X-41727902-C-G

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_080817.5(GPR82):c.876C>G(p.Asn292Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000267 in 112,175 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000027 ( 0 hom., 0 hem., cov: 24)

Exomes 𝑓: 0.0000037 ( 0 hom. 3 hem. )

Failed GnomAD Quality Control

Consequence

GPR82
NM_080817.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.138

Variant links:

Genes affected

GPR82 (HGNC:4533): (G protein-coupled receptor 82) The protein encoded by this gene is an orphan G protein-coupled receptor of unknown function. The encoded protein is a member of a family of proteins that contain seven transmembrane domains and transduce extracellular signals through heterotrimeric G proteins. [provided by RefSeq, Sep 2011]

GPR82 links:

CASK (HGNC:1497): (calcium/calmodulin dependent serine protein kinase) This gene encodes a calcium/calmodulin-dependent serine protein kinase. The encoded protein is a MAGUK (membrane-associated guanylate kinase) protein family member. These proteins are scaffold proteins and the encoded protein is located at synapses in the brain. Mutations in this gene are associated with FG syndrome 4, intellectual disability and microcephaly with pontine and cerebellar hypoplasia, and a form of X-linked intellectual disability. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2017]

CASK links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GPR82	NM_080817.5 link	c.876C>G	p.Asn292Lys	missense_variant	Exon 3 of 3	ENST00000302548.5	NP_543007.1	Q96P67
CASK	NM_001367721.1 link	c.429+11482G>C		intron_variant	Intron 5 of 26	ENST00000378163.7	NP_001354650.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GPR82	ENST00000302548.5 link	c.876C>G	p.Asn292Lys	missense_variant	Exon 3 of 3	1	NM_080817.5	ENSP00000303549.4		Q96P67
CASK	ENST00000378163.7 link	c.429+11482G>C		intron_variant	Intron 5 of 26	5	NM_001367721.1	ENSP00000367405.1		O14936-1

Frequencies

GnomAD3 genomes

AF:

0.0000267

AC:

AN:

112175

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

34345

show subpopulations

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:

0.0000564

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000551

AC:

AN:

181489

Hom.:

AF XY:

0.00

AC XY:

AN XY:

66189

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000123

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.00000367

AC:

AN:

1090448

Hom.:

Cov.:

AF XY:

0.00000842

AC XY:

AN XY:

356198

show subpopulations

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:

0.00000479

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000267

AC:

AN:

112175

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

34345

show subpopulations

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:

0.0000564

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 30, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.876C>G (p.N292K) alteration is located in exon 3 (coding exon 1) of the GPR82 gene. This alteration results from a C to G substitution at nucleotide position 876, causing the asparagine (N) at amino acid position 292 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.96

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.58

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.049

FATHMM_MKL

Benign

0.18

LIST_S2

Benign

0.75

M_CAP

Benign

0.021

MetaRNN

Uncertain

0.71

MetaSVM

Benign

-0.96

MutationAssessor

Benign

0.97

PrimateAI

Uncertain

0.67

PROVEAN

Benign

0.69

REVEL

Benign

0.22

Sift

Benign

0.14

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.70

MutPred

0.66

Gain of ubiquitination at N292 (P = 0.0388);

MVP

0.42

MPC

0.77

ClinPred

0.41

GERP RS

-0.15

Varity_R

0.12

gMVP

0.55

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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