rs397517966

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBP6

The NM_206933.4(USH2A):​c.10517C>T​(p.Thr3506Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000151 in 1,461,684 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T3506P) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000015 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

USH2A
NM_206933.4 missense

Scores

1
18

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:2

Conservation

PhyloP100: -1.35

Publications

0 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.108549654).
BP6
Variant 1-215782806-G-A is Benign according to our data. Variant chr1-215782806-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 48349.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
USH2ANM_206933.4 linkc.10517C>T p.Thr3506Met missense_variant Exon 53 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.10517C>T p.Thr3506Met missense_variant Exon 53 of 72 1 NM_206933.4 ENSP00000305941.3 O75445-1
USH2AENST00000674083.1 linkc.10517C>T p.Thr3506Met missense_variant Exon 53 of 73 ENSP00000501296.1 O75445-3

Frequencies

GnomAD3 genomes
AF:
0.00
AC:
0
AN:
152118
Hom.:
0
Cov.:
33
Gnomad AFR
AF:
0.00
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000199
AC:
5
AN:
251226
AF XY:
0.0000221
show subpopulations
Gnomad AFR exome
AF:
0.000185
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
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:
0.0000151
AC:
22
AN:
1461684
Hom.:
0
Cov.:
31
AF XY:
0.0000138
AC XY:
10
AN XY:
727148
show subpopulations
African (AFR)
AF:
0.0000896
AC:
3
AN:
33468
American (AMR)
AF:
0.0000224
AC:
1
AN:
44706
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26130
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39688
South Asian (SAS)
AF:
0.0000464
AC:
4
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53410
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.0000117
AC:
13
AN:
1111878
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60384
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.477
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
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
152118
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74310
African (AFR)
AF:
0.00
AC:
0
AN:
41432
American (AMR)
AF:
0.00
AC:
0
AN:
15252
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10608
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68020
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Alfa
AF:
0.0000282
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.0000247
AC:
3
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Usher syndrome type 2A;C3151138:Retinitis pigmentosa 39 Uncertain:1
Sep 12, 2017
Counsyl
Significance:Uncertain significance
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. -

not provided Uncertain:1
Jul 19, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces threonine, which is neutral and polar, with methionine, which is neutral and non-polar, at codon 3506 of the USH2A protein (p.Thr3506Met). This variant is present in population databases (rs397517966, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with USH2A-related conditions. ClinVar contains an entry for this variant (Variation ID: 48349). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The methionine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

not specified Benign:1
Jul 07, 2011
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Thr3506Met in exon 53 of USH2A: This variant is not expected to have clinical si gnificance because computational analyses (PolyPhen, SIFT, AlignGVGD, MAPP) do n ot suggest a high likelihood of impact to the protein primarily based upon a lac k of conservation across species including mammals. Of note, chimp and orangutan have a methionine at this position despite high nearby amino acid conservation. -

Inborn genetic diseases Benign:1
May 01, 2024
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.074
BayesDel_addAF
Benign
-0.48
T
BayesDel_noAF
Benign
-0.64
CADD
Benign
0.12
DANN
Benign
0.97
DEOGEN2
Benign
0.061
T
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.5
FATHMM_MKL
Benign
0.073
N
LIST_S2
Benign
0.45
T
M_CAP
Benign
0.030
D
MetaRNN
Benign
0.11
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.5
L
PhyloP100
-1.3
PrimateAI
Benign
0.19
T
PROVEAN
Benign
-0.75
N
REVEL
Benign
0.087
Sift
Benign
0.090
T
Sift4G
Uncertain
0.018
D
Polyphen
0.95
P
Vest4
0.17
MutPred
0.27
Loss of ubiquitination at K3509 (P = 0.0683);
MVP
0.58
MPC
0.031
ClinPred
0.070
T
GERP RS
-5.3
Varity_R
0.015
gMVP
0.44
Mutation Taster
=80/20
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs397517966; hg19: chr1-215956148; COSMIC: COSV105135097; API