rs1555635778

Variant summary

Our verdict is Pathogenic. The variant received 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong

The NM_000180.4(GUCY2D):​c.2563C>T​(p.Gln855*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,610,572 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 Pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

GUCY2D
NM_000180.4 stop_gained

Scores

5
1

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:3

Conservation

PhyloP100: 3.31

Publications

0 publications found
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 Gene-Disease associations (from GenCC):
  • cone-rod dystrophy
    Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, G2P
  • GUCY2D-related dominant retinopathy
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • GUCY2D-related recessive retinopathy
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • Leber congenital amaurosis 1
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • cone-rod dystrophy 6
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • night blindness, congenital stationary, type1i
    Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • Leber congenital amaurosis
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • central areolar choroidal dystrophy
    Inheritance: AR, AD Classification: SUPPORTIVE, LIMITED Submitted by: G2P, Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 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 17-8014751-C-T is Pathogenic according to our data. Variant chr17-8014751-C-T is described in ClinVar as Pathogenic. ClinVar VariationId is 497765.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000180.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
GUCY2D
NM_000180.4
MANE Select
c.2563C>Tp.Gln855*
stop_gained
Exon 13 of 20NP_000171.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
GUCY2D
ENST00000254854.5
TSL:1 MANE Select
c.2563C>Tp.Gln855*
stop_gained
Exon 13 of 20ENSP00000254854.4
ENSG00000279174
ENST00000623126.1
TSL:6
n.1628G>A
non_coding_transcript_exon
Exon 1 of 1
ENSG00000299408
ENST00000763246.1
n.147-34G>A
intron
N/A

Frequencies

GnomAD3 genomes
AF:
0.00000663
AC:
1
AN:
150736
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000244
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1459836
Hom.:
0
Cov.:
38
AF XY:
0.00000138
AC XY:
1
AN XY:
726246
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33440
American (AMR)
AF:
0.00
AC:
0
AN:
44672
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26100
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39624
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86198
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53290
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5672
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1110564
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60276
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
AF:
0.00000663
AC:
1
AN:
150736
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
73538
show subpopulations
African (AFR)
AF:
0.0000244
AC:
1
AN:
40940
American (AMR)
AF:
0.00
AC:
0
AN:
15102
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3460
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5094
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4746
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10304
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67788
Other (OTH)
AF:
0.00
AC:
0
AN:
2078
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

ClinVar submissions as Germline

Significance:Pathogenic
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
1
-
-
Cone-rod dystrophy 6 (1)
1
-
-
Cone-rod dystrophy 6;C2931258:Leber congenital amaurosis 1 (1)
1
-
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.63
D
BayesDel_noAF
Pathogenic
0.63
CADD
Pathogenic
45
DANN
Uncertain
1.0
Eigen
Pathogenic
1.1
Eigen_PC
Pathogenic
0.90
FATHMM_MKL
Pathogenic
0.98
D
PhyloP100
3.3
Vest4
0.93
GERP RS
5.1
Mutation Taster
=4/196
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.060
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs1555635778; hg19: chr17-7918069; API