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GeneBe

chr1-36841741-C-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP2BS2

The NM_000831.4(GRIK3):​c.1525G>A​(p.Asp509Asn) variant causes a missense change. The variant allele was found at a frequency of 0.0000093 in 1,613,538 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

GRIK3
NM_000831.4 missense

Scores

9
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.97
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP2
Missense variant where missense usually causes diseases, GRIK3
BS2
High AC in GnomAdExome4 at 13 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GRIK3NM_000831.4 linkuse as main transcriptc.1525G>A p.Asp509Asn missense_variant 10/16 ENST00000373091.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GRIK3ENST00000373091.8 linkuse as main transcriptc.1525G>A p.Asp509Asn missense_variant 10/161 NM_000831.4 P1Q13003-1
GRIK3ENST00000373093.4 linkuse as main transcriptc.1525G>A p.Asp509Asn missense_variant 10/151 Q13003-2

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152174
Hom.:
0
Cov.:
33
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000797
AC:
2
AN:
251084
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135730
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000882
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000890
AC:
13
AN:
1461364
Hom.:
0
Cov.:
32
AF XY:
0.00000825
AC XY:
6
AN XY:
727060
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000810
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152174
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74324
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000658
Hom.:
0
Bravo
AF:
0.0000151
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ExAC
AF:
0.0000165
AC:
2

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 GeneticsJun 29, 2023The c.1525G>A (p.D509N) alteration is located in exon 10 (coding exon 10) of the GRIK3 gene. This alteration results from a G to A substitution at nucleotide position 1525, causing the aspartic acid (D) at amino acid position 509 to be replaced by an asparagine (N). 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
-0.37
T
BayesDel_noAF
Benign
-0.60
CADD
Pathogenic
32
DANN
Uncertain
1.0
DEOGEN2
Benign
0.40
T;.
Eigen
Uncertain
0.56
Eigen_PC
Uncertain
0.57
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.92
D;D
M_CAP
Benign
0.013
T
MetaRNN
Uncertain
0.45
T;T
MetaSVM
Benign
-1.2
T
MutationAssessor
Benign
1.9
L;L
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.76
T
PROVEAN
Uncertain
-3.5
D;D
REVEL
Benign
0.23
Sift
Uncertain
0.0020
D;D
Sift4G
Benign
0.18
T;T
Polyphen
0.97
D;.
Vest4
0.39
MVP
0.53
MPC
0.84
ClinPred
0.89
D
GERP RS
4.9
Varity_R
0.69
gMVP
0.64

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.

Other links and lift over

dbSNP: rs746494649; hg19: chr1-37307342; COSMIC: COSV66138660; API