rs202175091

chr1-215782070-G-A

Variant summary

Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PM1 PM2 PM5 PP3_Moderate PP5_Very_Strong

The NM_206933.4(USH2A):c.10712C>T(p.Thr3571Met) variant causes a missense change. The variant allele was found at a frequency of 0.00000929 in 1,613,836 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. T3571A) has been classified as Likely pathogenic.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 33)
  • Exomes 𝑓: 0.0000096 (0 hom.)
• Consequence: USH2A NM_206933.4 missense
• Clinical Significance: Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:16
• Conservation: PhyloP100: 4.86

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]

ACMG classification

Verdict is Pathogenic. Variant got 16 ACMG points.

• PM1: In a hotspot region, there are 4 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 chr1-215782071-T-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 1213947.Status of the report is criteria_provided_single_submitter, 1 stars.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.893
• PP5: Variant 1-215782070-G-A is Pathogenic according to our data. Variant chr1-215782070-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 48355.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-215782070-G-A is described in Lovd as [Likely_pathogenic]. Variant chr1-215782070-G-A is described in Lovd as [Pathogenic]. Variant chr1-215782070-G-A is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
USH2A	NM_206933.4	c.10712C>T	p.Thr3571Met	missense_variant	54/72	ENST00000307340.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
USH2A	ENST00000307340.8	c.10712C>T	p.Thr3571Met	missense_variant	54/72	1	NM_206933.4	P1
USH2A	ENST00000674083.1	c.10712C>T	p.Thr3571Met	missense_variant	54/73

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152146 Hom.: 0 Cov.: 33

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: 0.0000147

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.0000119 AC: 3 AN: 251304 Hom.: 0 AF XY: 0.00000736 AC XY: 1 AN XY: 135806

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: 0.00000880

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000958 AC: 14 AN: 1461690 Hom.: 0 Cov.: 31 AF XY: 0.00000963 AC XY: 7 AN XY: 727154

Gnomad4 AFR exome AF: 0.0000299

Gnomad4 AMR exome AF: 0.0000224

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: 0.00000720

Gnomad4 OTH exome AF: 0.0000331

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152146 Hom.: 0 Cov.: 33 AF XY: 0.0000135 AC XY: 1 AN XY: 74324

Gnomad4 AFR AF: 0.00

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: 0.0000147

Gnomad4 OTH AF: 0.00

Alfa AF: 0.0000249 Hom.: 0

Bravo AF: 0.0000340

ExAC AF: 0.0000165 AC: 2

EpiCase AF: 0.0000545

EpiControl AF: 0.0000593

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:16

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Usher syndrome type 2A Pathogenic:4

Pathogenic, criteria provided, single submitter	clinical testing	Laboratory of Medical Genetics, National & Kapodistrian University of Athens	Oct 01, 2021	PM1, PM2, PP3, PP5 -
Likely pathogenic, criteria provided, single submitter	clinical testing	Genome-Nilou Lab	Nov 04, 2023	- -
Pathogenic, criteria provided, single submitter	clinical testing	Mendelics	May 04, 2022	- -
Likely pathogenic, criteria provided, single submitter	curation	SIB Swiss Institute of Bioinformatics	Apr 16, 2018	This variant is interpreted as a Likely Pathogenic, for Usher syndrome type 2A, Autosomal Recessive inheritance. The following ACMG Tag(s) were applied: PM2 => Absent from controls (or at extremely low frequency if recessive) in Exome Sequencing Project, 1000 Genomes Project, or Exome Aggregation Consortium. PM3 => For recessive disorders, detected in trans with a pathogenic variant. PP3 => Multiple lines of computational evidence support a deleterious effect on the gene or gene product. PP1 => Cosegregation with disease in multiple affected family members in a gene definitively known to cause the disease. -

Retinitis pigmentosa 39 Pathogenic:3

Likely pathogenic, criteria provided, single submitter	clinical testing	Genome-Nilou Lab	Nov 04, 2023	- -
Likely pathogenic, criteria provided, single submitter	research	Ocular Genomics Institute, Massachusetts Eye and Ear	Apr 08, 2021	The USH2A c.10712C>T 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: PM2, PM3, PP1, PP3. Based on this evidence we have classified this variant as Likely Pathogenic. -
Pathogenic, criteria provided, single submitter	clinical testing	Baylor Genetics	Aug 11, 2023	- -

Usher syndrome type 2A;C3151138:Retinitis pigmentosa 39 Pathogenic:2

Pathogenic, criteria provided, single submitter	clinical testing	Counsyl	Apr 04, 2017	- -
Likely pathogenic, criteria provided, single submitter	clinical testing	Fulgent Genetics, Fulgent Genetics	Nov 02, 2021	- -

not provided Pathogenic:2

Pathogenic, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Oct 01, 2021	- -
Pathogenic, criteria provided, single submitter	clinical testing	Invitae	Dec 06, 2023	This sequence change replaces threonine, which is neutral and polar, with methionine, which is neutral and non-polar, at codon 3571 of the USH2A protein (p.Thr3571Met). This variant is present in population databases (rs202175091, gnomAD 0.007%). This missense change has been observed in individual(s) with Usher syndrome type 2 (PMID: 17085681, 21569298, 28653555, 28894305). 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: 48355). 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. For these reasons, this variant has been classified as Pathogenic. -

Usher syndrome Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

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

Jul 28, 2023

Variant summary: USH2A c.10712C>T (p.Thr3571Met) results in a non-conservative amino acid change located in the a fibronectin type III domain (IPR003961) 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 1.2e-05 in 251304 control chromosomes (i.e., 3 heterozygotes; gnomAD v2.1 Exomes dataset). The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. c.10712C>T has been reported in the literature in multiple compound heterozygous and homozygous individuals affected with Usher Syndrome (e.g., Jaijo_2010, Bonnet_2016). These data indicate that the variant is very likely to be associated with disease. The following publications have been ascertained in the context of this evaluation (PMID: 27460420, 19683999). Ten submitters have reported clinical-significance assessments for this variant to ClinVar after 2014. All submitters classified the variant as pathogenic/likely pathogenic. Based on the evidence outlined above, the variant was classified as pathogenic. -

Nonsyndromic genetic hearing loss Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

INGEBI, INGEBI / CONICET

Jul 15, 2021

Based on ACMG/AMP guidelines and Hearing Loss Expert Panel specific criteria: The c.10712 C>T variant (p.T3571M) in USH2A gene has been identified in a singleton (1/16256 alleles) in african population obtained from gnomAD database, meeting PM2 rule. This variant has been identified in trans with at least 10 different pathogenic variants in Usher Syndrome Type 2A applying to PM3_VS and PP4 rules (PMID: 17085681, 17405132, 19737284, 19683999, 21569298, 25252889, 25575603, 27460420, 28653555, 28894305 and this report). The c.10712 C>T variant in trans with p.Thr5035Argfs*142 segregated correctly in a familial case with two Usher Syndrome affected siblings and three unafffected siblings, meeting PP1_Mod rule (PMID: 2525289). Taking all the evidence together: PM2, PM3_VS, PP4, PP1_Mod The c.10712 C>T variant in USH2A gene is classified as Pathogenic for Usher Syndrome type 2A. -

Rare genetic deafness Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Apr 13, 2012

This Thr3571Met variant has been identified in 12 individuals or families with U sher syndrome, 10 of whom were homozygous or compound heterozygous, and was abse nt from over 1000 controls (Jaijo 2010, Bonnet 2011, Aller 2006, Baux 2007, Na kanishi 2009, Greenstein 2012). This data suggests that this variant is likely t o be pathogenic, though additional segregation studies and/or functional analyse s are required to fully establish the pathogenicity of this variant. -

Retinal dystrophy Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Blueprint Genetics

Jul 20, 2019

- -

Retinitis pigmentosa Pathogenic:1

Likely pathogenic, criteria provided, single submitter

research

Ophthalmic Genetics Group, Institute of Molecular and Clinical Ophthalmology Basel

Jul 24, 2023

Clinical significance based on ACMG v2.0 -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.21
BayesDel_addAF	Pathogenic	0.17	D
BayesDel_noAF	Pathogenic	0.18
Cadd	Uncertain	24
Dann	Uncertain	1.0
DEOGEN2	Uncertain	0.59	D
Eigen	Pathogenic	0.72
Eigen_PC	Uncertain	0.62
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Uncertain	0.88	D
M_CAP	Pathogenic	0.41	D
MetaRNN	Pathogenic	0.89	D
MetaSVM	Uncertain	0.042	D
MutationAssessor	Pathogenic	3.5	H
MutationTaster	Benign	1.0	D;D
PrimateAI	Benign	0.47	T
PROVEAN	Uncertain	-4.0	D
REVEL	Uncertain	0.62
Sift	Uncertain	0.0010	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.80
MutPred		0.61		Loss of ubiquitination at K3568 (P = 0.1381);
MVP		0.97
MPC		0.23
ClinPred		0.99	D
GERP RS		4.5
Varity_R		0.34
gMVP		0.73

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

Other links and lift over

dbSNP: rs202175091; hg19: chr1-215955412;