rs111033192

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2PP3_ModeratePP5

The NM_000260.4(MYO7A):​c.5824G>A​(p.Gly1942Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000048 in 1,459,262 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 13/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

MYO7A
NM_000260.4 missense

Scores

15
3
1

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:4U:6

Conservation

PhyloP100: 9.52
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.938
PP5
Variant 11-77207370-G-A is Pathogenic according to our data. Variant chr11-77207370-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 43299.We mark this variant Likely_pathogenic, oryginal submissions are: {Likely_pathogenic=3, Uncertain_significance=5, Pathogenic=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MYO7ANM_000260.4 linkc.5824G>A p.Gly1942Arg missense_variant Exon 42 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.5824G>A p.Gly1942Arg missense_variant Exon 42 of 49 1 NM_000260.4 ENSP00000386331.3 Q13402-1
MYO7AENST00000458637.6 linkc.5710G>A p.Gly1904Arg missense_variant Exon 42 of 49 1 ENSP00000392185.2 Q13402-2
MYO7AENST00000409619.6 linkc.5677G>A p.Gly1893Arg missense_variant Exon 43 of 50 1 ENSP00000386635.2 Q13402-8
MYO7AENST00000458169.2 linkc.3250G>A p.Gly1084Arg missense_variant Exon 22 of 29 1 ENSP00000417017.2 H7C4D8
MYO7AENST00000670577.1 linkn.*422G>A non_coding_transcript_exon_variant Exon 25 of 32 ENSP00000499323.1 A0A590UJ94
MYO7AENST00000670577 linkn.*422G>A 3_prime_UTR_variant Exon 25 of 30 ENSP00000499323.1 A0A590UJ94

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000410
AC:
1
AN:
244052
Hom.:
0
AF XY:
0.00000756
AC XY:
1
AN XY:
132314
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000338
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000480
AC:
7
AN:
1459262
Hom.:
0
Cov.:
33
AF XY:
0.00000827
AC XY:
6
AN XY:
725548
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000702
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:4Uncertain:6
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Pathogenic:2Uncertain:2
Mar 01, 2021
CeGaT Center for Human Genetics Tuebingen
Significance: Likely pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Feb 27, 2019
Revvity Omics, Revvity
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Feb 14, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 1942 of the MYO7A protein (p.Gly1942Arg). 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 individuals with autosomal recessive deafness and/or autosomal recessive Usher syndrome (PMID: 21117948, 27460420, 32853555). ClinVar contains an entry for this variant (Variation ID: 43299). 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 expected to disrupt MYO7A protein function with a positive predictive value of 95%. In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. -

Dec 20, 2022
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Not observed at a significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 25525159, 27460420, 30245029, 21117948, 32853555, 33671976) -

Usher syndrome Pathogenic:1
Dec 31, 2022
SN ONGC Dept of Genetics and Molecular biology Vision Research Foundation
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: research

- -

Usher syndrome type 1;C1832475:Autosomal dominant nonsyndromic hearing loss 11;C1838701:Autosomal recessive nonsyndromic hearing loss 2 Pathogenic:1
Apr 05, 2024
Fulgent Genetics, Fulgent Genetics
Significance: Likely pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Uncertain:1
Mar 01, 2008
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Usher syndrome type 1;C1838701:Autosomal recessive nonsyndromic hearing loss 2 Uncertain:1
Dec 14, 2017
Counsyl
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Usher syndrome type 1B Uncertain:1
Jul 08, 2020
Natera, Inc.
Significance: Uncertain significance
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

MYO7A-related disorder Uncertain:1
-
UNC Molecular Genetics Laboratory, University of North Carolina at Chapel Hill
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: research

MYO7A c.5824G>A (p.G1942R) missense variant has been reported in one family with autosomal recessive nonsyndromic deafness (PMID: 21117948). This variant has also been reported in the compound heterozygous state in one individual with Usher syndrome (PMID: 27460420). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.99
BayesDel_addAF
Pathogenic
0.35
D
BayesDel_noAF
Pathogenic
0.37
CADD
Pathogenic
29
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.87
D;.;.;D
Eigen
Pathogenic
0.94
Eigen_PC
Pathogenic
0.87
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
1.0
D;D;D;D
M_CAP
Pathogenic
0.65
D
MetaRNN
Pathogenic
0.94
D;D;D;D
MetaSVM
Uncertain
0.61
D
MutationAssessor
Pathogenic
3.4
M;.;.;.
PrimateAI
Pathogenic
0.80
T
PROVEAN
Pathogenic
-7.0
D;D;D;D
REVEL
Pathogenic
0.91
Sift
Uncertain
0.0010
D;D;D;D
Sift4G
Uncertain
0.026
D;D;D;D
Polyphen
1.0
D;.;.;.
Vest4
0.97
MutPred
0.74
Gain of MoRF binding (P = 0.0203);.;.;.;
MVP
0.96
MPC
0.51
ClinPred
1.0
D
GERP RS
5.0
Varity_R
0.91
gMVP
0.88

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: rs111033192; hg19: chr11-76918415; COSMIC: COSV68684230; COSMIC: COSV68684230; API