1-36805150-C-T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The NM_000831.4(GRIK3):​c.2402G>A​(p.Arg801Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000161 in 1,614,100 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

GRIK3
NM_000831.4 missense

Scores

1
7
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.83
Variant links:
Genes affected
GRIK3 (HGNC:4581): (glutamate ionotropic receptor kainate 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. This gene product belongs to the kainate family of glutamate receptors, which are composed of four subunits and function as ligand-activated ion channels. It is not certain if the subunit encoded by this gene is subject to RNA editing as the other 2 family members (GRIK1 and GRIK2). A Ser310Ala polymorphism has been associated with schizophrenia, and there are conflicting reports of its association with the pathogenesis of delirium tremens in alcoholics. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.3217321).
BS2
High AC in GnomAdExome4 at 24 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GRIK3NM_000831.4 linkuse as main transcriptc.2402G>A p.Arg801Gln missense_variant 15/16 ENST00000373091.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GRIK3ENST00000373091.8 linkuse as main transcriptc.2402G>A p.Arg801Gln missense_variant 15/161 NM_000831.4 P1Q13003-1
GRIK3ENST00000373093.4 linkuse as main transcriptc.2402G>A p.Arg801Gln missense_variant 15/151 Q13003-2

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152218
Hom.:
0
Cov.:
32
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:
0.0000199
AC:
5
AN:
251354
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135876
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000164
AC:
24
AN:
1461882
Hom.:
0
Cov.:
31
AF XY:
0.0000151
AC XY:
11
AN XY:
727244
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000189
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152218
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74356
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:
0.00000378
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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 GeneticsAug 04, 2023The c.2402G>A (p.R801Q) alteration is located in exon 15 (coding exon 15) of the GRIK3 gene. This alteration results from a G to A substitution at nucleotide position 2402, causing the arginine (R) at amino acid position 801 to be replaced by a glutamine (Q). 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
0.088
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.46
CADD
Pathogenic
32
DANN
Uncertain
1.0
DEOGEN2
Benign
0.31
T;.
Eigen
Uncertain
0.40
Eigen_PC
Uncertain
0.40
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.96
D;D
M_CAP
Benign
0.0097
T
MetaRNN
Benign
0.32
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.0
L;L
MutationTaster
Benign
0.97
D;D
PrimateAI
Uncertain
0.62
T
PROVEAN
Benign
-2.2
N;N
REVEL
Benign
0.10
Sift
Uncertain
0.0060
D;D
Sift4G
Uncertain
0.039
D;D
Polyphen
0.98
D;.
Vest4
0.30
MVP
0.35
MPC
1.2
ClinPred
0.61
D
GERP RS
3.7
Varity_R
0.38
gMVP
0.54

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs374146373; hg19: chr1-37270751; COSMIC: COSV66146701; API