chr17-8015485-G-T

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1PM2PP3_Strong

The NM_000180.4(GUCY2D):​c.2927G>T​(p.Arg976Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

GUCY2D
NM_000180.4 missense

Scores

15
3
1

Clinical Significance

Uncertain significance criteria provided, single submitter P:1U:3O:1

Conservation

PhyloP100: 10.0
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PM1
In a domain Guanylate cyclase (size 130) in uniprot entity GUC2D_HUMAN there are 32 pathogenic changes around while only 0 benign (100%) in NM_000180.4
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.994

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GUCY2DNM_000180.4 linkuse as main transcriptc.2927G>T p.Arg976Leu missense_variant 15/20 ENST00000254854.5 NP_000171.1
GUCY2DXM_011523816.2 linkuse as main transcriptc.2927G>T p.Arg976Leu missense_variant 14/19 XP_011522118.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GUCY2DENST00000254854.5 linkuse as main transcriptc.2927G>T p.Arg976Leu missense_variant 15/201 NM_000180.4 ENSP00000254854 P1
ENST00000623126.1 linkuse as main transcriptn.894C>A non_coding_transcript_exon_variant 1/1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000402
AC:
1
AN:
248910
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
134814
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000547
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1459564
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
726030
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Uncertain significance
Submissions summary: Pathogenic:1Uncertain:3Other:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Leber congenital amaurosis 1 Pathogenic:1Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenomic Research Center, Shahid Beheshti University of Medical SciencesAug 07, 2018- -
Likely pathogenic, no assertion criteria providedresearchLaboratory of Genetics in Ophthalmology, Institut Imagine-- -
Choroidal dystrophy, central areolar, 1 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenomic Research Center, Shahid Beheshti University of Medical SciencesAug 07, 2018- -
Cone-rod dystrophy 6 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenomic Research Center, Shahid Beheshti University of Medical SciencesAug 07, 2018- -
not provided Other:1
not provided, no classification providedliterature onlyRetina International-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.35
D
BayesDel_noAF
Pathogenic
0.43
CADD
Pathogenic
34
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.87
D
Eigen
Pathogenic
0.99
Eigen_PC
Pathogenic
0.83
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.99
D
M_CAP
Pathogenic
0.63
D
MetaRNN
Pathogenic
0.99
D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
4.6
H
MutationTaster
Benign
1.0
D
PrimateAI
Pathogenic
0.83
D
PROVEAN
Pathogenic
-6.1
D
REVEL
Pathogenic
0.90
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.0020
D
Polyphen
1.0
D
Vest4
0.99
MutPred
0.96
Loss of methylation at R976 (P = 0.0538);
MVP
0.96
MPC
1.9
ClinPred
1.0
D
GERP RS
4.8
Varity_R
0.92
gMVP
0.97

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

LitVar

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

Other links and lift over

dbSNP: rs61750184; hg19: chr17-7918803; API