NM_206933.4:c.4758+3A>G

Variant names:

Variant summary

Our verdict is Benign. The variant received -15 ACMG points: 1P and 16B. PP3BP6_Very_StrongBS1BS2

The NM_206933.4(USH2A):c.4758+3A>G variant causes a splice 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. 2/3 splice prediction tools predicting alterations to normal splicing. 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_region, intron

Scores

Splicing: ADA: 0.9623

Clinical Significance

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

Conservation

PhyloP100: 4.49

Publications

10 publications found

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 Gene-Disease associations (from GenCC):

Usher syndrome type 2
Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
Usher syndrome type 2A
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, PanelApp Australia, Labcorp Genetics (formerly Invitae)
retinitis pigmentosa 39
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
retinitis pigmentosa
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

USH2A links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -15 ACMG points.

PP3

Splicing predictors support a deleterious 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 Benign/Likely_benign. ClinVar VariationId is 156396.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

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 the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 10 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
USH2A	NM_206933.4 link	c.4758+3A>G		splice_region_variant, intron_variant	Intron 22 of 71	ENST00000307340.8	NP_996816.3	O75445-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
USH2A	ENST00000307340.8 link	c.4758+3A>G		splice_region_variant, intron_variant	Intron 22 of 71	1	NM_206933.4	ENSP00000305941.3		O75445-1
USH2A	ENST00000674083.1 link	c.4758+3A>G		splice_region_variant, intron_variant	Intron 22 of 72			ENSP00000501296.1		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

GnomAD2 exomes

AF:

0.00151

AC:

378

AN:

249948

AF XY:

0.00142

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 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

African (AFR)

AF:

0.00

AC:

AN:

33450

American (AMR)

AF:

0.0000224

AC:

AN:

44644

Ashkenazi Jewish (ASJ)

AF:

0.000459

AC:

AN:

26122

East Asian (EAS)

AF:

0.0147

AC:

584

AN:

39662

South Asian (SAS)

AF:

0.00113

AC:

AN:

86170

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53360

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000612

AC:

AN:

1111626

Other (OTH)

AF:

0.000630

AC:

AN:

60346

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.490

Heterozygous variant carriers

134

178

223

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000761

AC:

116

AN:

152358

Hom.:

Cov.:

AF XY:

0.000966

AC XY:

AN XY:

74508

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41582

American (AMR)

AF:

0.000196

AC:

AN:

15296

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.0183

AC:

AN:

5190

South Asian (SAS)

AF:

0.00103

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.0000941

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000162

AC:

AN:

68040

Other (OTH)

AF:

0.000473

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.490

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000296

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

Dec 20, 2018

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is associated with the following publications: (PMID: 25445212, 25404053, 30245029, 29625443, 31180159, 31904091, 32090030, 32893482, 33090715) -

Jan 23, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jun 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

USH2A: BS1 -

Usher syndrome type 2A

Benign:3

Apr 11, 2023

Genome-Nilou Lab

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jun 24, 2020

Natera, Inc.

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

May 28, 2019

Mendelics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not specified

Benign:2

Aug 23, 2017

Eurofins Ntd Llc (ga)

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Nov 22, 2017

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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

Sep 18, 2014

Molecular Diagnostics Laboratory, Seoul National University Hospital

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Usher syndrome type 2A;C3151138:Retinitis pigmentosa 39

Benign:1

Feb 10, 2022

Fulgent Genetics, Fulgent Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Retinitis pigmentosa 39

Benign:1

Apr 11, 2023

Genome-Nilou Lab

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

USH2A-related disorder

Benign:1

Aug 26, 2024

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

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

(source)

DANN

Benign

0.96

PhyloP100

4.5

Mutation Taster

=72/28

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over