2-127651418-G-A

Position:

chr2-127651418-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001161417.2(GPR17):c.683G>A(p.Arg228His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000726 in 1,612,656 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000077 ( 0 hom. )

Consequence

GPR17
NM_001161417.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.23

Variant links:

Genes affected

GPR17 (HGNC:4471): (G protein-coupled receptor 17) Predicted to enable G protein-coupled receptor activity. Predicted to be involved in positive regulation of Rho protein signal transduction and positive regulation of cytosolic calcium ion concentration involved in phospholipase C-activating G protein-coupled signaling pathway. Predicted to act upstream of or within negative regulation of inflammatory response to antigenic stimulus. Predicted to be located in plasma membrane. Predicted to be integral component of plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

GPR17 links:

LIMS2 (HGNC:16084): (LIM zinc finger domain containing 2) This gene encodes a member of a small family of focal adhesion proteins which interacts with ILK (integrin-linked kinase), a protein which effects protein-protein interactions with the extraceullar matrix. The encoded protein has five LIM domains, each domain forming two zinc fingers, which permit interactions which regulate cell shape and migration. A pseudogene of this gene is located on chromosome 4. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2011]

LIMS2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.055410087).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GPR17	NM_001161417.2 linkuse as main transcript	c.683G>A	p.Arg228His	missense_variant	2/2	ENST00000486700.2
LIMS2	NM_001161403.3 linkuse as main transcript	c.359+3006C>T		intron_variant		ENST00000355119.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GPR17	ENST00000486700.2 linkuse as main transcript	c.683G>A	p.Arg228His	missense_variant	2/2	1	NM_001161417.2	P1	Q13304-2
LIMS2	ENST00000355119.9 linkuse as main transcript	c.359+3006C>T		intron_variant		1	NM_001161403.3	P1	Q7Z4I7-1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152250

Hom.:

Cov.:

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:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000599

AC:

AN:

250346

Hom.:

AF XY:

0.0000590

AC XY:

AN XY:

135496

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000202

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad SAS exome

AF:

0.000131

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000774

AC:

113

AN:

1460406

Hom.:

Cov.:

AF XY:

0.0000840

AC XY:

AN XY:

726576

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.000201

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000227

Gnomad4 SAS exome

AF:

0.0000927

Gnomad4 FIN exome

AF:

0.0000577

Gnomad4 NFE exome

AF:

0.0000701

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152250

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74388

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:

0.0000588

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000761

Hom.:

Bravo

AF:

0.0000491

ExAC

AF:

0.0000577

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 24, 2022

The c.767G>A (p.R256H) alteration is located in exon 4 (coding exon 2) of the GPR17 gene. This alteration results from a G to A substitution at nucleotide position 767, causing the arginine (R) at amino acid position 256 to be replaced by a histidine (H). 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

Benign

0.074

BayesDel_addAF

Benign

-0.46

BayesDel_noAF

Benign

-0.62

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.10

T;T;T

Eigen

Benign

-0.25

Eigen_PC

Benign

-0.068

FATHMM_MKL

Uncertain

0.81

LIST_S2

Benign

0.80

T;.;.

M_CAP

Benign

0.0049

MetaRNN

Benign

0.055

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.13

N;N;N

MutationTaster

Benign

0.97

N;N;N;D;D;D;D;D;D;D

PrimateAI

Benign

0.26

PROVEAN

Benign

-1.4

N;N;N

REVEL

Benign

0.075

Sift

Benign

0.25

T;T;T

Sift4G

Benign

0.13

T;T;T

Polyphen

0.0020

B;B;B

Vest4

0.034

MVP

0.27

MPC

0.31

ClinPred

0.034

GERP RS

3.2

Varity_R

0.077

gMVP

0.29

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