rs773405046

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 1P and 0B. PP3

The NM_206933.4(USH2A):​c.5855C>T​(p.Ala1952Val) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000093 in 1,613,410 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. A1952A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

USH2A
NM_206933.4 missense, splice_region

Scores

1
5
12
Splicing: ADA: 0.9993
2

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:7

Conservation

PhyloP100: 4.83

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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PP3
Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. Scorers claiming Uncertain: max_spliceai. No scorers claiming Benign.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_206933.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
USH2A
NM_206933.4
MANE Select
c.5855C>Tp.Ala1952Val
missense splice_region
Exon 29 of 72NP_996816.3
USH2A-AS2
NR_125992.1
n.136+291G>A
intron
N/A
USH2A-AS2
NR_125993.1
n.136+291G>A
intron
N/A

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
USH2A
ENST00000307340.8
TSL:1 MANE Select
c.5855C>Tp.Ala1952Val
missense splice_region
Exon 29 of 72ENSP00000305941.3
USH2A
ENST00000674083.1
c.5855C>Tp.Ala1952Val
missense splice_region
Exon 29 of 73ENSP00000501296.1
USH2A-AS2
ENST00000445619.5
TSL:3
n.86G>A
non_coding_transcript_exon
Exon 1 of 2

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152070
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000169
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:
250772
AF XY:
0.0000148
show subpopulations
Gnomad AFR exome
AF:
0.000308
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:
0.00000547
AC:
8
AN:
1461340
Hom.:
0
Cov.:
31
AF XY:
0.00000275
AC XY:
2
AN XY:
727018
show subpopulations
African (AFR)
AF:
0.000150
AC:
5
AN:
33442
American (AMR)
AF:
0.00
AC:
0
AN:
44714
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26122
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39692
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86250
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53404
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111578
Other (OTH)
AF:
0.0000497
AC:
3
AN:
60374
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.494
Heterozygous variant carriers
0
1
2
2
3
4
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:
0.0000460
AC:
7
AN:
152070
Hom.:
0
Cov.:
32
AF XY:
0.0000673
AC XY:
5
AN XY:
74262
show subpopulations
African (AFR)
AF:
0.000169
AC:
7
AN:
41400
American (AMR)
AF:
0.00
AC:
0
AN:
15254
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10602
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
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
1
1
2
2
3
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:
0.0000847
Hom.:
0
Bravo
AF:
0.0000604
ExAC
AF:
0.0000247
AC:
3

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
not provided (2)
-
2
-
Usher syndrome type 2A (2)
-
1
-
Inborn genetic diseases (1)
-
1
-
not specified (1)
-
1
-
Retinitis pigmentosa 39 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.086
BayesDel_addAF
Benign
-0.40
T
BayesDel_noAF
Benign
-0.52
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.093
T
Eigen
Benign
0.093
Eigen_PC
Uncertain
0.26
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Benign
0.79
T
M_CAP
Uncertain
0.15
D
MetaRNN
Benign
0.24
T
MetaSVM
Benign
-0.90
T
MutationAssessor
Uncertain
2.5
M
PhyloP100
4.8
PrimateAI
Benign
0.27
T
PROVEAN
Benign
-1.8
N
REVEL
Benign
0.15
Sift
Benign
0.035
D
Sift4G
Uncertain
0.018
D
Polyphen
0.22
B
Vest4
0.22
MutPred
0.21
Gain of catalytic residue at A1952 (P = 0.0761)
MVP
0.91
MPC
0.043
ClinPred
0.25
T
GERP RS
6.0
Varity_R
0.13
gMVP
0.37
Mutation Taster
=68/32
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.89
SpliceAI score (max)
0.28
Details are displayed if max score is > 0.2
DS_DG_spliceai
0.24
Position offset: 2
DS_DL_spliceai
0.28
Position offset: -2

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

Publications

Other links and lift over

dbSNP: rs773405046; hg19: chr1-216246233; COSMIC: COSV56381153; API