chr1-36802021-C-T
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Variant summary
Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2
The NM_000831.4(GRIK3):c.2590G>A(p.Asp864Asn) variant causes a missense change. The variant allele was found at a frequency of 0.00000372 in 1,612,362 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000034 ( 0 hom. )
Consequence
GRIK3
NM_000831.4 missense
NM_000831.4 missense
Scores
1
4
14
Clinical Significance
Conservation
PhyloP100: 5.78
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 -6 ACMG points.
BP4
Computational evidence support a benign effect (MetaRNN=0.26141942).
BS2
High AC in GnomAdExome4 at 5 AD gene.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
GRIK3 | NM_000831.4 | c.2590G>A | p.Asp864Asn | missense_variant | 16/16 | ENST00000373091.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
GRIK3 | ENST00000373091.8 | c.2590G>A | p.Asp864Asn | missense_variant | 16/16 | 1 | NM_000831.4 | P1 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152186Hom.: 0 Cov.: 33
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GnomAD4 exome AF: 0.00000342 AC: 5AN: 1460176Hom.: 0 Cov.: 30 AF XY: 0.00000275 AC XY: 2AN XY: 726322
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GnomAD4 genome AF: 0.00000657 AC: 1AN: 152186Hom.: 0 Cov.: 33 AF XY: 0.0000135 AC XY: 1AN XY: 74334
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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 | Sep 22, 2023 | The c.2590G>A (p.D864N) alteration is located in exon 16 (coding exon 16) of the GRIK3 gene. This alteration results from a G to A substitution at nucleotide position 2590, causing the aspartic acid (D) at amino acid position 864 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
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Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
CADD
Benign
DANN
Uncertain
DEOGEN2
Benign
T
Eigen
Benign
Eigen_PC
Uncertain
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
D
M_CAP
Benign
T
MetaRNN
Benign
T
MetaSVM
Benign
T
MutationAssessor
Benign
L
MutationTaster
Benign
D
PrimateAI
Uncertain
T
PROVEAN
Benign
N
REVEL
Benign
Sift
Benign
T
Sift4G
Benign
T
Polyphen
P
Vest4
MutPred
Gain of helix (P = 0.0225);
MVP
MPC
ClinPred
D
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Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at