11-88508975-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2PP2BP4_Moderate

The NM_001143831.3(GRM5):c.3256A>C(p.Ser1086Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000252 in 1,585,742 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

GRM5
NM_001143831.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.564

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 links:

GRM5-AS1 (HGNC:40265): (GRM5 antisense RNA 1)

GRM5-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant where missense usually causes diseases, GRM5

BP4

Computational evidence support a benign effect (MetaRNN=0.13573596).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GRM5	NM_001143831.3 linkuse as main transcript	c.3256A>C	p.Ser1086Arg	missense_variant	10/10	ENST00000305447.5
GRM5-AS1	NR_049724.1 linkuse as main transcript	n.4364+36T>G		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GRM5	ENST00000305447.5 linkuse as main transcript	c.3256A>C	p.Ser1086Arg	missense_variant	10/10	1	NM_001143831.3	A2	P41594-1
GRM5	ENST00000305432.9 linkuse as main transcript	c.3160A>C	p.Ser1054Arg	missense_variant	8/8	1		P2	P41594-2
GRM5-AS1	ENST00000526448.1 linkuse as main transcript	n.4364+36T>G		intron_variant, non_coding_transcript_variant		5
GRM5	ENST00000455756.6 linkuse as main transcript	c.3160A>C	p.Ser1054Arg	missense_variant	9/9	2		P2	P41594-2

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

152086

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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

GnomAD3 exomes

AF:

0.0000102

AC:

AN:

196668

Hom.:

AF XY:

0.00000944

AC XY:

AN XY:

105896

show subpopulations

Gnomad AFR exome

AF:

0.000181

Gnomad AMR exome

AF:

0.00

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000140

AC:

AN:

1433656

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

710194

show subpopulations

Gnomad4 AFR exome

AF:

0.0000304

Gnomad4 AMR exome

AF:

0.00

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000132

AC:

AN:

152086

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74286

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000151

ExAC

AF:

0.0000166

AC:

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 submitter

clinical testing

Ambry Genetics

Oct 22, 2021

The c.3256A>C (p.S1086R) alteration is located in exon 9 (coding exon 9) of the GRM5 gene. This alteration results from a A to C substitution at nucleotide position 3256, causing the serine (S) at amino acid position 1086 to be replaced by an arginine (R). 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

0.17

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.33

Cadd

Benign

Dann

Uncertain

0.99

Eigen

Benign

-0.89

Eigen_PC

Benign

-0.84

FATHMM_MKL

Benign

0.30

LIST_S2

Benign

0.66

T;.;T

M_CAP

Pathogenic

0.80

MetaRNN

Benign

0.14

T;T;T

MetaSVM

Benign

-0.65

MutationTaster

Benign

1.0

D;N;N;N;N

PrimateAI

Uncertain

0.64

PROVEAN

Benign

-1.2

N;N;N

REVEL

Benign

0.16

Sift

Benign

0.045

D;D;D

Sift4G

Benign

0.33

T;T;D

Polyphen

0.34

B;B;B

Vest4

0.13

MutPred

0.33

.;.;Loss of glycosylation at S1086 (P = 0.0207);

MVP

0.26

ClinPred

0.073

GERP RS

3.8

Varity_R

0.12

gMVP

0.61

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