rs754768875

Variant summary

Our verdict is Pathogenic. The variant received 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong

The NM_206933.4(USH2A):​c.4957C>T​(p.Arg1653*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000118 in 1,612,652 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 Pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. R1653R) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

USH2A
NM_206933.4 stop_gained

Scores

2
1
2

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:12

Conservation

PhyloP100: 0.881

Publications

5 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-AS2 (HGNC:40605): (USH2A antisense RNA 2)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 16 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PP5
Variant 1-216086749-G-A is Pathogenic according to our data. Variant chr1-216086749-G-A is described in ClinVar as Pathogenic. ClinVar VariationId is 488733.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
USH2ANM_206933.4 linkc.4957C>T p.Arg1653* stop_gained Exon 24 of 72 ENST00000307340.8 NP_996816.3
USH2A-AS2NR_125992.1 linkn.293G>A non_coding_transcript_exon_variant Exon 3 of 3
USH2A-AS2NR_125993.1 linkn.164G>A non_coding_transcript_exon_variant Exon 2 of 2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
USH2AENST00000307340.8 linkc.4957C>T p.Arg1653* stop_gained Exon 24 of 72 1 NM_206933.4 ENSP00000305941.3

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
151992
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000160
AC:
4
AN:
250638
AF XY:
0.0000221
show subpopulations
Gnomad AFR exome
AF:
0.0000616
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.000199
Gnomad EAS 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:
0.0000103
AC:
15
AN:
1460660
Hom.:
0
Cov.:
30
AF XY:
0.00000963
AC XY:
7
AN XY:
726648
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33412
American (AMR)
AF:
0.00
AC:
0
AN:
44592
Ashkenazi Jewish (ASJ)
AF:
0.0000383
AC:
1
AN:
26078
East Asian (EAS)
AF:
0.0000756
AC:
3
AN:
39680
South Asian (SAS)
AF:
0.0000348
AC:
3
AN:
86236
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53358
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5756
European-Non Finnish (NFE)
AF:
0.00000720
AC:
8
AN:
1111260
Other (OTH)
AF:
0.00
AC:
0
AN:
60288
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.418
Heterozygous variant carriers
0
1
2
4
5
6
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000263
AC:
4
AN:
151992
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74240
show subpopulations
African (AFR)
AF:
0.0000242
AC:
1
AN:
41376
American (AMR)
AF:
0.00
AC:
0
AN:
15236
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10590
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68004
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.550
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000484
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.0000247
AC:
3

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:12
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Usher syndrome type 2A Pathogenic:4
Nov 07, 2017
Counsyl
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:clinical testing

This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com.

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

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

May 28, 2019
Mendelics
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

not provided Pathogenic:3
May 27, 2022
Clinical Genetics Laboratory, Skane University Hospital Lund
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Mar 27, 2023
GeneDx
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Nonsense variant predicted to result in protein truncation or nonsense mediated decay in a gene for which loss of function is a known mechanism of disease; This variant is associated with the following publications: (PMID: 25525159, 28805479, 18273898, 27957503, 28512305, 32675063, 33576794, 33090715, 34781295, 33691693, 33124170, 30358468, 26927203, 30718709, 22334370, 24944099)

Jun 28, 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.Arg1653*) 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 (rs754768875, gnomAD 0.02%). This premature translational stop signal has been observed in individual(s) with Usher syndrome and retinitis pigmentosa (PMID: 18273898, 22334370, 27957503, 28512305). ClinVar contains an entry for this variant (Variation ID: 488733). For these reasons, this variant has been classified as Pathogenic.

Retinal dystrophy Pathogenic:2
Oct 01, 2023
Dept Of Ophthalmology, Nagoya University
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:research

Jan 01, 2020
Institute of Human Genetics, Univ. Regensburg, Univ. Regensburg
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Leber congenital amaurosis Pathogenic:1
Apr 01, 2018
Department of Clinical Genetics, Copenhagen University Hospital, Rigshospitalet
Significance:Likely pathogenic
Review Status:no assertion criteria provided
Collection Method:research

Retinitis pigmentosa 39 Pathogenic:1
Dec 11, 2023
Baylor Genetics
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Retinitis pigmentosa Pathogenic:1
Apr 01, 2018
Department of Clinical Genetics, Copenhagen University Hospital, Rigshospitalet
Significance:Likely pathogenic
Review Status:no assertion criteria provided
Collection Method:research

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.50
D
BayesDel_noAF
Pathogenic
0.28
CADD
Pathogenic
33
DANN
Uncertain
0.99
Eigen
Benign
0.18
Eigen_PC
Benign
-0.16
PhyloP100
0.88
Vest4
0.76
GERP RS
2.2
Mutation Taster
=0/200
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs754768875; hg19: chr1-216260091; COSMIC: COSV100239697; COSMIC: COSV100239697; API