rs200728683

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001143831.3(GRM5):​c.3416C>T​(p.Ala1139Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000197 in 1,525,584 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000015 ( 0 hom. )

Consequence

GRM5
NM_001143831.3 missense

Scores

1
1
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.950

Publications

0 publications found
Variant links:
Genes affected
GRM5 (HGNC:4597): (glutamate metabotropic receptor 5) This gene encodes a member of the G-protein coupled receptor 3 protein family. The encoded protein is a metabatropic glutamate receptor, whose signaling activates a phosphatidylinositol-calcium second messenger system. This protein may be involved in the regulation of neural network activity and synaptic plasticity. Glutamatergic neurotransmission is involved in most aspects of normal brain function and can be perturbed in many neuropathologic conditions. A pseudogene of this gene has been defined on chromosome 11. Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2014]
GRM5-AS1 (HGNC:40265): (GRM5 antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.13692856).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
GRM5NM_001143831.3 linkc.3416C>T p.Ala1139Val missense_variant Exon 10 of 10 ENST00000305447.5 NP_001137303.1 P41594-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
GRM5ENST00000305447.5 linkc.3416C>T p.Ala1139Val missense_variant Exon 10 of 10 1 NM_001143831.3 ENSP00000306138.4 P41594-1
GRM5ENST00000305432.9 linkc.3320C>T p.Ala1107Val missense_variant Exon 8 of 8 1 ENSP00000305905.5 P41594-2
GRM5ENST00000455756.6 linkc.3320C>T p.Ala1107Val missense_variant Exon 9 of 9 2 ENSP00000405690.2 P41594-2
GRM5-AS1ENST00000526448.1 linkn.4240G>A non_coding_transcript_exon_variant Exon 1 of 6 5

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
151930
Hom.:
0
Cov.:
32
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00
AC:
0
AN:
118410
AF XY:
0.00
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000146
AC:
2
AN:
1373654
Hom.:
0
Cov.:
30
AF XY:
0.00000148
AC XY:
1
AN XY:
677648
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
28532
American (AMR)
AF:
0.00
AC:
0
AN:
32680
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
23892
East Asian (EAS)
AF:
0.00
AC:
0
AN:
32310
South Asian (SAS)
AF:
0.00
AC:
0
AN:
76910
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
47818
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5562
European-Non Finnish (NFE)
AF:
0.00000187
AC:
2
AN:
1069030
Other (OTH)
AF:
0.00
AC:
0
AN:
56920
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
151930
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74210
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41390
American (AMR)
AF:
0.00
AC:
0
AN:
15264
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5148
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10574
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
67952
Other (OTH)
AF:
0.00
AC:
0
AN:
2084
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.0000186
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Mar 17, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.3416C>T (p.A1139V) alteration is located in exon 9 (coding exon 9) of the GRM5 gene. This alteration results from a C to T substitution at nucleotide position 3416, causing the alanine (A) at amino acid position 1139 to be replaced by a valine (V). 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
0.090
BayesDel_addAF
Benign
-0.035
T
BayesDel_noAF
Benign
-0.29
CADD
Benign
15
DANN
Benign
0.97
DEOGEN2
Benign
0.097
.;.;T
Eigen
Benign
-0.56
Eigen_PC
Benign
-0.49
FATHMM_MKL
Benign
0.22
N
LIST_S2
Benign
0.53
T;.;T
M_CAP
Pathogenic
0.66
D
MetaRNN
Benign
0.14
T;T;T
MetaSVM
Benign
-0.79
T
MutationAssessor
Benign
1.1
.;.;L
PhyloP100
0.95
PrimateAI
Uncertain
0.78
T
PROVEAN
Benign
-0.14
N;N;N
REVEL
Benign
0.27
Sift
Benign
0.34
T;T;T
Sift4G
Benign
0.51
T;T;T
Polyphen
0.23
B;B;B
Vest4
0.076
MutPred
0.15
.;.;Loss of loop (P = 0.0512);
MVP
0.46
ClinPred
0.27
T
GERP RS
4.1
Varity_R
0.050
gMVP
0.38
Mutation Taster
=84/16
polymorphism

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

Other links and lift over

dbSNP: rs200728683; hg19: chr11-88241983; API