rs772100045

Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong

The NM_206933.4(USH2A):​c.9469C>T​(p.Gln3157*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,612,726 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 (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

USH2A
NM_206933.4 stop_gained

Scores

2
2
3

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:10

Conservation

PhyloP100: 1.42
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 18 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 1-215817098-G-A is Pathogenic according to our data. Variant chr1-215817098-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 555916.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-215817098-G-A is described in Lovd as [Pathogenic]. Variant chr1-215817098-G-A is described in Lovd as [Pathogenic]. Variant chr1-215817098-G-A is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
USH2ANM_206933.4 linkc.9469C>T p.Gln3157* stop_gained Exon 48 of 72 ENST00000307340.8 NP_996816.3 O75445-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
USH2AENST00000307340.8 linkc.9469C>T p.Gln3157* stop_gained Exon 48 of 72 1 NM_206933.4 ENSP00000305941.3 O75445-1
USH2AENST00000674083.1 linkc.9469C>T p.Gln3157* stop_gained Exon 48 of 73 ENSP00000501296.1 O75445-3

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
151926
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000194
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:
0.0000160
AC:
4
AN:
250496
Hom.:
0
AF XY:
0.0000148
AC XY:
2
AN XY:
135354
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000218
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:
0.00000137
AC:
2
AN:
1460800
Hom.:
0
Cov.:
30
AF XY:
0.00000138
AC XY:
1
AN XY:
726704
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
151926
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74198
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000194
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000192
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.0000247
AC:
3

ClinVar

Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:10
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Retinitis pigmentosa 39 Pathogenic:3
Nov 04, 2023
Genome-Nilou Lab
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Nov 11, 2023
Baylor Genetics
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Feb 05, 2025
SingHealth Duke-NUS Institute of Precision Medicine
Significance: Likely pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Variant is predicted to cause nonsense-mediated decay in a gene where LOF is a known cause of pathogenicity (PVS1). Homozygous allele count in gnomAD exomes and genomes are less than 0 (PM2). -

Usher syndrome type 2A Pathogenic:3
Nov 04, 2023
Genome-Nilou Lab
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Sep 16, 2020
Natera, Inc.
Significance: Pathogenic
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

-
Juno Genomics, Hangzhou Juno Genomics, Inc
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

PM2_Supporting+PM3_Strong+PVS1 -

Usher syndrome type 2A;C3151138:Retinitis pigmentosa 39 Pathogenic:2
Jan 03, 2018
Counsyl
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

May 06, 2022
Fulgent Genetics, Fulgent Genetics
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Usher syndrome Pathogenic:1
Feb 04, 2022
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Variant summary: USH2A c.9469C>T (p.Gln3157X) results in a premature termination codon, predicted to cause a truncation of the encoded protein or absence of the protein due to nonsense mediated decay, which are commonly known mechanisms for disease. The variant allele was found at a frequency of 1.6e-05 in 250496 control chromosomes (gnomAD). c.9469C>T has been reported in the literature in multiple compound heterozygous and homozygous individuals affected with Usher Syndrome or Retinitis Pigmentosa (example: Gao_2021, Shen_2021, Wafa_2021). These data indicate that the variant is very likely to be associated with disease. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. Four ClinVar submitters have assessed the variant since 2014: all four classified the variant as pathogenic. Based on the evidence outlined above, the variant was classified as pathogenic. -

not provided Pathogenic:1
Mar 31, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change creates a premature translational stop signal (p.Gln3157*) in the USH2A gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in USH2A are known to be pathogenic (PMID: 10729113, 10909849, 20507924, 25649381). This variant is present in population databases (rs772100045, gnomAD 0.02%). This premature translational stop signal has been observed in individuals with Usher syndrome or inherited retinal dystrophy (PMID: 23737954, 25356976, 26338283). ClinVar contains an entry for this variant (Variation ID: 555916). For these reasons, this variant has been classified as Pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.42
D
BayesDel_noAF
Pathogenic
0.28
CADD
Pathogenic
36
DANN
Uncertain
0.99
Eigen
Uncertain
0.19
Eigen_PC
Benign
-0.11
FATHMM_MKL
Benign
0.17
N
Vest4
0.83
GERP RS
3.4

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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.

Other links and lift over

dbSNP: rs772100045; hg19: chr1-215990440; API