rs746870063

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_206933.4(USH2A):​c.10013C>T​(p.Ser3338Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,790 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. S3338S) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

USH2A
NM_206933.4 missense

Scores

4
15

Clinical Significance

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

Conservation

PhyloP100: 1.94

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: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.25086915).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
USH2ANM_206933.4 linkc.10013C>T p.Ser3338Leu missense_variant Exon 51 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.10013C>T p.Ser3338Leu missense_variant Exon 51 of 72 1 NM_206933.4 ENSP00000305941.3 O75445-1
USH2AENST00000674083.1 linkc.10013C>T p.Ser3338Leu missense_variant Exon 51 of 73 ENSP00000501296.1 O75445-3

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461790
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
727196
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33472
American (AMR)
AF:
0.00
AC:
0
AN:
44710
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26130
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39682
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53402
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1111974
Other (OTH)
AF:
0.00
AC:
0
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
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

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
Cov.:
32
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.00000824
AC:
1

ClinVar

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

Submissions by phenotype

Usher syndrome type 2A Uncertain:2
Sep 17, 2021
Natera, Inc.
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

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

- -

not specified Uncertain:1
Jan 25, 2018
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Variant classified as Uncertain Significance - Favor Benign. The p.Ser3338Leu va riant in USH2A has not been previously reported in individuals with hearing loss or Usher syndrome and was absent from large population studies. Serine (Ser) at position 3338 is not conserved in mammals or evolutionarily distant species and 2 mammals (white rhinoceros and hedgehog) carry a leucine (Leu) at this positio n, raising the possibility that this change may be tolerated. Additional computa tional prediction tools support that the variant may not impact the protein, tho ugh this information is not predictive enough to rule out pathogenicity. In summ ary, while the clinical significance of the p.Ser3338Leu variant is uncertain, t hese data suggest that it is more likely to be benign. ACMG/AMP Criteria applied : PM2; BP4. -

Inborn genetic diseases Uncertain:1
Mar 24, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.10013C>T (p.S3338L) alteration is located in exon 51 (coding exon 50) of the USH2A gene. This alteration results from a C to T substitution at nucleotide position 10013, causing the serine (S) at amino acid position 3338 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Retinitis pigmentosa 39 Uncertain:1
Nov 04, 2023
Genome-Nilou Lab
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.096
BayesDel_addAF
Benign
-0.15
T
BayesDel_noAF
Benign
-0.45
CADD
Benign
19
DANN
Uncertain
0.99
DEOGEN2
Benign
0.24
T
Eigen
Benign
-0.065
Eigen_PC
Benign
0.11
FATHMM_MKL
Uncertain
0.87
D
LIST_S2
Benign
0.79
T
M_CAP
Benign
0.067
D
MetaRNN
Benign
0.25
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.0
M
PhyloP100
1.9
PrimateAI
Benign
0.48
T
PROVEAN
Uncertain
-2.5
D
REVEL
Benign
0.11
Sift
Benign
0.26
T
Sift4G
Benign
0.18
T
Polyphen
0.016
B
Vest4
0.44
MutPred
0.38
Loss of disorder (P = 0.0114);
MVP
0.68
MPC
0.028
ClinPred
0.67
D
GERP RS
5.0
Varity_R
0.15
gMVP
0.50
Mutation Taster
=68/32
polymorphism

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

Other links and lift over

dbSNP: rs746870063; hg19: chr1-215963570; API