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GeneBe

12-12909024-G-T

Variant summary

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

The NM_003979.4(GPRC5A):c.775G>T(p.Ala259Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000756 in 1,613,502 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000042 ( 0 hom. )

Consequence

GPRC5A
NM_003979.4 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.0400
Variant links:
Genes affected
GPRC5A (HGNC:9836): (G protein-coupled receptor class C group 5 member A) This gene encodes a member of the type 3 G protein-coupling receptor family, characterized by the signature 7-transmembrane domain motif. The encoded protein may be involved in interaction between retinoid acid and G protein signalling pathways. Retinoic acid plays a critical role in development, cellular growth, and differentiation. This gene may play a role in embryonic development and epithelial cell differentiation. [provided by RefSeq, Jul 2008]

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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=0.016605824).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GPRC5ANM_003979.4 linkuse as main transcriptc.775G>T p.Ala259Ser missense_variant 2/4 ENST00000014914.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GPRC5AENST00000014914.6 linkuse as main transcriptc.775G>T p.Ala259Ser missense_variant 2/41 NM_003979.4 P1

Frequencies

GnomAD3 genomes
AF:
0.000394
AC:
60
AN:
152182
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00142
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000132
AC:
33
AN:
250858
Hom.:
0
AF XY:
0.000103
AC XY:
14
AN XY:
135600
show subpopulations
Gnomad AFR exome
AF:
0.00178
Gnomad AMR exome
AF:
0.0000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000424
AC:
62
AN:
1461202
Hom.:
0
Cov.:
32
AF XY:
0.0000344
AC XY:
25
AN XY:
726914
show subpopulations
Gnomad4 AFR exome
AF:
0.00155
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000993
GnomAD4 genome
AF:
0.000394
AC:
60
AN:
152300
Hom.:
0
Cov.:
32
AF XY:
0.000443
AC XY:
33
AN XY:
74466
show subpopulations
Gnomad4 AFR
AF:
0.00142
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000595
Hom.:
0
Bravo
AF:
0.000529
ESP6500AA
AF:
0.00227
AC:
10
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000157
AC:
19
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

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 submitterclinical testingAmbry GeneticsJan 04, 2024The c.775G>T (p.A259S) alteration is located in exon 2 (coding exon 1) of the GPRC5A gene. This alteration results from a G to T substitution at nucleotide position 775, causing the alanine (A) at amino acid position 259 to be replaced by a serine (S). 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
0.14
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.23
Cadd
Benign
7.0
Dann
Benign
0.94
DEOGEN2
Benign
0.14
T;T;.
Eigen
Benign
-0.93
Eigen_PC
Benign
-1.0
FATHMM_MKL
Benign
0.13
N
LIST_S2
Benign
0.82
T;T;T
M_CAP
Benign
0.035
D
MetaRNN
Benign
0.017
T;T;T
MetaSVM
Benign
-0.65
T
MutationAssessor
Benign
1.9
M;.;.
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.22
T
PROVEAN
Benign
-0.55
N;N;.
REVEL
Uncertain
0.35
Sift
Uncertain
0.014
D;D;.
Sift4G
Benign
0.15
T;D;.
Polyphen
0.35
B;.;.
Vest4
0.20
MVP
0.69
MPC
0.046
ClinPred
0.0072
T
GERP RS
-1.5
Varity_R
0.17
gMVP
0.44

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: rs149446775; hg19: chr12-13061958; API