Variant X-123403094-G-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The ENST00000620443.2(GRIA3):c.1181G>T(p.Arg394Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000892 in 112,111 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R394Q) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000089 ( 0 hom., 0 hem., cov: 22)

Exomes 𝑓: 0.0 ( 0 hom. 0 hem. )

Failed GnomAD Quality Control

Consequence

GRIA3
ENST00000620443.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 9.60

Variant links:

Genes affected

GRIA3 (HGNC:4573): (glutamate ionotropic receptor AMPA type subunit 3) Glutamate receptors are the predominant excitatory neurotransmitter receptors in the mammalian brain and are activated in a variety of normal neurophysiologic processes. These receptors are heteromeric protein complexes composed of multiple subunits, arranged to form ligand-gated ion channels. The classification of glutamate receptors is based on their activation by different pharmacologic agonists. The subunit encoded by this gene belongs to a family of AMPA (alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionate)-sensitive glutamate receptors, and is subject to RNA editing (AGA->GGA; R->G). Alternative splicing at this locus results in different isoforms, which may vary in their signal transduction properties. [provided by RefSeq, Jul 2008]

GRIA3 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.855

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GRIA3	NM_000828.5 linkuse as main transcript	c.1181G>T	p.Arg394Leu	missense_variant	8/16	ENST00000622768.5	NP_000819.4
GRIA3	NM_007325.5 linkuse as main transcript	c.1181G>T	p.Arg394Leu	missense_variant	8/16	ENST00000620443.2	NP_015564.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GRIA3	ENST00000620443.2 linkuse as main transcript	c.1181G>T	p.Arg394Leu	missense_variant	8/16	1	NM_007325.5	ENSP00000478489	P4	P42263-2
GRIA3	ENST00000622768.5 linkuse as main transcript	c.1181G>T	p.Arg394Leu	missense_variant	8/16	5	NM_000828.5	ENSP00000481554	A1	P42263-1
GRIA3	ENST00000620581.4 linkuse as main transcript	c.1181G>T	p.Arg394Leu	missense_variant, NMD_transcript_variant	8/17	1		ENSP00000481875

Frequencies

GnomAD3 genomes

AF:

0.00000892

AC:

AN:

112111

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

34343

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000945

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

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

924764

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

251248

Gnomad4 AFR exome

AF:

0.00

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:

0.00000892

AC:

AN:

112111

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

34343

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000945

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

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.22

BayesDel_addAF

Pathogenic

0.56

BayesDel_noAF

Pathogenic

0.56

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.30

T;T;T;.

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.95

D;D;.;D

M_CAP

Pathogenic

0.35

MetaRNN

Pathogenic

0.85

D;D;D;D

MetaSVM

Benign

-1.1

MutationAssessor

Pathogenic

3.2

M;.;M;M

MutationTaster

Benign

1.0

D;D;D;D;D

PrimateAI

Uncertain

0.71

REVEL

Uncertain

0.48

Sift4G

Benign

0.24

T;T;T;T

Polyphen

0.99

D;.;D;D

Vest4

0.95

MutPred

0.48

Loss of MoRF binding (P = 0.0269);Loss of MoRF binding (P = 0.0269);Loss of MoRF binding (P = 0.0269);Loss of MoRF binding (P = 0.0269);

MVP

1.0

ClinPred

0.98

GERP RS

5.7

Varity_R

0.63

gMVP

0.81

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over