rs117798425

Positions:

chr1-216097080-T-C

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 1P and 16B. PP3BP6_Very_StrongBS1BS2

The NM_206933.4(USH2A):c.4758+3A>G variant causes a splice donor region, intron change. The variant allele was found at a frequency of 0.000568 in 1,613,506 control chromosomes in the GnomAD database, including 10 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00076 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00055 ( 10 hom. )

Consequence

USH2A
NM_206933.4 splice_donor_region, intron

Scores

Splicing: ADA: 0.9624

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts U:1B:11

Conservation

PhyloP100: 4.49

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 Benign. Variant got -15 ACMG points.

PP3

Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. Scorers claiming Uncertain: max_spliceai. No scorers claiming Benign.

BP6

Variant 1-216097080-T-C is Benign according to our data. Variant chr1-216097080-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 156396.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-216097080-T-C is described in Lovd as [Benign]. Variant chr1-216097080-T-C is described in Lovd as [Likely_benign]. Variant chr1-216097080-T-C is described in Lovd as [Likely_pathogenic]. Variant chr1-216097080-T-C is described in Lovd as [Pathogenic]. Variant chr1-216097080-T-C is described in Lovd as [Pathogenic]. Variant chr1-216097080-T-C is described in Lovd as [Likely_pathogenic].

BS1

Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.000761 (116/152358) while in subpopulation EAS AF= 0.0183 (95/5190). AF 95% confidence interval is 0.0153. There are 0 homozygotes in gnomad4. There are 72 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High Homozygotes in GnomAdExome4 at 10 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
USH2A	NM_206933.4 linkuse as main transcript	c.4758+3A>G		splice_donor_region_variant, intron_variant		ENST00000307340.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
USH2A	ENST00000307340.8 linkuse as main transcript	c.4758+3A>G		splice_donor_region_variant, intron_variant		1	NM_206933.4	P1	O75445-1
USH2A	ENST00000674083.1 linkuse as main transcript	c.4758+3A>G		splice_donor_region_variant, intron_variant					O75445-3

Frequencies

GnomAD3 genomes

AF:

0.000782

AC:

119

AN:

152240

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.0185

Gnomad SAS

AF:

0.00145

Gnomad FIN

AF:

0.0000941

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000162

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.00151

AC:

378

AN:

249948

Hom.:

AF XY:

0.00142

AC XY:

192

AN XY:

135234

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000398

Gnomad EAS exome

AF:

0.0181

Gnomad SAS exome

AF:

0.000786

Gnomad FIN exome

AF:

0.0000463

Gnomad NFE exome

AF:

0.000151

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.000548

AC:

801

AN:

1461148

Hom.:

Cov.:

AF XY:

0.000583

AC XY:

424

AN XY:

726850

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.000459

Gnomad4 EAS exome

AF:

0.0147

Gnomad4 SAS exome

AF:

0.00113

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000612

Gnomad4 OTH exome

AF:

0.000630

GnomAD4 genome

AF:

0.000761

AC:

116

AN:

152358

Hom.:

Cov.:

AF XY:

0.000966

AC XY:

AN XY:

74508

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.0183

Gnomad4 SAS

AF:

0.00103

Gnomad4 FIN

AF:

0.0000941

Gnomad4 NFE

AF:

0.000162

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000283

Hom.:

Bravo

AF:

0.00107

Asia WGS

AF:

0.00520

AC:

AN:

3478

EpiCase

AF:

0.000164

EpiControl

AF:

0.000119

ClinVar

Significance: Benign/Likely benign

Submissions summary: Uncertain:1Benign:11

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:3

Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 31, 2024	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Dec 20, 2018	This variant is associated with the following publications: (PMID: 25445212, 25404053, 30245029, 29625443, 31180159, 31904091, 32090030, 32893482, 33090715) -
Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Jul 01, 2024	USH2A: BS1 -

Usher syndrome type 2A

Benign:3

Benign, no assertion criteria provided	clinical testing	Natera, Inc.	Jun 24, 2020	- -
Likely benign, criteria provided, single submitter	clinical testing	Genome-Nilou Lab	Apr 11, 2023	- -
Likely benign, criteria provided, single submitter	clinical testing	Mendelics	May 28, 2019	- -

not specified

Benign:2

Likely benign, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Aug 23, 2017	- -
Benign, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	Nov 22, 2017	c.4758+3A>G in intron 22 of USH2A: This variant is not expected to have clinical significance because it has been identified in 1.9% (348/18756) of East Asian c hromosomes, including 4 homozygotes, by the Genome Aggregation Database (gnomAD, http://gnomad.broadinstitute.org/; dbSNP rs117798425). ACMG/AMP Criteria applie d: BA1. -

Leber congenital amaurosis

Uncertain:1

Uncertain significance, no assertion criteria provided

clinical testing

Molecular Diagnostics Laboratory, Seoul National University Hospital

Sep 18, 2014

- -

Usher syndrome type 2A;C3151138:Retinitis pigmentosa 39

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Feb 10, 2022

- -

Retinitis pigmentosa 39

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Genome-Nilou Lab

Apr 11, 2023

- -

USH2A-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Aug 26, 2024

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.24

CADD

Benign

DANN

Benign

0.96

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Pathogenic

0.96

dbscSNV1_RF

Pathogenic

0.84

SpliceAI score (max)

0.41

Details are displayed if max score is > 0.2

DS_DL_spliceai

0.41

Position offset: 3

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