rs768158580

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM5PP3_Strong

The NM_206933.4(USH2A):​c.3086G>T​(p.Gly1029Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000144 in 1,461,102 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a pathogenic 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. G1029A) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000014 ( 1 hom. )

Consequence

USH2A
NM_206933.4 missense

Scores

14
4
1

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:6

Conservation

PhyloP100: 4.79

Publications

1 publications found
Variant links:
Genes affected
USH2A (HGNC:12601): (usherin) This gene encodes a protein that contains laminin EGF motifs, a pentaxin domain, and many fibronectin type III motifs. The protein is found in the basement membrane, and may be important in development and homeostasis of the inner ear and retina. Mutations within this gene have been associated with Usher syndrome type IIa and retinitis pigmentosa. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2008]
USH2A-AS1 (HGNC:40606): (USH2A antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM5
Other missense variant is known to change same aminoacid residue: Variant chr1-216217458-C-G is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 812457.Status of the report is no_assertion_criteria_provided, 0 stars.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.99

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
USH2ANM_206933.4 linkc.3086G>T p.Gly1029Val missense_variant Exon 15 of 72 ENST00000307340.8 NP_996816.3
USH2ANM_007123.6 linkc.3086G>T p.Gly1029Val missense_variant Exon 15 of 21 NP_009054.6
USH2A-AS1XR_922596.4 linkn.692-7929C>A intron_variant Intron 2 of 3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
USH2AENST00000307340.8 linkc.3086G>T p.Gly1029Val missense_variant Exon 15 of 72 1 NM_206933.4 ENSP00000305941.3

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.0000160
AC:
4
AN:
250340
AF XY:
0.0000148
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000265
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.0000144
AC:
21
AN:
1461102
Hom.:
1
Cov.:
33
AF XY:
0.0000124
AC XY:
9
AN XY:
726856
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33450
American (AMR)
AF:
0.00
AC:
0
AN:
44674
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26104
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39586
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86232
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53390
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.0000189
AC:
21
AN:
1111536
Other (OTH)
AF:
0.00
AC:
0
AN:
60366
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.446
Heterozygous variant carriers
0
2
4
7
9
11
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
Cov.:
32
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Retinitis pigmentosa 39 Uncertain:2
Nov 04, 2023
Genome-Nilou Lab
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Feb 17, 2022
Institute of Human Genetics, University Hospital Muenster
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

ACMG categories: PM2,PP3 -

Usher syndrome type 2A;C3151138:Retinitis pigmentosa 39 Uncertain:1
Jun 20, 2017
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. -

not provided Uncertain:1
Aug 13, 2021
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces glycine with valine at codon 1029 of the USH2A protein (p.Gly1029Val). The glycine residue is highly conserved and there is a moderate physicochemical difference between glycine and valine. This variant is present in population databases (rs768158580, ExAC 0.005%). This missense change has been observed in individual(s) with Usher syndrome (PMID: 24265693). ClinVar contains an entry for this variant (Variation ID: 552518). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). 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. -

Retinal dystrophy Uncertain:1
Jan 01, 2021
Institute of Human Genetics, Univ. Regensburg, Univ. Regensburg
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Usher syndrome type 2A Uncertain:1
Nov 04, 2023
Genome-Nilou Lab
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.61
BayesDel_addAF
Pathogenic
0.33
D
BayesDel_noAF
Pathogenic
0.37
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.43
T;.
Eigen
Pathogenic
0.94
Eigen_PC
Pathogenic
0.81
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.87
D;D
M_CAP
Pathogenic
0.61
D
MetaRNN
Pathogenic
0.99
D;D
MetaSVM
Pathogenic
1.0
D
MutationAssessor
Pathogenic
4.9
H;H
PhyloP100
4.8
PrimateAI
Uncertain
0.52
T
PROVEAN
Pathogenic
-7.0
D;D
REVEL
Pathogenic
0.85
Sift
Pathogenic
0.0
D;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
1.0
D;D
Vest4
0.90
MutPred
0.92
Loss of ubiquitination at K1031 (P = 0.0709);Loss of ubiquitination at K1031 (P = 0.0709);
MVP
0.98
MPC
0.26
ClinPred
0.99
D
GERP RS
4.9
Varity_R
0.89
gMVP
0.87
Mutation Taster
=3/97
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: rs768158580; hg19: chr1-216390800; API