NM_206933.4:c.12817T>C

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_206933.4(USH2A):c.12817T>C(p.Tyr4273His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000705 in 1,614,130 control chromosomes in the GnomAD database, including 7 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Y4273C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0037 ( 2 hom., cov: 32)

Exomes 𝑓: 0.00039 ( 5 hom. )

Consequence

USH2A
NM_206933.4 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:7

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 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 -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0047621727).

BP6

Variant 1-215675094-A-G is Benign according to our data. Variant chr1-215675094-A-G is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 178649.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAdExome4 allele frequency = 0.000394 (576/1461840) while in subpopulation AFR AF = 0.0145 (484/33480). AF 95% confidence interval is 0.0134. There are 5 homozygotes in GnomAdExome4. There are 247 alleles in the male GnomAdExome4 subpopulation. Median coverage is 38. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 2 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.12817T>C	p.Tyr4273His	missense	Exon 63 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.12817T>C	p.Tyr4273His	missense	Exon 63 of 72	ENSP00000305941.3	O75445-1
	USH2A	ENST00000674083.1		c.12817T>C	p.Tyr4273His	missense	Exon 63 of 73	ENSP00000501296.1	O75445-3

Frequencies

GnomAD3 genomes

AF:

0.00365

AC:

555

AN:

152172

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0129

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:

0.0000147

Gnomad OTH

AF:

0.00239

GnomAD2 exomes

AF:

0.000932

AC:

234

AN:

250984

AF XY:

0.000656

show subpopulations

Gnomad AFR exome

AF:

0.0132

Gnomad AMR exome

AF:

0.000492

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:

0.000163

GnomAD4 exome

AF:

0.000394

AC:

576

AN:

1461840

Hom.:

Cov.:

AF XY:

0.000340

AC XY:

247

AN XY:

727216

show subpopulations

African (AFR)

AF:

0.0145

AC:

484

AN:

33480

American (AMR)

AF:

0.000581

AC:

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39690

South Asian (SAS)

AF:

0.0000696

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.000867

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1111986

Other (OTH)

AF:

0.000878

AC:

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

Heterozygous variant carriers

127

170

212

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:

0.00369

AC:

562

AN:

152290

Hom.:

Cov.:

AF XY:

0.00359

AC XY:

267

AN XY:

74476

show subpopulations

African (AFR)

AF:

0.0131

AC:

543

AN:

41566

American (AMR)

AF:

0.000850

AC:

AN:

15292

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5176

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68024

Other (OTH)

AF:

0.00237

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.509

Heterozygous variant carriers

102

128

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:

0.00156

Hom.:

Bravo

AF:

0.00422

ESP6500AA

AF:

0.0141

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00114

AC:

138

Asia WGS

AF:

0.00260

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (3)

Usher syndrome type 2A (2)

not specified (1)

Retinitis pigmentosa 39 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.079

BayesDel_addAF

Benign

-0.64

BayesDel_noAF

Benign

-0.69

CADD

Benign

1.3

(source)

DANN

Benign

0.24

DEOGEN2

Benign

0.036

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.014

LIST_S2

Benign

0.50

MetaRNN

Benign

0.0048

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.035

PhyloP100

0.14

PrimateAI

Benign

0.23

PROVEAN

Benign

-0.51

REVEL

Benign

0.029

Sift

Benign

0.57

Sift4G

Benign

0.69

Polyphen

0.0

Vest4

0.096

MVP

0.31

MPC

0.035

ClinPred

0.00011

GERP RS

-1.3

Varity_R

0.033

gMVP

0.40

Mutation Taster

=85/15

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