rs61749670

Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong

The NM_000180.4(GUCY2D):c.389del(p.Pro130LeufsTer36) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000264 in 1,515,578 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000022 ( 0 hom. )

Consequence

GUCY2D
NM_000180.4 frameshift

Scores

Not classified

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:7O:1

Conservation

PhyloP100: 0.661

Variant links:

Genes affected

GUCY2D (HGNC:4689): (guanylate cyclase 2D, retinal) This gene encodes a retina-specific guanylate cyclase, which is a member of the membrane guanylyl cyclase family. Like other membrane guanylyl cyclases, this enzyme has a hydrophobic amino-terminal signal sequence followed by a large extracellular domain, a single membrane spanning domain, a kinase homology domain, and a guanylyl cyclase catalytic domain. In contrast to other membrane guanylyl cyclases, this enzyme is not activated by natriuretic peptides. Mutations in this gene result in Leber congenital amaurosis and cone-rod dystrophy-6 diseases. [provided by RefSeq, Dec 2008]

GUCY2D links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

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 17-8003433-AC-A is Pathogenic according to our data. Variant chr17-8003433-AC-A is described in ClinVar as [Pathogenic]. Clinvar id is 98602.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr17-8003433-AC-A is described in Lovd as [Pathogenic]. Variant chr17-8003433-AC-A is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GUCY2D	NM_000180.4 linkuse as main transcript	c.389del	p.Pro130LeufsTer36	frameshift_variant	2/20	ENST00000254854.5
GUCY2D	XM_011523816.2 linkuse as main transcript	c.389del	p.Pro130LeufsTer36	frameshift_variant	1/19

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GUCY2D	ENST00000254854.5 linkuse as main transcript	c.389del	p.Pro130LeufsTer36	frameshift_variant	2/20	1	NM_000180.4	P1

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

151914

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000174

AC:

AN:

115224

Hom.:

AF XY:

0.0000157

AC XY:

AN XY:

63744

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000433

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000233

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000220

AC:

AN:

1363664

Hom.:

Cov.:

AF XY:

0.00000149

AC XY:

AN XY:

672966

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000292

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000353

GnomAD4 genome

AF:

0.00000658

AC:

AN:

151914

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74204

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:7Other:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Leber congenital amaurosis 1

Pathogenic:3

Pathogenic, no assertion criteria provided	research	Laboratory of Genetics in Ophthalmology, Institut Imagine	-	- -
Pathogenic, no assertion criteria provided	literature only	OMIM	Aug 01, 1998	- -
Pathogenic, criteria provided, single submitter	clinical testing	Department of Genetics, Rouen University Hospital, Normandy Center for Genomic and Personalized Medicine	-	- -

not provided

Pathogenic:1Other:1

not provided, no classification provided	literature only	Retina International	-	- -
Pathogenic, criteria provided, single submitter	clinical testing	GeneDx	Oct 28, 2021	Frameshift 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: 24265693, 8944027, 20683928, 20604683, 31814694, 32865313, 31736247, 32094338) -

Cone-rod dystrophy 6;C2931258:Leber congenital amaurosis 1

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Invitae

Dec 20, 2023

This sequence change creates a premature translational stop signal (p.Pro130Leufs*36) in the GUCY2D gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in GUCY2D are known to be pathogenic (PMID: 10951519, 11328726). This variant is present in population databases (rs61749670, gnomAD 0.009%). This premature translational stop signal has been observed in individual(s) with autosomal recessive Leber congenital amaurosis (PMID: 8944027, 20683928). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 98602). For these reasons, this variant has been classified as Pathogenic. -

Leber congenital amaurosis

Pathogenic:1

Likely pathogenic, no assertion criteria provided

research

Sharon lab, Hadassah-Hebrew University Medical Center

Jun 23, 2019

- -

Cone-rod dystrophy 6;C2931258:Leber congenital amaurosis 1;C4551884:Choroidal dystrophy, central areolar, 1;C5231408:Night blindness, congenital stationary, type1i

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Sep 30, 2021

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over