X-16124195-G-A

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP3BS2

The NM_005314.3(GRPR):c.242G>A(p.Ser81Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00027 in 1,209,585 control chromosomes in the GnomAD database, including 1 homozygotes. There are 104 hemizygotes in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00019 ( 0 hom., 6 hem., cov: 23)

Exomes 𝑓: 0.00028 ( 1 hom. 98 hem. )

Consequence

GRPR
NM_005314.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1B:2

Conservation

PhyloP100: 10.0

Variant links:

Genes affected

GRPR (HGNC:4609): (gastrin releasing peptide receptor) Gastrin-releasing peptide (GRP) regulates numerous functions of the gastrointestinal and central nervous systems, including release of gastrointestinal hormones, smooth muscle cell contraction, and epithelial cell proliferation and is a potent mitogen for neoplastic tissues. The effects of GRP are mediated through the gastrin-releasing peptide receptor. This receptor is a glycosylated, 7-transmembrane G-protein coupled receptor that activates the phospholipase C signaling pathway. The receptor is aberrantly expressed in numerous cancers such as those of the lung, colon, and prostate. An individual with autism and multiple exostoses was found to have a balanced translocation between chromosome 8 and a chromosome X breakpoint located within the gastrin-releasing peptide receptor gene. [provided by RefSeq, Jul 2008]

GRPR links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.794

BS2

High Hemizygotes in GnomAd4 at 6 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GRPR	NM_005314.3 link	c.242G>A	p.Ser81Asn	missense_variant	Exon 1 of 3	ENST00000380289.3	NP_005305.1	P30550X5D7H2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GRPR	ENST00000380289.3 link	c.242G>A	p.Ser81Asn	missense_variant	Exon 1 of 3	1	NM_005314.3	ENSP00000369643.2		P30550

Frequencies

GnomAD3 genomes

AF:

0.000188

AC:

AN:

111915

Hom.:

Cov.:

AF XY:

0.000176

AC XY:

AN XY:

34083

show subpopulations

Gnomad AFR

AF:

0.0000325

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000189

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00417

Gnomad NFE

AF:

0.000282

Gnomad OTH

AF:

0.00133

GnomAD3 exomes

AF:

0.000142

AC:

AN:

182973

Hom.:

AF XY:

0.000222

AC XY:

AN XY:

67575

show subpopulations

Gnomad AFR exome

AF:

0.0000760

Gnomad AMR exome

AF:

0.000109

Gnomad ASJ exome

AF:

0.000134

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000258

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000278

AC:

305

AN:

1097619

Hom.:

Cov.:

AF XY:

0.000270

AC XY:

AN XY:

362985

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000114

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:

0.000340

Gnomad4 OTH exome

AF:

0.000326

GnomAD4 genome

AF:

0.000188

AC:

AN:

111966

Hom.:

Cov.:

AF XY:

0.000176

AC XY:

AN XY:

34144

show subpopulations

Gnomad4 AFR

AF:

0.0000325

Gnomad4 AMR

AF:

0.000189

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000282

Gnomad4 OTH

AF:

0.00131

Alfa

AF:

0.000434

Hom.:

Bravo

AF:

0.000174

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000692

AC:

ESP6500AA

AF:

0.000261

AC:

ESP6500EA

AF:

0.000297

AC:

ExAC

AF:

0.000115

AC:

EpiCase

AF:

0.000218

EpiControl

AF:

0.000178

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1Benign:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1Benign:1

Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Dec 19, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.242G>A (p.S81N) alteration is located in exon 1 (coding exon 1) of the GRPR gene. This alteration results from a G to A substitution at nucleotide position 242, causing the serine (S) at amino acid position 81 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided

Benign:1

Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.59

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.44

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.41

FATHMM_MKL

Uncertain

0.97

LIST_S2

Benign

0.71

M_CAP

Pathogenic

0.63

MetaRNN

Pathogenic

0.79

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.94

PrimateAI

Uncertain

0.79

PROVEAN

Uncertain

-2.4

REVEL

Uncertain

0.30

Sift

Benign

0.16

Sift4G

Benign

0.17

Polyphen

0.98

Vest4

0.74

MVP

0.62

MPC

1.1

ClinPred

0.26

GERP RS

6.0

Varity_R

0.60

gMVP

0.84

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