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GeneBe

12-13562863-T-C

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 3P and 9B. PM2PP2BP4BP6_Very_Strong

The NM_000834.5(GRIN2B):ā€‹c.4375A>Gā€‹(p.Asn1459Asp) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,842 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (ā˜…ā˜…).

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

GRIN2B
NM_000834.5 missense

Scores

6
10

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 4.20
Variant links:
Genes affected
GRIN2B (HGNC:4586): (glutamate ionotropic receptor NMDA type subunit 2B) This gene encodes a member of the N-methyl-D-aspartate (NMDA) receptor family within the ionotropic glutamate receptor superfamily. The encoded protein is a subunit of the NMDA receptor ion channel which acts as an agonist binding site for glutamate. The NMDA receptors mediate a slow calcium-permeable component of excitatory synaptic transmission in the central nervous system. The NMDA receptors are heterotetramers of seven genetically encoded, differentially expressed subunits including NR1 (GRIN1), NR2 (GRIN2A, GRIN2B, GRIN2C, or GRIN2D) and NR3 (GRIN3A or GRIN3B). The early expression of this gene in development suggests a role in brain development, circuit formation, synaptic plasticity, and cellular migration and differentiation. Naturally occurring mutations within this gene are associated with neurodevelopmental disorders including autism spectrum disorder, attention deficit hyperactivity disorder, epilepsy, and schizophrenia. [provided by RefSeq, Aug 2017]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant where missense usually causes diseases, GRIN2B
BP4
Computational evidence support a benign effect (MetaRNN=0.36348122).
BP6
Variant 12-13562863-T-C is Benign according to our data. Variant chr12-13562863-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 847028.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GRIN2BNM_000834.5 linkuse as main transcriptc.4375A>G p.Asn1459Asp missense_variant 14/14 ENST00000609686.4
GRIN2BNM_001413992.1 linkuse as main transcriptc.4375A>G p.Asn1459Asp missense_variant 15/15
GRIN2BXM_005253351.3 linkuse as main transcriptc.2161A>G p.Asn721Asp missense_variant 4/4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GRIN2BENST00000609686.4 linkuse as main transcriptc.4375A>G p.Asn1459Asp missense_variant 14/141 NM_000834.5 P1
GRIN2BENST00000637214.1 linkuse as main transcriptc.69+45740A>G intron_variant 5

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000795
AC:
2
AN:
251492
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135920
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000578
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:
1461842
Hom.:
0
Cov.:
30
AF XY:
0.00000138
AC XY:
1
AN XY:
727226
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.:
33

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Intellectual disability, autosomal dominant 6;C4015316:Developmental and epileptic encephalopathy, 27 Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeDec 21, 2023- -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxMar 18, 2021In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.27
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.26
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.50
D
Eigen
Uncertain
0.19
Eigen_PC
Uncertain
0.30
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Benign
0.75
T
M_CAP
Benign
0.0018
T
MetaRNN
Benign
0.36
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.6
L
MutationTaster
Benign
0.98
D
PrimateAI
Uncertain
0.73
T
Sift4G
Benign
0.12
T
Polyphen
0.70
P
Vest4
0.48
MutPred
0.42
Gain of ubiquitination at K1460 (P = 0.0314);
MVP
0.67
MPC
0.97
ClinPred
0.27
T
GERP RS
5.0
Varity_R
0.28
gMVP
0.69

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: rs1384338205; hg19: chr12-13715797; API