1-215680378-T-C

Position:

chr1-215680378-T-C

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1_ModeratePM2PP5_Very_Strong

The NM_206933.4(USH2A):c.12067-2A>G variant causes a splice acceptor change. The variant allele was found at a frequency of 0.0000224 in 1,608,340 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Pathogenic (★★).

Frequency

Genomes: 𝑓 0.000014 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

USH2A
NM_206933.4 splice_acceptor

Scores

Splicing: ADA: 1.000

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:18

Conservation

PhyloP100: 6.49

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 Pathogenic. Variant got 12 ACMG points.

PVS1

Splicing +-2 bp (donor or acceptor) variant, product NOT destroyed by NMD, known LOF gene, truncates exone, which is 0.014542892 fraction of the gene. No cryptic splice site detected. Exon removal is inframe change.

PM2

Very rare variant in population databases, with high coverage;

PP5

Variant 1-215680378-T-C is Pathogenic according to our data. Variant chr1-215680378-T-C is described in ClinVar as [Pathogenic]. Clinvar id is 48390.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-215680378-T-C is described in Lovd as [Pathogenic]. Variant chr1-215680378-T-C 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.12067-2A>G		splice_acceptor_variant		ENST00000307340.8	NP_996816.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
USH2A	ENST00000307340.8 linkuse as main transcript	c.12067-2A>G		splice_acceptor_variant		1	NM_206933.4	ENSP00000305941	P1	O75445-1
USH2A	ENST00000674083.1 linkuse as main transcript	c.12067-2A>G		splice_acceptor_variant				ENSP00000501296		O75445-3

Frequencies

GnomAD3 genomes

AF:

0.0000136

AC:

AN:

146810

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000141

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:

0.0000841

AC:

AN:

249584

Hom.:

AF XY:

0.0000444

AC XY:

AN XY:

135074

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000405

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:

0.00000890

Gnomad OTH exome

AF:

0.000987

GnomAD4 exome

AF:

0.0000233

AC:

AN:

1461530

Hom.:

Cov.:

AF XY:

0.0000220

AC XY:

AN XY:

727086

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000380

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000720

Gnomad4 OTH exome

AF:

0.000132

GnomAD4 genome

AF:

0.0000136

AC:

AN:

146810

Hom.:

Cov.:

AF XY:

0.0000281

AC XY:

AN XY:

71174

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000141

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

Alfa

AF:

0.0000887

Hom.:

Bravo

AF:

0.0000567

ExAC

AF:

0.0000659

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:18

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Pathogenic:5

Pathogenic, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 25, 2024	This sequence change affects an acceptor splice site in intron 61 of the USH2A gene. It is expected to disrupt RNA splicing. Variants that disrupt the donor or acceptor splice site typically lead to a loss of protein function (PMID: 16199547), and loss-of-function variants in USH2A are known to be pathogenic (PMID: 10729113, 10909849, 20507924, 25649381). This variant is present in population databases (rs397517978, gnomAD 0.04%). Disruption of this splice site has been observed in individual(s) with Usher syndrome (PMID: 18452394, 22004887, 25404053, 28981474). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 48390). 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. -
Pathogenic, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	May 10, 2016	- -
Pathogenic, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Oct 01, 2021	- -
Pathogenic, criteria provided, single submitter	clinical testing	Revvity Omics, Revvity	Oct 12, 2020	- -
Pathogenic, criteria provided, single submitter	clinical testing	GeneDx	Oct 19, 2023	Canonical splice site variant predicted to result in an in-frame loss of the adjacent exon in a gene for which loss of function is a known mechanism of disease; This variant is associated with the following publications: (PMID: 32531858, 34315337, 25525159, 25404053, 28981474, 26850479, 29490346, 30190494, 31456290, 34426522, 31589614, 32037395, 18641288, 22004887, 34948090, 34148116, 35266249, 36785559, 36819107, 36875754, 27460420, 36460718, 36979683, 37287646, 18452394) -

Usher syndrome type 2A

Pathogenic:5

Pathogenic, criteria provided, single submitter	clinical testing	Myriad Genetics, Inc.	Oct 01, 2021	NM_206933.2(USH2A):c.12067-2A>G is a canonical splice variant classified as pathogenic in the context of USH2A-related disorders. c.12067-2A>G has been observed in cases with relevant disease (PMID: 27460420, 18452394, 22004887). Functional assessments of this variant are not available in the literature. c.12067-2A>G has been observed in population frequency databases (gnomAD: AMR 0.04%). In summary, NM_206933.2(USH2A):c.12067-2A>G is a canonical splice variant in a gene where loss of function is a known mechanism of disease, is predicted to disrupt protein function, and has been observed more frequently in cases with the relevant disease than in healthy populations. Please note: this variant was assessed in the context of healthy population screening. -
Pathogenic, criteria provided, single submitter	research	Laboratory of Prof. Karen Avraham, Tel Aviv University	Jun 10, 2024	Pathogenic by Deafness Variation Database based and by ClinVar many entries -
Pathogenic, criteria provided, single submitter	clinical testing	Genome-Nilou Lab	Apr 11, 2023	- -
Pathogenic, no assertion criteria provided	clinical testing	Natera, Inc.	Sep 16, 2020	- -
Pathogenic, criteria provided, single submitter	clinical testing	3billion	Sep 01, 2022	The variant is observed at an extremely low frequency in the gnomAD v2.1.1 dataset (total allele frequency: 0.008%). Canonical splice site is predicted to alter splicing and result in a loss or disruption of normal protein function. Multiple pathogenic loss-of-function variants are reported downstream of the variant. The variant has been reported at least twice as pathogenic with clinical assertions and evidence for the classification (ClinVar ID: VCV000048390 / 3billion dataset). Therefore, this variant is classified as Pathogenic according to the recommendation of ACMG/AMP guideline. -

Retinitis pigmentosa 39

Pathogenic:3

Pathogenic, criteria provided, single submitter	clinical testing	Genome-Nilou Lab	Apr 11, 2023	- -
Pathogenic, criteria provided, single submitter	clinical testing	Baylor Genetics	Mar 18, 2024	- -
Pathogenic, criteria provided, single submitter	research	Ocular Genomics Institute, Massachusetts Eye and Ear	Apr 08, 2021	The USH2A c.12067-2A>G 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: PVS1, PM2, PM3, PP1, PP3. Based on this evidence we have classified this variant as Pathogenic. -

Usher syndrome type 2

Pathogenic:1

Pathogenic, no assertion criteria provided

research

Sharon lab, Hadassah-Hebrew University Medical Center

Jun 23, 2019

- -

Usher syndrome type 2A;C3151138:Retinitis pigmentosa 39

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Oct 31, 2018

- -

Rare genetic deafness

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

May 13, 2013

The 12067-2A>G variant in USH2A has been reported in five individuals with Usher syndrome type 2, one individual with autosomal recessive retinitis pigmentosa a nd one individual with congenital sensorineural hearing loss (Sandberg 2008, Aus lender 2008, Garcia-Garcia 2011, LMM unpublished data). Four of these probands w ere homozygous or compound heterozygous. Segregation of this variant with disea se was demonstrated in two affected family members (Auslender 2008). In addition , this variant occurs in the invariant region (+/- 1,2) of the splice consensus sequence and is predicted to cause altered splicing leading to an abnormal or ab sent protein. In summary, this variant meets our criteria to be classified as pa thogenic. -

Retinal dystrophy

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Blueprint Genetics

Jun 19, 2018

- -

USH2A-related disorder

Pathogenic:1

Pathogenic, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Aug 20, 2024

The USH2A c.12067-2A>G variant is predicted to disrupt the AG splice acceptor site and interfere with normal splicing. This variant has been reported many times as causative for Usher syndrome (see for examples: Auslender et al. 2008. PubMed ID: 18452394; Aparisi et al. 2014. PubMed ID: 25404053; González-Del Pozo. 2018. PubMed ID: 30190494). This variant is reported in 0.041% of alleles in individuals of Latino descent in gnomAD. Variants that disrupt the consensus splice acceptor site in USH2A are expected to be pathogenic. Given the evidence, we interpret this variant as pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.40

BayesDel_noAF

Pathogenic

0.15

CADD

Pathogenic

DANN

Uncertain

0.99

Eigen

Pathogenic

1.0

Eigen_PC

Pathogenic

0.83

FATHMM_MKL

Pathogenic

0.99

MutationTaster

Benign

1.0

D;D

GERP RS

5.3

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Pathogenic

1.0

dbscSNV1_RF

Pathogenic

0.93

SpliceAI score (max)

0.97

Details are displayed if max score is > 0.2

DS_AL_spliceai

0.97

Position offset: -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