rs368049814

Positions:

chr1-215786715-C-T

Variant summary

Our verdict is Pathogenic. Variant got 15 ACMG points: 15P and 0B. PM1PM2PM5PP3PP5_Very_Strong

The NM_206933.4(USH2A):c.10342G>A(p.Glu3448Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000768 in 1,613,840 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 variant affecting the same amino acid position, but resulting in a different missense (i.e. E3448Q) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000078 ( 0 hom. )

Consequence

USH2A
NM_206933.4 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:17

Conservation

PhyloP100: 6.20

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 15 ACMG points.

PM1

In a domain Fibronectin type-III 19 (size 94) in uniprot entity USH2A_HUMAN there are 24 pathogenic changes around while only 8 benign (75%) in NM_206933.4

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr1-215786715-C-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 3249445.Status of the report is no_assertion_criteria_provided, 0 stars.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.833

PP5

Variant 1-215786715-C-T is Pathogenic according to our data. Variant chr1-215786715-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 209203.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-215786715-C-T is described in Lovd as [Pathogenic]. Variant chr1-215786715-C-T is described in Lovd as [Pathogenic]. Variant chr1-215786715-C-T is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
USH2A	NM_206933.4 linkuse as main transcript	c.10342G>A	p.Glu3448Lys	missense_variant	52/72	ENST00000307340.8	NP_996816.3	O75445-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
USH2A	ENST00000307340.8 linkuse as main transcript	c.10342G>A	p.Glu3448Lys	missense_variant	52/72	1	NM_206933.4	ENSP00000305941.3		O75445-1
USH2A	ENST00000674083.1 linkuse as main transcript	c.10342G>A	p.Glu3448Lys	missense_variant	52/73			ENSP00000501296.1		O75445-3

Frequencies

GnomAD3 genomes

AF:

0.0000657

AC:

AN:

152120

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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:

0.000118

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000358

AC:

AN:

251302

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135814

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000616

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000780

AC:

114

AN:

1461720

Hom.:

Cov.:

AF XY:

0.0000715

AC XY:

AN XY:

727156

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000971

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.0000657

AC:

AN:

152120

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74308

show subpopulations

Gnomad4 AFR

AF:

0.0000483

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:

0.000118

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000139

Hom.:

Bravo

AF:

0.0000604

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000165

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000119

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:17

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Pathogenic:6

Likely pathogenic, criteria provided, single submitter	clinical testing	Revvity Omics, Revvity	Aug 30, 2022	- -
Pathogenic, criteria provided, single submitter	clinical testing	Institute of Medical Genetics and Applied Genomics, University Hospital Tübingen	Sep 15, 2021	- -
Likely pathogenic, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	May 01, 2019	- -
Likely pathogenic, criteria provided, single submitter	clinical testing	GeneDx	Dec 26, 2024	In silico analysis indicates that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 31429209, 24265693, 26667666, 28041643, 25412400, 20507924, 27160483, 32188678, 31964843, 36003347, 37734845, 34906470, 24901346, 32037395, 36011334, 35266249, 32675063, 24603341, 28761320, 36819107, 36672815, 37217489, 28981474, 32176120, 38219857, 39425040) -
Likely pathogenic, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Apr 04, 2016	- -
Pathogenic, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 31, 2024	This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 3448 of the USH2A protein (p.Glu3448Lys). This variant is present in population databases (rs368049814, gnomAD 0.008%). This missense change has been observed in individual(s) with retinitis pigmentosa (PMID: 24265693, 26667666, 28761320, 28981474). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 209203). 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) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on USH2A protein function. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. For these reasons, this variant has been classified as Pathogenic. -

Retinitis pigmentosa 39

Pathogenic:3

Pathogenic, criteria provided, single submitter	clinical testing	Baylor Genetics	Mar 27, 2024	- -
Likely pathogenic, criteria provided, single submitter	clinical testing	Genetics and Molecular Pathology, SA Pathology	Apr 21, 2021	- -
Likely pathogenic, criteria provided, single submitter	research	Ocular Genomics Institute, Massachusetts Eye and Ear	Apr 08, 2021	The USH2A c.10342G>A variant was identified in an individual with retinitis pigmentosa with a presumed recessive inheritance pattern. Through a review of available evidence we were able to apply the following criteria: PS1, PM2, PP3. Based on this evidence we have classified this variant as Likely Pathogenic. -

Usher syndrome type 2A

Pathogenic:3

Pathogenic, criteria provided, single submitter	clinical testing	Centre for Genomic Medicine, Manchester, Central Manchester University Hospitals	Feb 01, 2019	- -
Likely pathogenic, no assertion criteria provided	clinical testing	Natera, Inc.	Sep 16, 2020	- -
Pathogenic, criteria provided, single submitter	clinical testing	Baylor Genetics	-	- -

Retinal dystrophy

Pathogenic:2

Pathogenic, criteria provided, single submitter	clinical testing	Blueprint Genetics	Nov 09, 2018	- -
Likely pathogenic, criteria provided, single submitter	clinical testing	Institute of Human Genetics, Univ. Regensburg, Univ. Regensburg	Jan 01, 2016	- -

Usher syndrome

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

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

Dec 03, 2021

Variant summary: USH2A c.10342G>A (p.Glu3448Lys) results in a conservative amino acid change located in the Fibronectin type III domain (IPR003961) of the encoded protein sequence. Three of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 3.6e-05 in 251302 control chromosomes (gnomAD). c.10342G>A has been reported in the literature in multiple compound heterozygous and homozygous individuals affected with Retinitis Pigmentosa and Usher Syndrome (example: McGee_2011, Eisenberger_2013, Iglesias_2014, Maranhao_2014, Comander_2017, Jones_2017, Gao_2021). 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. Eleven ClinVar submitters have assessed the variant since 2014: seven have classified it as likely pathogenic and four as pathogenic. Based on the evidence outlined above, the variant was classified as pathogenic. -

Usher syndrome type 2A;C3151138:Retinitis pigmentosa 39

Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Counsyl

Apr 17, 2018

- -

Retinitis pigmentosa

Pathogenic:1

Likely pathogenic, no assertion criteria provided

research

NIHR Bioresource Rare Diseases, University of Cambridge

Jan 01, 2015

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.25

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.14

Eigen

Uncertain

0.56

Eigen_PC

Uncertain

0.51

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.83

M_CAP

Pathogenic

0.68

MetaRNN

Pathogenic

0.83

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.7

PrimateAI

Benign

0.43

PROVEAN

Benign

-1.9

REVEL

Benign

0.23

Sift

Benign

0.12

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.90

MVP

0.76

MPC

0.23

ClinPred

0.88

GERP RS

4.9

Varity_R

0.15

gMVP

0.63

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.090

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