rs111033336

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP4

The NM_000260.4(MYO7A):​c.6173A>G​(p.Lys2058Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000209 in 1,580,882 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 (★★). Synonymous variant affecting the same amino acid position (i.e. K2058K) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000022 ( 0 hom. )

Consequence

MYO7A
NM_000260.4 missense

Scores

1
6
12

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 8.87

Publications

0 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: Likely_benign. The variant received -1 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.4106263).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MYO7ANM_000260.4 linkc.6173A>G p.Lys2058Arg 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.6173A>G p.Lys2058Arg missense_variant Exon 45 of 49 1 NM_000260.4 ENSP00000386331.3
MYO7AENST00000458637.6 linkc.6059A>G p.Lys2020Arg missense_variant Exon 45 of 49 1 ENSP00000392185.2
MYO7AENST00000409619.6 linkc.6026A>G p.Lys2009Arg missense_variant Exon 46 of 50 1 ENSP00000386635.2
MYO7AENST00000458169.2 linkc.3599A>G p.Lys1200Arg missense_variant Exon 25 of 29 1 ENSP00000417017.2
MYO7AENST00000670577.1 linkn.*745A>G non_coding_transcript_exon_variant Exon 28 of 32 ENSP00000499323.1
MYO7AENST00000670577.1 linkn.*745A>G 3_prime_UTR_variant Exon 28 of 32 ENSP00000499323.1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152160
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.0000217
AC:
31
AN:
1428722
Hom.:
0
Cov.:
31
AF XY:
0.0000184
AC XY:
13
AN XY:
707502
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32792
American (AMR)
AF:
0.00
AC:
0
AN:
39722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25484
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37836
South Asian (SAS)
AF:
0.00
AC:
0
AN:
81102
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51146
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5738
European-Non Finnish (NFE)
AF:
0.0000283
AC:
31
AN:
1095680
Other (OTH)
AF:
0.00
AC:
0
AN:
59222
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.462
Heterozygous variant carriers
0
3
5
8
10
13
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:
0.0000131
AC:
2
AN:
152160
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74334
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41440
American (AMR)
AF:
0.00
AC:
0
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68016
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000113

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

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

- -

not provided Uncertain:1
Aug 22, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces lysine, which is basic and polar, with arginine, which is basic and polar, at codon 2058 of the MYO7A protein (p.Lys2058Arg). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with MYO7A-related conditions. ClinVar contains an entry for this variant (Variation ID: 43320). 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. 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.077
BayesDel_addAF
Uncertain
0.032
T
BayesDel_noAF
Benign
-0.19
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.32
T;.;.;T
Eigen
Benign
0.12
Eigen_PC
Uncertain
0.29
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.91
D;D;D;D
M_CAP
Benign
0.027
D
MetaRNN
Benign
0.41
T;T;T;T
MetaSVM
Benign
-0.66
T
MutationAssessor
Benign
1.2
L;.;.;.
PhyloP100
8.9
PrimateAI
Uncertain
0.62
T
PROVEAN
Benign
-1.8
N;N;N;N
REVEL
Uncertain
0.33
Sift
Benign
0.20
T;T;T;T
Sift4G
Benign
0.46
T;T;T;T
Polyphen
0.42
B;.;.;.
Vest4
0.59
MutPred
0.39
Loss of methylation at K2058 (P = 0.0167);.;.;.;
MVP
0.74
MPC
0.29
ClinPred
0.97
D
GERP RS
5.2
Varity_R
0.42
gMVP
0.34
Mutation Taster
=46/54
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: rs111033336; hg19: chr11-76922318; API