rs758117698

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 3P and 4B. PM2PP2BP4_ModerateBP6_Moderate

The NM_001134407.3(GRIN2A):​c.179C>T​(p.Ala60Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000274 in 1,461,694 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

GRIN2A
NM_001134407.3 missense

Scores

4
15

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 4.89
Variant links:
Genes affected
GRIN2A (HGNC:4585): (glutamate ionotropic receptor NMDA type subunit 2A) This gene encodes a member of the glutamate-gated ion channel protein family. The encoded protein is an N-methyl-D-aspartate (NMDA) receptor subunit. NMDA receptors are both ligand-gated and voltage-dependent, and are involved in long-term potentiation, an activity-dependent increase in the efficiency of synaptic transmission thought to underlie certain kinds of memory and learning. These receptors are permeable to calcium ions, and activation results in a calcium influx into post-synaptic cells, which results in the activation of several signaling cascades. Disruption of this gene is associated with focal epilepsy and speech disorder with or without cognitive disability. Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2014]

Genome browser will be placed here

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;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), GRIN2A. . Gene score misZ 2.8278 (greater than the threshold 3.09). Trascript score misZ 3.7088 (greater than threshold 3.09). GenCC has associacion of gene with early-onset epileptic encephalopathy and intellectual disability due to GRIN2A mutation, Landau-Kleffner syndrome, continuous spikes and waves during sleep, complex neurodevelopmental disorder, rolandic epilepsy-speech dyspraxia syndrome, childhood epilepsy with centrotemporal spikes.
BP4
Computational evidence support a benign effect (MetaRNN=0.16124392).
BP6
Variant 16-10180233-G-A is Benign according to our data. Variant chr16-10180233-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 581763.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GRIN2ANM_001134407.3 linkuse as main transcriptc.179C>T p.Ala60Val missense_variant 2/13 ENST00000330684.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GRIN2AENST00000330684.4 linkuse as main transcriptc.179C>T p.Ala60Val missense_variant 2/131 NM_001134407.3 P1Q12879-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000240
AC:
6
AN:
249864
Hom.:
0
AF XY:
0.0000296
AC XY:
4
AN XY:
135294
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000327
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1461694
Hom.:
0
Cov.:
34
AF XY:
0.00000413
AC XY:
3
AN XY:
727184
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000101
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
Cov.:
32
ExAC
AF:
0.0000330
AC:
4

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Landau-Kleffner syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeFeb 13, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.17
T
BayesDel_noAF
Benign
-0.18
CADD
Benign
21
DANN
Benign
0.97
DEOGEN2
Benign
0.15
T;.;T
Eigen
Benign
-0.30
Eigen_PC
Benign
-0.20
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.73
.;T;T
M_CAP
Uncertain
0.24
D
MetaRNN
Benign
0.16
T;T;T
MetaSVM
Uncertain
-0.0069
T
MutationAssessor
Benign
1.5
L;L;L
MutationTaster
Benign
0.99
N;N;N;N;N
PrimateAI
Uncertain
0.64
T
PROVEAN
Benign
-0.33
N;N;N
REVEL
Benign
0.23
Sift
Benign
0.23
T;T;T
Sift4G
Benign
0.51
T;T;T
Polyphen
0.064
B;.;B
Vest4
0.34
MutPred
0.36
Gain of helix (P = 0.132);Gain of helix (P = 0.132);Gain of helix (P = 0.132);
MVP
0.71
MPC
0.61
ClinPred
0.062
T
GERP RS
3.6
Varity_R
0.086
gMVP
0.59

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: rs758117698; hg19: chr16-10274090; COSMIC: COSV58032342; COSMIC: COSV58032342; API