rs138672528

Positions:

chr20-5314027-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 1P and 0B. PP3

The NM_144773.4(PROKR2):c.343G>A(p.Val115Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000285 in 1,614,164 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

PROKR2
NM_144773.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity no assertion criteria provided P:1U:1

Conservation

PhyloP100: 7.83

Variant links:

Genes affected

PROKR2 (HGNC:15836): (prokineticin receptor 2) Prokineticins are secreted proteins that can promote angiogenesis and induce strong gastrointestinal smooth muscle contraction. The protein encoded by this gene is an integral membrane protein and G protein-coupled receptor for prokineticins. The encoded protein is similar in sequence to GPR73, another G protein-coupled receptor for prokineticins. [provided by RefSeq, Jul 2008]

PROKR2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.81

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PROKR2	NM_144773.4 linkuse as main transcript	c.343G>A	p.Val115Met	missense_variant	2/3	ENST00000678254.1	NP_658986.1
PROKR2	XM_017027646.2 linkuse as main transcript	c.343G>A	p.Val115Met	missense_variant	2/4		XP_016883135.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris
PROKR2	ENST00000678254.1 linkuse as main transcript	c.343G>A	p.Val115Met	missense_variant	2/3		NM_144773.4	ENSP00000504128	P1
PROKR2	ENST00000217270.4 linkuse as main transcript	c.343G>A	p.Val115Met	missense_variant	2/3	1		ENSP00000217270	P1
PROKR2	ENST00000678059.1 linkuse as main transcript	c.235G>A	p.Val79Met	missense_variant	2/3			ENSP00000503366

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152172

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:

0.000385

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000318

AC:

AN:

251458

Hom.:

AF XY:

0.0000515

AC XY:

AN XY:

135912

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:

0.000229

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000294

AC:

AN:

1461874

Hom.:

Cov.:

AF XY:

0.0000344

AC XY:

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000378

Gnomad4 SAS exome

AF:

0.000209

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000719

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152290

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74464

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000386

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000682

Hom.:

Bravo

AF:

0.0000340

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.0000330

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Pathogenic:1Uncertain:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

Hypogonadotropic hypogonadism 3 with or without anosmia

Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Sep 01, 2008

- -

PROKR2-related disorder

Uncertain:1

Uncertain significance, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Feb 29, 2024

The PROKR2 c.343G>A variant is predicted to result in the amino acid substitution p.Val115Met. This variant has been reported in the heterozygous state along with a PROK2 variant in individuals with Kallmann syndrome (Cole et al. 2008. PubMed ID: 18559922; Table S3, Miraoui et al. 2013. PubMed ID: 23643382). Functional studies revealed that this variant exhibits loss of function in three signaling assays when tested alone, however, in at least one signaling assay it could be rescued by WT co-transfection, which is inconsistent with a deleterious effect in the heterozygous state (Table S2, Cox et al. 2018. PubMed ID: 29161432). This variant is reported in 0.023% of alleles in individuals of South Asian descent in gnomAD. Although we suspect this variant may be pathogenic, at this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.63

BayesDel_addAF

Pathogenic

0.17

BayesDel_noAF

Pathogenic

0.30

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.20

Eigen

Pathogenic

0.71

Eigen_PC

Uncertain

0.64

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Pathogenic

0.98

M_CAP

Benign

0.065

MetaRNN

Pathogenic

0.81

MetaSVM

Uncertain

0.17

MutationAssessor

Uncertain

2.5

MutationTaster

Benign

1.0

D;D

PrimateAI

Uncertain

0.73

PROVEAN

Benign

-1.9

REVEL

Pathogenic

0.65

Sift

Uncertain

0.0020

Sift4G

Benign

0.079

Polyphen

1.0

Vest4

0.96

MVP

0.90

ClinPred

0.47

GERP RS

5.3

Varity_R

0.65

gMVP

0.50

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

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