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16-10180106-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 5P and 2B. PM2PP2PP3_ModerateBP6_Moderate

The NM_001134407.3(GRIN2A):c.306C>A(p.Asp102Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,864 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 Likely benign (★). Synonymous variant affecting the same amino acid position (i.e. D102D) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

GRIN2A
NM_001134407.3 missense

Scores

6
8
4

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.312
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant where missense usually causes diseases, GRIN2A
PP3
MetaRNN computational evidence supports a deleterious effect, 0.881
BP6
Variant 16-10180106-G-T is Benign according to our data. Variant chr16-10180106-G-T is described in ClinVar as [Likely_benign]. Clinvar id is 2012866.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.306C>A p.Asp102Glu missense_variant 2/13 ENST00000330684.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GRIN2AENST00000330684.4 linkuse as main transcriptc.306C>A p.Asp102Glu missense_variant 2/131 NM_001134407.3 P1Q12879-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251384
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135906
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
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:
6.84e-7
AC:
1
AN:
1461864
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
727238
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

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 testingInvitaeSep 07, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.93
BayesDel_addAF
Pathogenic
0.25
D
BayesDel_noAF
Pathogenic
0.21
Cadd
Benign
22
Dann
Uncertain
1.0
DEOGEN2
Uncertain
0.69
D;.;D
Eigen
Benign
0.17
Eigen_PC
Benign
0.037
FATHMM_MKL
Uncertain
0.81
D
M_CAP
Pathogenic
0.55
D
MetaRNN
Pathogenic
0.88
D;D;D
MetaSVM
Uncertain
0.21
D
MutationAssessor
Uncertain
2.5
M;M;M
MutationTaster
Benign
0.98
D;D;D;D;D
PrimateAI
Pathogenic
0.84
D
PROVEAN
Uncertain
-3.2
D;D;D
REVEL
Uncertain
0.64
Sift
Benign
0.050
D;T;D
Sift4G
Uncertain
0.039
D;D;D
Polyphen
0.99
D;.;D
Vest4
0.93
MutPred
0.50
Gain of helix (P = 0.132);Gain of helix (P = 0.132);Gain of helix (P = 0.132);
MVP
0.97
MPC
1.5
ClinPred
0.94
D
GERP RS
-1.7
Varity_R
0.42
gMVP
0.92

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: rs200850130; hg19: chr16-10273963; API