6-64591822-G-A

Position:

• chr6-64591822-G-A

Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1 PM2 PP5_Very_Strong

The NM_001142800.2(EYS):​c.4045C>T​(p.Arg1349Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000187 in 1,551,162 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Variant results in nonsense mediated mRNA decay.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000020 (0 hom.)
• Consequence: EYS NM_001142800.2 stop_gained
• Clinical Significance: Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:9
• Conservation: PhyloP100: 0.813

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]

ACMG classification

Verdict is Pathogenic. Variant got 18 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 6-64591822-G-A is Pathogenic according to our data. Variant chr6-64591822-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 438197.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr6-64591822-G-A is described in Lovd as [Pathogenic]. Variant chr6-64591822-G-A is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
EYS	NM_001142800.2	c.4045C>T	p.Arg1349Ter	stop_gained	26/43	ENST00000503581.6	NP_001136272.1
EYS	NM_001292009.2	c.4045C>T	p.Arg1349Ter	stop_gained	26/44		NP_001278938.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
EYS	ENST00000503581.6	c.4045C>T	p.Arg1349Ter	stop_gained	26/43	5	NM_001142800.2	ENSP00000424243	A2
EYS	ENST00000370621.7	c.4045C>T	p.Arg1349Ter	stop_gained	26/44	1		ENSP00000359655	P2

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152092 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

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: 0.00

GnomAD4 exome AF: 0.0000200 AC: 28 AN: 1399070 Hom.: 0 Cov.: 35 AF XY: 0.0000174 AC XY: 12 AN XY: 690044

Gnomad4 AFR exome AF: 0.0000633

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000126

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000222

Gnomad4 OTH exome AF: 0.0000172

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152092 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 74296

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000147

Gnomad4 OTH AF: 0.00

Alfa AF: 0.0000325 Hom.: 0

Bravo AF: 0.0000113

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:9

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Pathogenic:4

Pathogenic, criteria provided, single submitter	clinical testing	Institute of Medical Genetics and Applied Genomics, University Hospital Tübingen	Jun 17, 2021	- -
Pathogenic, criteria provided, single submitter	clinical testing	GeneDx	Aug 22, 2022	Nonsense variant predicted to result in protein truncation or nonsense mediated decay in a gene for which loss-of-function is a known mechanism of disease; This variant is associated with the following publications: (PMID: 35046417, 24265693, 28041643, 30337596, 31054281, 32581362, 31589614, 31074760, 32531858) -
Pathogenic, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	May 16, 2023	For these reasons, this variant has been classified as Pathogenic. ClinVar contains an entry for this variant (Variation ID: 438197). This premature translational stop signal has been observed in individuals with retinitis pigmentosa (PMID: 24265693, 28041643). This variant is present in population databases (no rsID available, gnomAD 0.01%). This sequence change creates a premature translational stop signal (p.Arg1349*) in the EYS gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in EYS are known to be pathogenic (PMID: 18836446, 20333770). -
Pathogenic, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Jan 01, 2017	- -

Retinitis pigmentosa Pathogenic:3

Likely pathogenic, no assertion criteria provided	research	NIHR Bioresource Rare Diseases, University of Cambridge	Jan 01, 2015	- -
Pathogenic, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Dec 08, 2023	Variant summary: EYS c.4045C>T (p.Arg1349X) results in a premature termination codon, predicted to cause a truncation of the encoded protein or absence of the protein due to nonsense mediated decay, which are commonly known mechanisms for disease. Variants downstream of this position have been classified as pathogenic by our laboratory. The variant allele was found at a frequency of 3.2e-05 in 31404 control chromosomes. c.4045C>T has been reported in the literature in mulitple individuals affected with Retinitis Pigmentosa (e.g., Weisschuh_2020). The following publication have been ascertained in the context of this evaluation (PMID: 32531858). Seven submitters have cited clinical-significance assessments for this variant to ClinVar after 2014; and all submitters classified the variant as pathogenic/likely pathogenic. Based on the evidence outlined above, the variant was classified as pathogenic. -
Pathogenic, no assertion criteria provided	clinical testing	Natera, Inc.	Sep 16, 2020	- -

Retinitis pigmentosa 25 Pathogenic:2

Pathogenic, criteria provided, single submitter	clinical testing	Baylor Genetics	Mar 25, 2024	- -
Likely pathogenic, criteria provided, single submitter	clinical testing	Al Jalila Children’s Genomics Center, Al Jalila Childrens Speciality Hospital	Dec 26, 2019	- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.63	D
BayesDel_noAF	Pathogenic	0.28
CADD	Pathogenic	36
DANN	Uncertain	1.0
Eigen	Benign	0.15
Eigen_PC	Benign	-0.16
FATHMM_MKL	Benign	0.11	N
MutationTaster	Benign	1.0	A;A;A
Vest4		0.70
GERP RS		3.0

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

LitVar

Other links and lift over

dbSNP: rs930421180; hg19: chr6-65301715;