NM_005314.3:c.782G>A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PP3_ModerateBS2

The NM_005314.3(GRPR):​c.782G>A​(p.Arg261Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000664 in 1,205,653 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 3 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 0.0000090 ( 0 hom., 1 hem., cov: 23)
Exomes 𝑓: 0.0000064 ( 0 hom. 2 hem. )

Consequence

GRPR
NM_005314.3 missense

Scores

7
6
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.60
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.892
BS2
High Hemizygotes in GnomAdExome4 at 2 gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
GRPRNM_005314.3 linkc.782G>A p.Arg261Gln missense_variant Exon 3 of 3 ENST00000380289.3 NP_005305.1 P30550X5D7H2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
GRPRENST00000380289.3 linkc.782G>A p.Arg261Gln missense_variant Exon 3 of 3 1 NM_005314.3 ENSP00000369643.2 P30550

Frequencies

GnomAD3 genomes
AF:
0.00000902
AC:
1
AN:
110879
Hom.:
0
Cov.:
23
AF XY:
0.0000302
AC XY:
1
AN XY:
33121
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:
0.0000189
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000109
AC:
2
AN:
183197
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
67705
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000365
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:
0.0000122
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000639
AC:
7
AN:
1094774
Hom.:
0
Cov.:
30
AF XY:
0.00000555
AC XY:
2
AN XY:
360184
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000284
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:
0.00000715
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000902
AC:
1
AN:
110879
Hom.:
0
Cov.:
23
AF XY:
0.0000302
AC XY:
1
AN XY:
33121
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:
0.0000189
Gnomad4 OTH
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
Nov 23, 2024
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The c.782G>A (p.R261Q) alteration is located in exon 3 (coding exon 3) of the GRPR gene. This alteration results from a G to A substitution at nucleotide position 782, causing the arginine (R) at amino acid position 261 to be replaced by a glutamine (Q). 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
0.22
BayesDel_addAF
Pathogenic
0.21
D
BayesDel_noAF
Pathogenic
0.18
CADD
Pathogenic
29
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.41
T
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.97
D
M_CAP
Pathogenic
0.66
D
MetaRNN
Pathogenic
0.89
D
MetaSVM
Benign
-0.59
T
MutationAssessor
Pathogenic
2.9
M
PrimateAI
Uncertain
0.68
T
PROVEAN
Uncertain
-2.6
D
REVEL
Uncertain
0.45
Sift
Uncertain
0.0050
D
Sift4G
Uncertain
0.010
D
Polyphen
1.0
D
Vest4
0.78
MutPred
0.65
Loss of MoRF binding (P = 0.0169);
MVP
0.31
MPC
1.2
ClinPred
0.89
D
GERP RS
5.2
Varity_R
0.70
gMVP
0.85

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.

Other links and lift over

dbSNP: rs1246452682; hg19: chrX-16170395; API