rs111033511

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_000260.4(MYO7A):​c.4619C>A​(p.Ala1540Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict 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. A1540V) has been classified as Benign.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

MYO7A
NM_000260.4 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.433

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 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.10406861).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MYO7ANM_000260.4 linkc.4619C>A p.Ala1540Glu missense_variant Exon 35 of 49 ENST00000409709.9 NP_000251.3 Q13402-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MYO7AENST00000409709.9 linkc.4619C>A p.Ala1540Glu missense_variant Exon 35 of 49 1 NM_000260.4 ENSP00000386331.3 Q13402-1
MYO7AENST00000670577.1 linkn.2459C>A non_coding_transcript_exon_variant Exon 18 of 32 ENSP00000499323.1 A0A590UJ94
MYO7AENST00000458637.6 linkc.4569-64C>A intron_variant Intron 34 of 48 1 ENSP00000392185.2 Q13402-2
MYO7AENST00000409619.6 linkc.4536-64C>A intron_variant Intron 35 of 49 1 ENSP00000386635.2 Q13402-8
MYO7AENST00000458169.2 linkc.2112-64C>A intron_variant Intron 14 of 28 1 ENSP00000417017.2 H7C4D8

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
Data not reliable, filtered out with message: AC0;AS_VQSR
AF:
0.00
AC:
0
AN:
1419168
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
701130
African (AFR)
AF:
0.00
AC:
0
AN:
32638
American (AMR)
AF:
0.00
AC:
0
AN:
39510
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24998
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37790
South Asian (SAS)
AF:
0.00
AC:
0
AN:
80400
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50056
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5530
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1089462
Other (OTH)
AF:
0.00
AC:
0
AN:
58784
GnomAD4 genome
Cov.:
33
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Apr 21, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt MYO7A protein function. This variant has not been reported in the literature in individuals affected with MYO7A-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces alanine, which is neutral and non-polar, with glutamic acid, which is acidic and polar, at codon 1540 of the MYO7A protein (p.Ala1540Glu). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Uncertain
0.016
T
BayesDel_noAF
Benign
-0.21
CADD
Benign
6.8
DANN
Benign
0.95
DEOGEN2
Benign
0.24
T
Eigen
Benign
-0.85
Eigen_PC
Benign
-0.83
FATHMM_MKL
Benign
0.064
N
LIST_S2
Benign
0.44
T
M_CAP
Benign
0.064
D
MetaRNN
Benign
0.10
T
MetaSVM
Benign
-0.73
T
MutationAssessor
Benign
0.0
N
PhyloP100
0.43
PrimateAI
Benign
0.43
T
PROVEAN
Benign
-0.38
N
REVEL
Benign
0.29
Sift
Benign
0.053
T
Sift4G
Benign
0.80
T
Polyphen
0.28
B
Vest4
0.16
MutPred
0.28
Gain of disorder (P = 0.0632);
MVP
0.86
MPC
0.10
ClinPred
0.076
T
GERP RS
1.3
Varity_R
0.12
gMVP
0.29
Mutation Taster
=97/3
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: rs111033511; hg19: chr11-76910630; API