chr11-120831942-C-T

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 3P and 4B. PM2PP3BS2

The NM_014619.5(GRIK4):​c.602C>T​(p.Thr201Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,672 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

GRIK4
NM_014619.5 missense

Scores

8
9
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.56
Variant links:
Genes affected
GRIK4 (HGNC:4582): (glutamate ionotropic receptor kainate type subunit 4) This gene encodes a protein that belongs to the glutamate-gated ionic channel family. Glutamate functions as the major excitatory neurotransmitter in the central nervous system through activation of ligand-gated ion channels and G protein-coupled membrane receptors. The protein encoded by this gene forms functional heteromeric kainate-preferring ionic channels with the subunits encoded by related gene family members. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2013]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.837
BS2
High AC in GnomAdExome4 at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GRIK4NM_014619.5 linkuse as main transcriptc.602C>T p.Thr201Ile missense_variant 7/21 ENST00000527524.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GRIK4ENST00000527524.8 linkuse as main transcriptc.602C>T p.Thr201Ile missense_variant 7/212 NM_014619.5 P1
GRIK4ENST00000438375.2 linkuse as main transcriptc.602C>T p.Thr201Ile missense_variant 6/201 P1
GRIK4ENST00000533291.5 linkuse as main transcriptn.1000C>T non_coding_transcript_exon_variant 7/181
GRIK4ENST00000638419.1 linkuse as main transcriptc.602C>T p.Thr201Ile missense_variant 7/215 P1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1461672
Hom.:
0
Cov.:
32
AF XY:
0.00000275
AC XY:
2
AN XY:
727160
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000360
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31

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 GeneticsDec 03, 2021The c.602C>T (p.T201I) alteration is located in exon 5 (coding exon 5) of the GRIK4 gene. This alteration results from a C to T substitution at nucleotide position 602, causing the threonine (T) at amino acid position 201 to be replaced by an isoleucine (I). 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
Pathogenic
0.59
BayesDel_addAF
Pathogenic
0.23
D
BayesDel_noAF
Uncertain
0.10
CADD
Pathogenic
27
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.32
T;T;T
Eigen
Pathogenic
0.74
Eigen_PC
Pathogenic
0.71
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.92
.;.;D
M_CAP
Uncertain
0.23
D
MetaRNN
Pathogenic
0.84
D;D;D
MetaSVM
Uncertain
0.47
D
MutationAssessor
Uncertain
2.1
M;M;M
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.71
T
PROVEAN
Uncertain
-3.0
D;.;D
REVEL
Pathogenic
0.75
Sift
Uncertain
0.014
D;.;D
Sift4G
Uncertain
0.058
T;.;T
Polyphen
1.0
D;D;D
Vest4
0.83
MutPred
0.45
Loss of phosphorylation at T201 (P = 0.0137);Loss of phosphorylation at T201 (P = 0.0137);Loss of phosphorylation at T201 (P = 0.0137);
MVP
0.70
MPC
1.4
ClinPred
0.99
D
GERP RS
4.8
Varity_R
0.32
gMVP
0.75

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr11-120702651; API