1-215799003-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_206933.4(USH2A):ā€‹c.9862G>Cā€‹(p.Asp3288His) variant causes a missense change. The variant allele was found at a frequency of 0.0000105 in 1,613,992 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 Uncertain significance (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 33)
Exomes š‘“: 0.000011 ( 0 hom. )

Consequence

USH2A
NM_206933.4 missense

Scores

7
5
7

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 4.31
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.897

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
USH2ANM_206933.4 linkuse as main transcriptc.9862G>C p.Asp3288His missense_variant 50/72 ENST00000307340.8 NP_996816.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
USH2AENST00000307340.8 linkuse as main transcriptc.9862G>C p.Asp3288His missense_variant 50/721 NM_206933.4 ENSP00000305941 P1O75445-1
USH2AENST00000674083.1 linkuse as main transcriptc.9862G>C p.Asp3288His missense_variant 50/73 ENSP00000501296 O75445-3

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152206
Hom.:
0
Cov.:
33
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.0000109
AC:
16
AN:
1461786
Hom.:
0
Cov.:
32
AF XY:
0.0000151
AC XY:
11
AN XY:
727196
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000135
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152206
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74370
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000113

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Usher syndrome type 2A;C3151138:Retinitis pigmentosa 39 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingCounsylApr 18, 2018- -
not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpNov 27, 2021This sequence change replaces aspartic acid, which is acidic and polar, with histidine, which is basic and polar, at codon 3288 of the USH2A protein (p.Asp3288His). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with Usher syndrome (PMID: 27460420). ClinVar contains an entry for this variant (Variation ID: 557966). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). 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. -
Retinitis pigmentosa 39 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenome-Nilou LabNov 04, 2023- -
Usher syndrome type 2A Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenome-Nilou LabNov 04, 2023- -
Retinal dystrophy Uncertain:1
Uncertain significance, criteria provided, single submitterresearchDept Of Ophthalmology, Nagoya UniversityOct 01, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.29
BayesDel_addAF
Uncertain
0.017
T
BayesDel_noAF
Benign
-0.21
CADD
Benign
20
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.53
D
Eigen
Pathogenic
0.79
Eigen_PC
Pathogenic
0.73
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.78
T
M_CAP
Pathogenic
0.84
D
MetaRNN
Pathogenic
0.90
D
MetaSVM
Benign
-0.91
T
MutationAssessor
Uncertain
2.8
M
MutationTaster
Benign
1.0
D;D
PrimateAI
Benign
0.46
T
PROVEAN
Pathogenic
-4.7
D
REVEL
Benign
0.28
Sift
Uncertain
0.0040
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.81
MutPred
0.44
Gain of methylation at R3285 (P = 0.0808);
MVP
0.78
MPC
0.24
ClinPred
1.0
D
GERP RS
5.8
Varity_R
0.42
gMVP
0.85

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
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: rs1334903455; hg19: chr1-215972345; API