Genetic Variant GRM5:p.Leu1118Leu (chr11-88508877-C-T) – ACMG Classification: Benign (-10 pts)

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_001143831.3(GRM5):c.3354G>A(p.Leu1118Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000943 in 1,590,080 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000070 ( 0 hom. )

Consequence

GRM5
NM_001143831.3 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.190

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 links:

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

GRM5-AS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.51).

BP6

Variant 11-88508877-C-T is Benign according to our data. Variant chr11-88508877-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 747616.Status of the report is criteria_provided_single_submitter, 1 stars.

BS2

High AC in GnomAd4 at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GRM5	NM_001143831.3 link	c.3354G>A	p.Leu1118Leu	synonymous_variant	Exon 10 of 10	ENST00000305447.5	NP_001137303.1	P41594-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
GRM5	ENST00000305447.5 link	c.3354G>A	p.Leu1118Leu	synonymous_variant	Exon 10 of 10	1	NM_001143831.3	ENSP00000306138.4	P41594-1
GRM5	ENST00000305432.9 link	c.3258G>A	p.Leu1086Leu	synonymous_variant	Exon 8 of 8	1		ENSP00000305905.5	P41594-2
GRM5	ENST00000455756.6 link	c.3258G>A	p.Leu1086Leu	synonymous_variant	Exon 9 of 9	2		ENSP00000405690.2	P41594-2
GRM5-AS1	ENST00000526448.1 link	n.4302C>T		non_coding_transcript_exon_variant	Exon 1 of 6	5

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151998

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000191

AC:

AN:

209806

AF XY:

0.0000175

show subpopulations

Gnomad AFR exome

AF:

0.000182

Gnomad AMR exome

AF:

0.0000658

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:

0.00000695

AC:

AN:

1437972

Hom.:

Cov.:

AF XY:

0.00000841

AC XY:

AN XY:

713694

show subpopulations

African (AFR)

AF:

0.0000943

AC:

AN:

31806

American (AMR)

AF:

0.0000480

AC:

AN:

41662

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25474

East Asian (EAS)

AF:

0.00

AC:

AN:

37926

South Asian (SAS)

AF:

0.00

AC:

AN:

82434

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51786

Middle Eastern (MID)

AF:

0.000350

AC:

AN:

5722

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1101626

Other (OTH)

AF:

0.0000504

AC:

AN:

59536

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.480

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152108

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74368

show subpopulations

African (AFR)

AF:

0.000120

AC:

AN:

41530

American (AMR)

AF:

0.00

AC:

AN:

15298

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5126

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10596

Middle Eastern (MID)

AF:

0.00

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67954

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000227

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Mar 28, 2018

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.51

CADD

Benign

(source)

DANN

Benign

0.95

PhyloP100

0.19

Mutation Taster

=100/0

polymorphism

(source)

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

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11-88508877-C-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over