Genetic Variant GPR50:p.Val157Phe (chrX-151180052-G-T) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_004224.3(GPR50):c.469G>T(p.Val157Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000711 in 1,209,382 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 22 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000018 ( 0 hom., 0 hem., cov: 22)

Exomes 𝑓: 0.000077 ( 0 hom. 22 hem. )

Consequence

GPR50
NM_004224.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.30

Variant links:

Genes affected

GPR50 (HGNC:4506): (G protein-coupled receptor 50) This gene product belongs to the G-protein coupled receptor 1 family. Even though this protein shares similarity with the melatonin receptors, it does not bind melatonin, however, it inhibits melatonin receptor 1A function through heterodimerization. Polymorphic variants of this gene have been associated with bipolar affective disorder in women. [provided by RefSeq, Jan 2010]

GPR50 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.1397816).

BS2

High Hemizygotes in GnomAdExome4 at 22 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GPR50	NM_004224.3 link	c.469G>T	p.Val157Phe	missense_variant	Exon 2 of 2	ENST00000218316.4	NP_004215.2	Q13585
GPR50	XM_011531216.3 link	c.-40G>T		5_prime_UTR_variant	Exon 1 of 2		XP_011529518.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GPR50	ENST00000218316.4 link	c.469G>T	p.Val157Phe	missense_variant	Exon 2 of 2	1	NM_004224.3	ENSP00000218316.3		Q13585

Frequencies

GnomAD3 genomes

AF:

0.0000179

AC:

AN:

111715

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

33907

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:

0.0000376

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000550

AC:

AN:

181821

Hom.:

AF XY:

0.00

AC XY:

AN XY:

67363

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

AF:

0.0000765

AC:

AN:

1097667

Hom.:

Cov.:

AF XY:

0.0000606

AC XY:

AN XY:

363031

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:

0.0000950

Gnomad4 OTH exome

AF:

0.0000868

GnomAD4 genome

AF:

0.0000179

AC:

AN:

111715

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

33907

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:

0.0000376

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000453

ExAC

AF:

0.0000165

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

Oct 01, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.469G>T (p.V157F) alteration is located in exon 2 (coding exon 2) of the GPR50 gene. This alteration results from a G to T substitution at nucleotide position 469, causing the valine (V) at amino acid position 157 to be replaced by a phenylalanine (F). 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

0.083

BayesDel_addAF

Benign

-0.38

BayesDel_noAF

Benign

-0.73

CADD

Benign

0.0040

DANN

Benign

0.90

DEOGEN2

Uncertain

0.47

FATHMM_MKL

Benign

0.068

LIST_S2

Benign

0.31

M_CAP

Benign

0.0075

MetaRNN

Benign

0.14

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.21

PrimateAI

Benign

0.30

PROVEAN

Uncertain

-3.1

REVEL

Benign

0.047

Sift

Benign

0.096

Sift4G

Benign

0.12

Polyphen

0.0030

Vest4

0.19

MutPred

0.61

Loss of stability (P = 0.1052);

MVP

0.56

MPC

0.20

ClinPred

0.063

GERP RS

-7.5

Varity_R

0.25

gMVP

0.73

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