1-216327637-C-T

Variant names:

Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PS1PM2PP3_StrongPP5_Very_Strong

The NM_206933.4(USH2A):c.802G>A(p.Gly268Arg) variant causes a missense change. The variant allele was found at a frequency of 0.0000136 in 1,612,914 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Pathogenic in ClinVar.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

USH2A
NM_206933.4 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:14

Conservation

PhyloP100: 5.49

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 18 ACMG points.

PS1

Transcript NM_206933.4 (USH2A) is affected with MISSENSE_VARIANT having same AA change as one Pathogenic present in ClinVar as 2090409

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.957

PP5

Variant 1-216327637-C-T is Pathogenic according to our data. Variant chr1-216327637-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 48592.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-216327637-C-T is described in Lovd as [Likely_pathogenic]. Variant chr1-216327637-C-T is described in Lovd as [Pathogenic]. Variant chr1-216327637-C-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
USH2A	NM_206933.4 link	c.802G>A	p.Gly268Arg	missense_variant	Exon 5 of 72	ENST00000307340.8	NP_996816.3	O75445-1
USH2A	NM_007123.6 link	c.802G>A	p.Gly268Arg	missense_variant	Exon 5 of 21		NP_009054.6	O75445-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
USH2A	ENST00000307340.8 link	c.802G>A	p.Gly268Arg	missense_variant	Exon 5 of 72	1	NM_206933.4	ENSP00000305941.3	O75445-1
USH2A	ENST00000366942.3 link	c.802G>A	p.Gly268Arg	missense_variant	Exon 5 of 21	1		ENSP00000355909.3	O75445-2
USH2A	ENST00000674083.1 link	c.802G>A	p.Gly268Arg	missense_variant	Exon 5 of 73			ENSP00000501296.1	O75445-3

Frequencies

GnomAD3 genomes

AF:

0.0000395

AC:

AN:

152028

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000725

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000159

AC:

AN:

250826

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135552

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000290

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000545

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000882

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000110

AC:

AN:

1460886

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

726744

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000672

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000505

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000810

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000395

AC:

AN:

152028

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74242

show subpopulations

Gnomad4 AFR

AF:

0.0000725

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000974

Hom.:

Bravo

AF:

0.0000453

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:14

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Retinal dystrophy

Pathogenic:4

May 27, 2024

Ophthalmic Genetics Group, Institute of Molecular and Clinical Ophthalmology Basel

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: research

- -

Oct 01, 2023

Dept Of Ophthalmology, Nagoya University

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: research

- -

Feb 05, 2019

Blueprint Genetics

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jan 01, 2020

Institute of Human Genetics, Univ. Regensburg, Univ. Regensburg

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Usher syndrome

Pathogenic:2

Feb 07, 2019

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

proposed classification - variant undergoing re-assessment, contact laboratory -

Apr 28, 2023

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Variant summary: USH2A c.802G>A (p.Gly268Arg) results in a non-conservative amino acid change located in the LamG-like jellyroll fold domain (IPR006558) of the encoded protein sequence. Five of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 1.6e-05 in 250826 control chromosomes. c.802G>A has been reported in the literature as a compound heterozygous genotype in multiple individuals affected with Usher Syndrome (example, Stabej_2012, Bonnet_2016, Neuhaus_2017, Huang_2015, Weisschuh_2020). These data indicate that the variant is very likely to be associated with disease. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publications have been ascertained in the context of this evaluation (PMID: 27460420, 25356976, 28944237, 15325563, 22135276, 32531858, 32637036). Seven clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. All laboratories classified the variant as pathogenic/likely pathogenic. Based on the evidence outlined above, the variant was classified as pathogenic. -

not provided

Pathogenic:2

Dec 08, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: 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 268 of the USH2A protein (p.Gly268Arg). This variant is present in population databases (rs111033280, gnomAD 0.005%). This missense change has been observed in individuals with Usher syndrome (PMID: 25356976, 29490346, 29625443). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 48592). 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 expected to disrupt USH2A protein function with a positive predictive value of 95%. For these reasons, this variant has been classified as Pathogenic. -

Nov 23, 2022

GeneDx

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; This variant is associated with the following publications: (PMID: 27460420, 30245029, 32531858, 25356976, 20052763, 10729113, 26338283, 15325563, 28944237, 32319668, 31054281, 31456290, 33598457, 29625443, 32188678, 33124170, 32675063, 33090715, 32037395, 32749464, 27318125, 24944099, 18273898, 33535592, 22135276, 29490346, 35266249) -

Retinitis pigmentosa 39

Pathogenic:2

Nov 04, 2023

Genome-Nilou Lab

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Mar 20, 2024

Baylor Genetics

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Usher syndrome type 2A

Pathogenic:2

Nov 04, 2023

Genome-Nilou Lab

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jul 14, 2020

Natera, Inc.

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Usher syndrome type 2

Pathogenic:1

Jun 23, 2019

Sharon lab, Hadassah-Hebrew University Medical Center

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: research

- -

Usher syndrome type 2A;C3151138:Retinitis pigmentosa 39

Pathogenic:1

Jun 29, 2017

Counsyl

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.92

BayesDel_addAF

Pathogenic

0.32

BayesDel_noAF

Pathogenic

0.39

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.61

D;.

Eigen

Uncertain

0.67

Eigen_PC

Uncertain

0.62

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.90

D;D

M_CAP

Pathogenic

0.57

MetaRNN

Pathogenic

0.96

D;D

MetaSVM

Pathogenic

0.86

MutationAssessor

Pathogenic

2.9

M;M

PrimateAI

Uncertain

0.65

PROVEAN

Pathogenic

-5.2

D;D

REVEL

Pathogenic

0.90

Sift

Pathogenic

0.0

D;D

Sift4G

Pathogenic

0.0

D;D

Polyphen

1.0

D;D

Vest4

0.92

MutPred

0.83

Gain of MoRF binding (P = 0.0417);Gain of MoRF binding (P = 0.0417);

MVP

0.93

MPC

0.25

ClinPred

0.99

GERP RS

4.6

Varity_R

0.80

gMVP

0.97

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over