1-216046520-T-G

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6_Very_StrongBS2_Supporting

The NM_206933.4(USH2A):​c.6236A>C​(p.Lys2079Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000441 in 1,613,896 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0024 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00024 ( 2 hom. )

Consequence

USH2A
NM_206933.4 missense

Scores

2
15

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: -0.145

Publications

2 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: Benign. The variant received -13 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.002841115).
BP6
Variant 1-216046520-T-G is Benign according to our data. Variant chr1-216046520-T-G is described in ClinVar as Benign. ClinVar VariationId is 227145.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High Homozygotes in GnomAdExome4 at 2 AD,AR geneVariant has number of homozygotes lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
USH2ANM_206933.4 linkc.6236A>C p.Lys2079Thr missense_variant Exon 32 of 72 ENST00000307340.8 NP_996816.3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
USH2AENST00000307340.8 linkc.6236A>C p.Lys2079Thr missense_variant Exon 32 of 72 1 NM_206933.4 ENSP00000305941.3
USH2AENST00000674083.1 linkc.6236A>C p.Lys2079Thr missense_variant Exon 32 of 73 ENSP00000501296.1

Frequencies

GnomAD3 genomes
AF:
0.00240
AC:
365
AN:
152150
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00833
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000851
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:
0.00191
GnomAD2 exomes
AF:
0.000665
AC:
167
AN:
251170
AF XY:
0.000494
show subpopulations
Gnomad AFR exome
AF:
0.00886
Gnomad AMR exome
AF:
0.000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000237
AC:
346
AN:
1461628
Hom.:
2
Cov.:
34
AF XY:
0.000198
AC XY:
144
AN XY:
727122
show subpopulations
African (AFR)
AF:
0.00864
AC:
289
AN:
33468
American (AMR)
AF:
0.000447
AC:
20
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26128
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:
53412
Middle Eastern (MID)
AF:
0.000694
AC:
4
AN:
5766
European-Non Finnish (NFE)
AF:
0.00000720
AC:
8
AN:
1111808
Other (OTH)
AF:
0.000414
AC:
25
AN:
60388
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.467
Heterozygous variant carriers
0
22
43
65
86
108
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.00240
AC:
365
AN:
152268
Hom.:
1
Cov.:
32
AF XY:
0.00223
AC XY:
166
AN XY:
74456
show subpopulations
African (AFR)
AF:
0.00830
AC:
345
AN:
41550
American (AMR)
AF:
0.000850
AC:
13
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5178
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68004
Other (OTH)
AF:
0.00189
AC:
4
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.508
Heterozygous variant carriers
0
18
36
55
73
91
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.000946
Hom.:
0
Bravo
AF:
0.00260
ESP6500AA
AF:
0.00862
AC:
38
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000807
AC:
98
EpiCase
AF:
0.000164
EpiControl
AF:
0.000119

ClinVar

Significance: Benign
Submissions summary: Benign:8
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

Apr 28, 2018
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease.

Feb 02, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

not specified Benign:2
Apr 30, 2012
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Lys2079Thr in Exon 32 of USH2A: This variant is not expected to have clinical si gnificance because it has been identified in 0.8% (31/3738) of African American chromosomes from a broad population by the NHLBI Exome Sequencing Project (http: //evs.gs.washington.edu/EVS; dbSNP rs147039836).

Feb 27, 2017
Eurofins Ntd Llc (ga)
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Usher syndrome type 2A Benign:2
Nov 04, 2023
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Sep 15, 2020
Natera, Inc.
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

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

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.15
BayesDel_addAF
Benign
-0.49
T
BayesDel_noAF
Benign
-0.47
CADD
Benign
9.2
DANN
Uncertain
0.98
DEOGEN2
Benign
0.052
T
Eigen
Benign
-0.70
Eigen_PC
Benign
-0.64
FATHMM_MKL
Benign
0.073
N
LIST_S2
Benign
0.74
T
MetaRNN
Benign
0.0028
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.74
N
PhyloP100
-0.14
PrimateAI
Benign
0.23
T
PROVEAN
Benign
-0.77
N
REVEL
Benign
0.040
Sift
Benign
0.54
T
Sift4G
Uncertain
0.059
T
Vest4
0.18
ClinPred
0.0013
T
GERP RS
0.25
Varity_R
0.058
gMVP
0.51
Mutation Taster
=89/11
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: rs147039836; hg19: chr1-216219862; API