rs115039883

Variant names:

Variant summary

Our verdict is Benign. The variant received -18 ACMG points: 2P and 20B. PM1BP4_StrongBP6_Very_StrongBS1BS2

The NM_206933.4(USH2A):c.6077A>G(p.Lys2026Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000777 in 1,614,122 control chromosomes in the GnomAD database, including 13 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. K2026K) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0040 ( 6 hom., cov: 32)

Exomes 𝑓: 0.00044 ( 7 hom. )

Consequence

USH2A
NM_206933.4 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 0.324

Publications

1 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 2A
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
Usher syndrome type 2
Inheritance: Unknown, AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
retinitis pigmentosa 39
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
retinitis pigmentosa
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

USH2A links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -18 ACMG points.

PM1

In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 3 uncertain in NM_206933.4

BP4

Computational evidence support a benign effect (MetaRNN=0.008856475).

BP6

Variant 1-216048620-T-C is Benign according to our data. Variant chr1-216048620-T-C is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 48552.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00403 (614/152300) while in subpopulation AFR AF = 0.0142 (589/41560). AF 95% confidence interval is 0.0132. There are 6 homozygotes in GnomAd4. There are 293 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 6 AD,AR gene

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	USH2A	NM_206933.4	MANE Select	c.6077A>G	p.Lys2026Arg	missense	Exon 31 of 72	NP_996816.3	O75445-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	USH2A	ENST00000307340.8	TSL:1 MANE Select	c.6077A>G	p.Lys2026Arg	missense	Exon 31 of 72	ENSP00000305941.3	O75445-1
	USH2A	ENST00000674083.1		c.6077A>G	p.Lys2026Arg	missense	Exon 31 of 73	ENSP00000501296.1	O75445-3

Frequencies

GnomAD3 genomes

AF:

0.00403

AC:

613

AN:

152184

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0142

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000981

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000621

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00383

GnomAD2 exomes

AF:

0.00108

AC:

271

AN:

251448

AF XY:

0.000765

show subpopulations

Gnomad AFR exome

AF:

0.0154

Gnomad AMR exome

AF:

0.000405

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:

0.000326

GnomAD4 exome

AF:

0.000438

AC:

640

AN:

1461822

Hom.:

Cov.:

AF XY:

0.000374

AC XY:

272

AN XY:

727204

show subpopulations

African (AFR)

AF:

0.0161

AC:

538

AN:

33478

American (AMR)

AF:

0.000648

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39692

South Asian (SAS)

AF:

0.0000927

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.000867

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000360

AC:

AN:

1111958

Other (OTH)

AF:

0.000927

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.470

Heterozygous variant carriers

109

146

182

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

<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:

0.00403

AC:

614

AN:

152300

Hom.:

Cov.:

AF XY:

0.00393

AC XY:

293

AN XY:

74468

show subpopulations

African (AFR)

AF:

0.0142

AC:

589

AN:

41560

American (AMR)

AF:

0.000980

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.000414

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10616

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68022

Other (OTH)

AF:

0.00379

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

121

151

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<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:

0.00168

Hom.:

Bravo

AF:

0.00449

ESP6500AA

AF:

0.0168

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00132

AC:

160

Asia WGS

AF:

0.000866

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.000119

ClinVar

ClinVar submissions

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (3)

not specified (1)

Retinitis pigmentosa 39 (1)

Usher syndrome type 2A (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.064

BayesDel_addAF

Benign

-0.64

BayesDel_noAF

Benign

-0.68

CADD

Benign

(source)

DANN

Benign

0.88

DEOGEN2

Benign

0.044

Eigen

Benign

-0.48

Eigen_PC

Benign

-0.37

FATHMM_MKL

Benign

0.59

LIST_S2

Benign

0.65

MetaRNN

Benign

0.0089

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.70

PhyloP100

0.32

PrimateAI

Benign

0.24

PROVEAN

Benign

-0.40

REVEL

Benign

0.081

Sift

Benign

0.69

Sift4G

Benign

0.24

Polyphen

0.0020

Vest4

0.18

MVP

0.85

MPC

0.028

ClinPred

0.0026

GERP RS

-0.39

Varity_R

0.042

gMVP

0.35

Mutation Taster

=92/8

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over