rs762258869

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM1BP4

The NM_000260.4(MYO7A):​c.6092G>A​(p.Arg2031Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000157 in 1,592,984 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R2031W) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

MYO7A
NM_000260.4 missense

Scores

10
9

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 4.57

Publications

3 publications found
Variant links:
Genes affected
MYO7A (HGNC:7606): (myosin VIIA) This gene is a member of the myosin gene family. Myosins are mechanochemical proteins characterized by the presence of a motor domain, an actin-binding domain, a neck domain that interacts with other proteins, and a tail domain that serves as an anchor. This gene encodes an unconventional myosin with a very short tail. Defects in this gene are associated with the mouse shaker-1 phenotype and the human Usher syndrome 1B which are characterized by deafness, reduced vestibular function, and (in human) retinal degeneration. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2008]
MYO7A Gene-Disease associations (from GenCC):
  • nonsyndromic genetic hearing loss
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • autosomal recessive nonsyndromic hearing loss 2
    Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, Ambry Genetics, G2P
  • Usher syndrome type 1
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Orphanet, PanelApp Australia
  • Usher syndrome type 1B
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
  • autosomal dominant nonsyndromic hearing loss 11
    Inheritance: AD Classification: STRONG, MODERATE Submitted by: Ambry Genetics, PanelApp Australia, Labcorp Genetics (formerly Invitae)
  • autosomal dominant nonsyndromic hearing loss
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • hearing loss, autosomal recessive
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • Usher syndrome type 2
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 9 uncertain in NM_000260.4
BP4
Computational evidence support a benign effect (MetaRNN=0.28585193).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MYO7ANM_000260.4 linkc.6092G>A p.Arg2031Gln missense_variant Exon 45 of 49 ENST00000409709.9 NP_000251.3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MYO7AENST00000409709.9 linkc.6092G>A p.Arg2031Gln missense_variant Exon 45 of 49 1 NM_000260.4 ENSP00000386331.3
MYO7AENST00000458637.6 linkc.5978G>A p.Arg1993Gln missense_variant Exon 45 of 49 1 ENSP00000392185.2
MYO7AENST00000409619.6 linkc.5945G>A p.Arg1982Gln missense_variant Exon 46 of 50 1 ENSP00000386635.2
MYO7AENST00000458169.2 linkc.3518G>A p.Arg1173Gln missense_variant Exon 25 of 29 1 ENSP00000417017.2
MYO7AENST00000670577.1 linkn.*664G>A non_coding_transcript_exon_variant Exon 28 of 32 ENSP00000499323.1
MYO7AENST00000670577.1 linkn.*664G>A 3_prime_UTR_variant Exon 28 of 32 ENSP00000499323.1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152188
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000329
AC:
7
AN:
212904
AF XY:
0.0000261
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000190
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000421
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000146
AC:
21
AN:
1440796
Hom.:
0
Cov.:
31
AF XY:
0.0000168
AC XY:
12
AN XY:
714426
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33124
American (AMR)
AF:
0.00
AC:
0
AN:
41896
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25624
East Asian (EAS)
AF:
0.0000776
AC:
3
AN:
38680
South Asian (SAS)
AF:
0.00
AC:
0
AN:
82142
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51836
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5738
European-Non Finnish (NFE)
AF:
0.0000163
AC:
18
AN:
1102144
Other (OTH)
AF:
0.00
AC:
0
AN:
59612
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.496
Heterozygous variant carriers
0
2
3
5
6
8
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000263
AC:
4
AN:
152188
Hom.:
0
Cov.:
32
AF XY:
0.0000404
AC XY:
3
AN XY:
74334
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41446
American (AMR)
AF:
0.00
AC:
0
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10630
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
68014
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.513
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.0000332
AC:
4

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:2
Oct 22, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 2031 of the MYO7A protein (p.Arg2031Gln). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This missense change has been observed in individual(s) with deafness (PMID: 30733538). ClinVar contains an entry for this variant (Variation ID: 229010). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt MYO7A protein function with a negative predictive value of 95%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Aug 08, 2024
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Reported in a patient with hearing loss in published literature (PMID: 30733538); In silico analysis indicates that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 30733538) -

not specified Uncertain:1
May 28, 2015
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.Arg2031Gln variant in MYO7A has not been previously reported in individual s with hearing loss or Usher syndrome, but has been identified in 1/18592 Europe an chromosomes and 1/2270 East Asian chromosomes by the Exome Aggregation Consor tium (ExAC, http://exac.broadinstitute.org). Computational prediction tools do n ot provide strong support for or against an impact to the protein. In summary, t he clinical significance of the p.Arg2031Gln variant is uncertain. -

Usher syndrome type 1;C1838701:Autosomal recessive nonsyndromic hearing loss 2 Uncertain:1
Dec 28, 2016
Counsyl
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -

Usher syndrome type 1B Uncertain:1
Sep 16, 2020
Natera, Inc.
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Uncertain
0.065
T
BayesDel_noAF
Benign
-0.14
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.44
T;.;.;T
Eigen
Uncertain
0.24
Eigen_PC
Uncertain
0.27
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.95
D;D;D;D
M_CAP
Benign
0.067
D
MetaRNN
Benign
0.29
T;T;T;T
MetaSVM
Benign
-0.35
T
MutationAssessor
Benign
1.9
L;.;.;.
PhyloP100
4.6
PrimateAI
Uncertain
0.69
T
PROVEAN
Uncertain
-2.4
N;N;N;N
REVEL
Uncertain
0.44
Sift
Benign
0.098
T;T;T;T
Sift4G
Benign
0.27
T;T;T;T
Polyphen
0.95
P;.;.;.
Vest4
0.74
MutPred
0.50
Loss of ubiquitination at K2028 (P = 0.0653);.;.;.;
MVP
0.86
MPC
0.15
ClinPred
0.21
T
GERP RS
3.7
Varity_R
0.53
gMVP
0.49
Mutation Taster
=48/52
disease causing

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: rs762258869; hg19: chr11-76922237; API