1-216292291-C-T

Position:

chr1-216292291-C-T

Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PM1PM2PM5PP3_StrongPP5_Very_Strong

The NM_206933.4(USH2A):c.1724G>A(p.Cys575Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.00000558 in 1,613,878 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. C575F) has been classified as Uncertain significance.

Frequency

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

Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

USH2A
NM_206933.4 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:8

Conservation

PhyloP100: 6.79

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.

PM1

In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 3 uncertain 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 chr1-216292291-C-G is described in ClinVar as [Pathogenic]. Clinvar id is 2734097.Status of the report is criteria_provided_single_submitter, 1 stars.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.965

PP5

Variant 1-216292291-C-T is Pathogenic according to our data. Variant chr1-216292291-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 552511.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-216292291-C-T is described in Lovd as [Pathogenic]. Variant chr1-216292291-C-T is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
USH2A	NM_206933.4 linkuse as main transcript	c.1724G>A	p.Cys575Tyr	missense_variant	10/72	ENST00000307340.8
USH2A	NM_007123.6 linkuse as main transcript	c.1724G>A	p.Cys575Tyr	missense_variant	10/21

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
USH2A	ENST00000307340.8 linkuse as main transcript	c.1724G>A	p.Cys575Tyr	missense_variant	10/72	1	NM_206933.4	P1	O75445-1
USH2A	ENST00000366942.3 linkuse as main transcript	c.1724G>A	p.Cys575Tyr	missense_variant	10/21	1			O75445-2
USH2A	ENST00000674083.1 linkuse as main transcript	c.1724G>A	p.Cys575Tyr	missense_variant	10/73				O75445-3

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152098

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251322

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135830

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000479

AC:

AN:

1461780

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727184

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000360

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152098

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74290

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000453

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:8

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Usher syndrome type 2A;C3151138:Retinitis pigmentosa 39

Pathogenic:2

Likely pathogenic, criteria provided, single submitter	clinical testing	Counsyl	Jun 14, 2017	- -
Pathogenic, criteria provided, single submitter	clinical testing	Fulgent Genetics, Fulgent Genetics	Aug 20, 2021	- -

Retinitis pigmentosa 39

Pathogenic:2

Likely pathogenic, criteria provided, single submitter	clinical testing	Genome-Nilou Lab	Nov 04, 2023	- -
Pathogenic, criteria provided, single submitter	clinical testing	Baylor Genetics	Feb 29, 2024	- -

Usher syndrome type 2A

Pathogenic:2

Likely pathogenic, criteria provided, single submitter	clinical testing	Genome-Nilou Lab	Nov 04, 2023	- -
Pathogenic, no assertion criteria provided	clinical testing	Natera, Inc.	Sep 16, 2020	- -

not provided

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Invitae

Dec 09, 2023

This sequence change replaces cysteine, which is neutral and slightly polar, with tyrosine, which is neutral and polar, at codon 575 of the USH2A protein (p.Cys575Tyr). This variant is present in population databases (rs483353054, gnomAD 0.003%). This missense change has been observed in individuals with Usher syndrome (PMID: 21569298, 24944099, 25425308, 28894305). ClinVar contains an entry for this variant (Variation ID: 552511). 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 USH2A protein function with a positive predictive value of 95%. This variant disrupts the p.Cys575 amino acid residue in USH2A. Other variant(s) that disrupt this residue have been observed in individuals with USH2A-related conditions (PMID: 15325563), which suggests that this may be a clinically significant amino acid residue. For these reasons, this variant has been classified as Pathogenic. -

Retinal dystrophy

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Blueprint Genetics

Jun 26, 2018

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.94

BayesDel_addAF

Pathogenic

0.47

BayesDel_noAF

Pathogenic

0.52

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.59

D;.

Eigen

Pathogenic

0.73

Eigen_PC

Uncertain

0.53

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Benign

0.85

D;D

M_CAP

Pathogenic

0.74

MetaRNN

Pathogenic

0.97

D;D

MetaSVM

Pathogenic

1.1

MutationAssessor

Pathogenic

4.8

H;H

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.64

PROVEAN

Pathogenic

-9.3

D;D

REVEL

Pathogenic

0.86

Sift

Pathogenic

0.0

D;D

Sift4G

Pathogenic

0.0

D;D

Polyphen

1.0

D;D

Vest4

0.97

MutPred

0.68

Loss of ubiquitination at K573 (P = 0.1083);Loss of ubiquitination at K573 (P = 0.1083);

MVP

0.97

MPC

0.28

ClinPred

1.0

GERP RS

4.8

Varity_R

0.99

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