NM_001142800.2:c.2234A>G

Variant names:

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_001142800.2(EYS):c.2234A>G(p.Asn745Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0012 in 1,551,278 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. N745N) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00067 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0013 ( 6 hom. )

Consequence

EYS
NM_001142800.2 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:2U:11B:1

Conservation

PhyloP100: 2.94

Publications

9 publications found

Variant links:

Genes affected

EYS (HGNC:21555): (eyes shut homolog) The product of this gene contains multiple epidermal growth factor (EGF)-like and LamG domains. The protein is expressed in the photoreceptor layer of the retina, and the gene is mutated in autosomal recessive retinitis pigmentosa. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2008]

EYS Gene-Disease associations (from GenCC):

EYS-related retinopathy
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
retinitis pigmentosa
Inheritance: AR, AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: G2P, Orphanet
retinitis pigmentosa 25
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine

EYS links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.027632952).

BS2

High Homozygotes in GnomAdExome4 at 6 AR,AD gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EYS	NM_001142800.2 link	c.2234A>G	p.Asn745Ser	missense_variant	Exon 14 of 43	ENST00000503581.6	NP_001136272.1	Q5T1H1-1
EYS	NM_001292009.2 link	c.2234A>G	p.Asn745Ser	missense_variant	Exon 14 of 44		NP_001278938.1	Q5T1H1-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
EYS	ENST00000503581.6 link	c.2234A>G	p.Asn745Ser	missense_variant	Exon 14 of 43	5	NM_001142800.2	ENSP00000424243.1		Q5T1H1-1
EYS	ENST00000370621.7 link	c.2234A>G	p.Asn745Ser	missense_variant	Exon 14 of 44	1		ENSP00000359655.3		Q5T1H1-3

Frequencies

GnomAD3 genomes

AF:

0.000670

AC:

102

AN:

152172

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000410

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000393

Gnomad ASJ

AF:

0.00173

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.00104

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000831

AC:

131

AN:

157658

AF XY:

0.000721

show subpopulations

Gnomad AFR exome

AF:

0.000491

Gnomad AMR exome

AF:

0.000283

Gnomad ASJ exome

AF:

0.00141

Gnomad EAS exome

AF:

0.0000917

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00166

Gnomad OTH exome

AF:

0.000898

GnomAD4 exome

AF:

0.00126

AC:

1767

AN:

1398988

Hom.:

Cov.:

AF XY:

0.00119

AC XY:

820

AN XY:

690008

show subpopulations

African (AFR)

AF:

0.000190

AC:

AN:

31576

American (AMR)

AF:

0.000420

AC:

AN:

35706

Ashkenazi Jewish (ASJ)

AF:

0.00119

AC:

AN:

25144

East Asian (EAS)

AF:

0.0000561

AC:

AN:

35676

South Asian (SAS)

AF:

0.0000126

AC:

AN:

79214

European-Finnish (FIN)

AF:

0.0000203

AC:

AN:

49370

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5694

European-Non Finnish (NFE)

AF:

0.00153

AC:

1653

AN:

1078580

Other (OTH)

AF:

0.00102

AC:

AN:

58028

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.464

Heterozygous variant carriers

161

241

322

402

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

144

216

288

360

<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:

0.000670

AC:

102

AN:

152290

Hom.:

Cov.:

AF XY:

0.000671

AC XY:

AN XY:

74462

show subpopulations

African (AFR)

AF:

0.000409

AC:

AN:

41578

American (AMR)

AF:

0.000392

AC:

AN:

15294

Ashkenazi Jewish (ASJ)

AF:

0.00173

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10606

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00104

AC:

AN:

68008

Other (OTH)

AF:

0.000473

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.527

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

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:

0.00126

Hom.:

Bravo

AF:

0.000801

TwinsUK

AF:

0.00216

AC:

ALSPAC

AF:

0.000778

AC:

ESP6500AA

AF:

0.00145

AC:

ESP6500EA

AF:

0.000629

AC:

ExAC

AF:

0.000476

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Pathogenic:2Uncertain:11Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Retinitis pigmentosa 25

Pathogenic:1Uncertain:5

Sep 01, 2016

Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Jun 06, 2024

Baylor Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Aug 22, 2022

MGZ Medical Genetics Center

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Feb 05, 2023

Department of Pathology and Laboratory Medicine, Sinai Health System

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:research

- -

Jul 20, 2020

Natera, Inc.

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Apr 08, 2021

Ocular Genomics Institute, Massachusetts Eye and Ear

Significance:Likely pathogenic

Review Status:criteria provided, single submitter

Collection Method:research

The EYS c.2234A>G variant was identified in an individual with retinitis pigmentosa with a presumed recessive inheritance pattern. Through a review of available evidence we were able to apply the following criteria: PS1, PM2, PM3. Based on this evidence we have classified this variant as Likely Pathogenic. -

not provided

Pathogenic:1Uncertain:3Benign:1

Oct 25, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces asparagine, which is neutral and polar, with serine, which is neutral and polar, at codon 745 of the EYS protein (p.Asn745Ser). This variant is present in population databases (rs201652272, gnomAD 0.2%), and has an allele count higher than expected for a pathogenic variant. This missense change has been observed in individual(s) with autosomal recessive retinitis pigmentosa, and autosomal recessive cone-rod dystrophy (PMID: 21069908, 26103963). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 194357). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Deleterious"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C45". The serine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Oct 23, 2020

Institute of Medical Genetics and Applied Genomics, University Hospital Tübingen

Significance:Likely pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jul 01, 2022

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

EYS: BP4 -

Aug 13, 2014

Eurofins Ntd Llc (ga)

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Nov 21, 2023

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

In silico analysis supports that this missense variant does not alter protein structure/function; Observed in at least one homozygous clinically unaffected adult relative of an individual referred for genetic testing at GeneDx; This variant is associated with the following publications: (PMID: 34426522, 20333770, 30755224, 30487145, 21069908, 32037395, 33833316, 31574917, 26659599, 26103963, 28224992, 30937429, 21519034, 32483926) -

not specified

Uncertain:1

Feb 22, 2022

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Variant summary: EYS c.2234A>G (p.Asn745Ser) results in a conservative amino acid change located in the EGF-like calcium-binding domain of the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.00083 in 157658 control chromosomes. This frequency is not significantly higher than expected for a pathogenic variant in EYS causing Retinitis Pigmentosa (0.00083 vs 0.0034), allowing no conclusion about variant significance. c.2234A>G has been reported in the literature in individuals affected with Retinitis Pigmentosa. These reports do not provide unequivocal conclusions about association of the variant with Retinitis Pigmentosa. Six clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. Multiple laboratories reported the variant with conflicting assessments (likely pathogenic n=2, VUS n=4). Based on the evidence outlined above, the variant was classified as uncertain significance. -

Cone-rod dystrophy

Uncertain:1

Aug 12, 2020

Cambridge Genomics Laboratory, East Genomic Laboratory Hub, NHS Genomic Medicine Service

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Retinal dystrophy

Uncertain:1

Jan 31, 2019

Blueprint Genetics

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

0.12

BayesDel_addAF

Benign

-0.54

BayesDel_noAF

Benign

-0.55

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.038

.;T

Eigen

Benign

-0.34

Eigen_PC

Benign

-0.32

FATHMM_MKL

Uncertain

0.91

LIST_S2

Benign

0.66

T;T

M_CAP

Benign

0.048

MetaRNN

Benign

0.028

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.5

L;L

PhyloP100

2.9

PrimateAI

Benign

0.25

PROVEAN

Benign

-1.5

N;N

REVEL

Benign

0.14

Sift

Benign

0.15

T;T

Sift4G

Uncertain

0.018

D;D

Polyphen

0.18

B;.

Vest4

0.30

MVP

0.27

MPC

0.050

ClinPred

0.028

GERP RS

0.17

Varity_R

0.057

gMVP

0.75

Mutation Taster

=8/92

disease causing (ClinVar)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over