rs55905349

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_StrongBP6BP7BS1BS2

The NM_004999.4(MYO6):​c.2982G>A​(p.Glu994Glu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00667 in 1,613,928 control chromosomes in the GnomAD database, including 55 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0048 ( 5 hom., cov: 32)
Exomes 𝑓: 0.0069 ( 50 hom. )

Consequence

MYO6
NM_004999.4 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:9

Conservation

PhyloP100: 1.35

Publications

4 publications found
Variant links:
Genes affected
MYO6 (HGNC:7605): (myosin VI) This gene encodes a reverse-direction motor protein that moves toward the minus end of actin filaments and plays a role in intracellular vesicle and organelle transport. The protein consists of a motor domain containing an ATP- and an actin-binding site and a globular tail which interacts with other proteins. This protein maintains the structural integrity of inner ear hair cells and mutations in this gene cause non-syndromic autosomal dominant and recessive hearing loss. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Jul 2014]
MYO6 Gene-Disease associations (from GenCC):
  • autosomal dominant nonsyndromic hearing loss 22
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), PanelApp Australia
  • nonsyndromic genetic hearing loss
    Inheritance: AD, AR Classification: DEFINITIVE, MODERATE Submitted by: ClinGen, G2P
  • autosomal recessive nonsyndromic hearing loss 37
    Inheritance: AR Classification: STRONG, MODERATE Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • autosomal dominant nonsyndromic hearing loss
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • progressive sensorineural hearing loss-hypertrophic cardiomyopathy syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • hearing loss, autosomal recessive
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.52).
BP6
Variant 6-75892565-G-A is Benign according to our data. Variant chr6-75892565-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 45151.
BP7
Synonymous conserved (PhyloP=1.35 with no splicing effect.
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00482 (734/152304) while in subpopulation NFE AF = 0.00801 (545/68000). AF 95% confidence interval is 0.00746. There are 5 homozygotes in GnomAd4. There are 334 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 5 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MYO6NM_004999.4 linkc.2982G>A p.Glu994Glu synonymous_variant Exon 28 of 35 ENST00000369977.8 NP_004990.3 Q9UM54-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MYO6ENST00000369977.8 linkc.2982G>A p.Glu994Glu synonymous_variant Exon 28 of 35 1 NM_004999.4 ENSP00000358994.3 Q9UM54-1

Frequencies

GnomAD3 genomes
AF:
0.00484
AC:
736
AN:
152186
Hom.:
5
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00125
Gnomad AMI
AF:
0.00219
Gnomad AMR
AF:
0.00262
Gnomad ASJ
AF:
0.00230
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00207
Gnomad FIN
AF:
0.00546
Gnomad MID
AF:
0.0316
Gnomad NFE
AF:
0.00803
Gnomad OTH
AF:
0.00479
GnomAD2 exomes
AF:
0.00526
AC:
1323
AN:
251464
AF XY:
0.00542
show subpopulations
Gnomad AFR exome
AF:
0.00148
Gnomad AMR exome
AF:
0.00318
Gnomad ASJ exome
AF:
0.00496
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.00531
Gnomad NFE exome
AF:
0.00816
Gnomad OTH exome
AF:
0.00554
GnomAD4 exome
AF:
0.00686
AC:
10034
AN:
1461624
Hom.:
50
Cov.:
31
AF XY:
0.00676
AC XY:
4912
AN XY:
727122
show subpopulations
African (AFR)
AF:
0.00170
AC:
57
AN:
33470
American (AMR)
AF:
0.00356
AC:
159
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00543
AC:
142
AN:
26136
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39698
South Asian (SAS)
AF:
0.00186
AC:
160
AN:
86240
European-Finnish (FIN)
AF:
0.00588
AC:
314
AN:
53416
Middle Eastern (MID)
AF:
0.0126
AC:
70
AN:
5552
European-Non Finnish (NFE)
AF:
0.00789
AC:
8772
AN:
1112008
Other (OTH)
AF:
0.00595
AC:
359
AN:
60380
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.476
Heterozygous variant carriers
0
611
1222
1832
2443
3054
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
330
660
990
1320
1650
<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:
0.00482
AC:
734
AN:
152304
Hom.:
5
Cov.:
32
AF XY:
0.00448
AC XY:
334
AN XY:
74480
show subpopulations
African (AFR)
AF:
0.00125
AC:
52
AN:
41580
American (AMR)
AF:
0.00261
AC:
40
AN:
15300
Ashkenazi Jewish (ASJ)
AF:
0.00230
AC:
8
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00187
AC:
9
AN:
4824
European-Finnish (FIN)
AF:
0.00546
AC:
58
AN:
10626
Middle Eastern (MID)
AF:
0.0340
AC:
10
AN:
294
European-Non Finnish (NFE)
AF:
0.00801
AC:
545
AN:
68000
Other (OTH)
AF:
0.00474
AC:
10
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.498
Heterozygous variant carriers
0
40
80
120
160
200
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.00708
Hom.:
2
Bravo
AF:
0.00463
Asia WGS
AF:
0.00173
AC:
6
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:9
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Benign:4
Jul 17, 2019
Athena Diagnostics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Sep 01, 2024
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

MYO6: BP4, BP7, BS2 -

Jan 29, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jul 25, 2019
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is associated with the following publications: (PMID: 11167014) -

not specified Benign:3
Dec 29, 2016
Eurofins Ntd Llc (ga)
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Mar 16, 2012
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Glu994Glu in exon 28 of MYO6: This variant is not expected to have clinical sign ificance because it does not alter an amino acid residue, is not located within the splice consensus sequence, has been identified in 0.8% (57/7020) of European American chromosomes and 0.16% (6/3738) of African American chromosomes in a br oad population by the NHLBI Exome sequencing project (http://evs.gs.washington.e du/EVS/ ; dbSNP rs55905349) and is reported as benign in one publication (Ahituv 2000). -

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

- -

Autosomal recessive nonsyndromic hearing loss 37 Uncertain:1
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance:Uncertain significance
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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Inborn genetic diseases Benign:1
May 31, 2023
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Autosomal dominant nonsyndromic hearing loss 22 Benign:1
Jan 13, 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.52
CADD
Benign
1.9
DANN
Benign
0.39
PhyloP100
1.4
RBP_binding_hub_radar
1.1
RBP_regulation_power_radar
3.9
Mutation Taster
=100/0
polymorphism

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: rs55905349; hg19: chr6-76602282; API