17-38343441-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_001004334.4(GPR179):​c.349G>A​(p.Asp117Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000451 in 1,461,802 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D117Y) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.000045 ( 0 hom. )

Consequence

GPR179
NM_001004334.4 missense

Scores

3
8
3

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts P:1U:2

Conservation

PhyloP100: 1.83

Publications

2 publications found
Variant links:
Genes affected
GPR179 (HGNC:31371): (G protein-coupled receptor 179) This gene encodes a member of the glutamate receptor subfamily of G protein-coupled receptors. The encoded protein has an EGF-like calcium binding domain and a seven transmembrane domain in the N-terminal region of the protein. Mutations in this gene are associated with congenital stationary night blindness type 1E. [provided by RefSeq, Apr 2012]
GPR179 Gene-Disease associations (from GenCC):
  • congenital stationary night blindness 1E
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
  • GPR179-related retinopathy
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • congenital stationary night blindness
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
GPR179NM_001004334.4 linkc.349G>A p.Asp117Asn missense_variant Exon 1 of 11 ENST00000616987.5 NP_001004334.3 Q6PRD1A0A087X0K8

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
GPR179ENST00000616987.5 linkc.349G>A p.Asp117Asn missense_variant Exon 1 of 11 1 NM_001004334.4 ENSP00000483469.2 A0A087X0K8
GPR179ENST00000610867.1 linkn.407G>A non_coding_transcript_exon_variant Exon 1 of 2 5

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD2 exomes
AF:
0.0000160
AC:
4
AN:
249402
AF XY:
0.0000222
show subpopulations
Gnomad AFR exome
AF:
0.0000646
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000265
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000451
AC:
66
AN:
1461802
Hom.:
0
Cov.:
32
AF XY:
0.0000454
AC XY:
33
AN XY:
727210
show subpopulations
African (AFR)
AF:
0.0000896
AC:
3
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53336
Middle Eastern (MID)
AF:
0.000347
AC:
2
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000504
AC:
56
AN:
1112010
Other (OTH)
AF:
0.0000497
AC:
3
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.470
Heterozygous variant carriers
0
4
8
12
16
20
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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
Cov.:
33
Alfa
AF:
0.0000149
Hom.:
0
Bravo
AF:
0.0000189
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.000109
EpiControl
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Pathogenic:1Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Pathogenic:1Uncertain:1
-
Genomic Medicine Center of Excellence, King Faisal Specialist Hospital and Research Centre
Significance:Likely pathogenic
Review Status:flagged submission
Collection Method:research

- -

May 04, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 117 of the GPR179 protein (p.Asp117Asn). This variant is present in population databases (rs776996552, gnomAD 0.007%). This missense change has been observed in individual(s) with clinical features of GPR179-related conditions (PMID: 26355662). ClinVar contains an entry for this variant (Variation ID: 191075). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). 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. -

Congenital stationary night blindness 1E Uncertain:1
Mar 29, 2024
Genomic Medicine Center of Excellence, King Faisal Specialist Hospital and Research Centre
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
Uncertain
0.49
BayesDel_addAF
Benign
-0.35
T
BayesDel_noAF
Benign
-0.56
CADD
Pathogenic
27
DANN
Pathogenic
1.0
Eigen
Pathogenic
0.70
Eigen_PC
Pathogenic
0.69
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.90
D;D
M_CAP
Uncertain
0.088
D
MetaRNN
Uncertain
0.63
D;D
MetaSVM
Uncertain
0.32
D
PhyloP100
1.8
PrimateAI
Uncertain
0.70
T
Sift4G
Uncertain
0.031
D;D
Vest4
0.72
MutPred
0.21
Loss of helix (P = 0.1299);Loss of helix (P = 0.1299);
MVP
0.040
ClinPred
0.92
D
GERP RS
5.7
gMVP
0.50
Mutation Taster
=36/64
disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs776996552; hg19: chr17-36499324; API