AFR exome
AF:
0.732
Gnomad AMR exome
AF:
0.395
Gnomad ASJ exome
AF:
0.542
Gnomad EAS exome
AF:
0.113
Gnomad FIN exome
AF:
0.523
Gnomad NFE exome
AF:
0.591
Gnomad OTH exome
AF:
0.543
GnomAD4 exome
AF:
0.559
AC:
817696
AN:
1461876
Hom.:
236485
Cov.:
95
AF XY:
0.554
AC XY:
403049
AN XY:
727234
show subpopulations
African (AFR)
AF:
0.734
AC:
24587
AN:
33480
American (AMR)
AF:
0.413
AC:
18488
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.540
AC:
14120
AN:
26136
East Asian (EAS)
AF:
0.151
AC:
5979
AN:
39700
South Asian (SAS)
AF:
0.359
AC:
30938
AN:
86258
European-Finnish (FIN)
AF:
0.534
AC:
28508
AN:
53420
Middle Eastern (MID)
AF:
0.566
AC:
3264
AN:
5764
European-Non Finnish (NFE)
AF:
0.592
AC:
658726
AN:
1112000
Other (OTH)
AF:
0.548
AC:
33086
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.504
Heterozygous variant carriers
0
25825
51650
77474
103299
129124
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
17744
35488
53232
70976
88720
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.588
AC:
89296
AN:
151866
Hom.:
27438
Cov.:
30
AF XY:
0.575
AC XY:
42635
AN XY:
74192
show subpopulations
African (AFR)
AF:
0.723
AC:
29936
AN:
41382
American (AMR)
AF:
0.512
AC:
7809
AN:
15248
Ashkenazi Jewish (ASJ)
AF:
0.543
AC:
1882
AN:
3468
East Asian (EAS)
AF:
0.134
AC:
689
AN:
5156
South Asian (SAS)
AF:
0.344
AC:
1655
AN:
4816
European-Finnish (FIN)
AF:
0.519
AC:
5461
AN:
10528
Middle Eastern (MID)
AF:
0.575
AC:
169
AN:
294
European-Non Finnish (NFE)
AF:
0.588
AC:
39942
AN:
67956
Other (OTH)
AF:
0.608
AC:
1283
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
1780
3560
5341
7121
8901
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
732
1464
2196
2928
3660
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.590
Hom.:
17474
Bravo
AF:
0.597
TwinsUK
AF:
0.598
AC:
2219
ALSPAC
AF:
0.592
AC:
2282
ESP6500AA
AF:
0.721
AC:
3176
ESP6500EA
AF:
0.583
AC:
5013
ExAC
AF:
0.509
AC:
61857
Asia WGS
AF:
0.281
AC:
983
AN:
3478
EpiCase
AF:
0.600
EpiControl
AF:
0.597

ClinVar

Significance: Benign
Submissions summary: Benign:8
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:4
Aug 15, 2013
Genetic Services Laboratory, University of Chicago
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Clinical Genetics, Academic Medical Center
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Hecht syndrome Benign:2
Sep 05, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

not provided Benign:2
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Sep 05, 2019
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.044
BayesDel_addAF
Benign
-0.64
T
BayesDel_noAF
Benign
-0.55
CADD
Benign
7.4
DANN
Benign
0.77
DEOGEN2
Benign
0.14
T
Eigen
Benign
-1.2
Eigen_PC
Benign
-0.88
FATHMM_MKL
Benign
0.34
N
LIST_S2
Benign
0.18
T
MetaRNN
Benign
0.0000013
T
MetaSVM
Benign
-0.89
T
MutationAssessor
Benign
-4.2
N
PhyloP100
0.74
PrimateAI
Benign
0.36
T
PROVEAN
Benign
5.3
N
REVEL
Benign
0.18
Sift
Benign
1.0
T
Sift4G
Benign
1.0
T
Polyphen
0.0
B
Vest4
0.031
MutPred
0.15
Gain of disorder (P = 0.0122);
MPC
0.35
ClinPred
0.0038
T
GERP RS
1.8
Varity_R
0.052
gMVP
0.33
Mutation Taster
=91/9
polymorphism (auto)

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

Other links and lift over

dbSNP: rs8069834; hg19: chr17-10297658; COSMIC: COSV67960003; API