rs35125534

Variant names:

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_000834.5(GRIN2B):c.2691C>T(p.Asn897Asn) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00189 in 1,614,170 control chromosomes in the GnomAD database, including 51 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.010 ( 34 hom., cov: 33)

Exomes 𝑓: 0.0010 ( 17 hom. )

Consequence

GRIN2B
NM_000834.5 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:7O:1

Conservation

PhyloP100: 2.84

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]

GRIN2B links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.6).

BP6

Variant 12-13564547-G-A is Benign according to our data. Variant chr12-13564547-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 98436.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=2.84 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0104 (1579/152328) while in subpopulation AFR AF= 0.0358 (1487/41578). AF 95% confidence interval is 0.0343. There are 34 homozygotes in gnomad4. There are 755 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High AC in GnomAd4 at 1579 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GRIN2B	NM_000834.5 link	c.2691C>T	p.Asn897Asn	synonymous_variant	Exon 14 of 14	ENST00000609686.4	NP_000825.2	Q13224A0A8D9PHB2
GRIN2B	NM_001413992.1 link	c.2691C>T	p.Asn897Asn	synonymous_variant	Exon 15 of 15		NP_001400921.1
GRIN2B	XM_005253351.3 link	c.477C>T	p.Asn159Asn	synonymous_variant	Exon 4 of 4		XP_005253408.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GRIN2B	ENST00000609686.4 link	c.2691C>T	p.Asn897Asn	synonymous_variant	Exon 14 of 14	1	NM_000834.5	ENSP00000477455.1		Q13224
GRIN2B	ENST00000637214.1 link	c.69+44056C>T		intron_variant	Intron 1 of 1	5		ENSP00000489997.1		A0A1B0GU78

Frequencies

GnomAD3 genomes

AF:

0.0104

AC:

1577

AN:

152210

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0358

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00458

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000132

Gnomad OTH

AF:

0.00574

GnomAD3 exomes

AF:

0.00262

AC:

659

AN:

251386

Hom.:

AF XY:

0.00207

AC XY:

281

AN XY:

135880

show subpopulations

Gnomad AFR exome

AF:

0.0343

Gnomad AMR exome

AF:

0.00225

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000980

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000106

Gnomad OTH exome

AF:

0.00147

GnomAD4 exome

AF:

0.00100

AC:

1468

AN:

1461842

Hom.:

Cov.:

AF XY:

0.000866

AC XY:

630

AN XY:

727226

show subpopulations

Gnomad4 AFR exome

AF:

0.0344

Gnomad4 AMR exome

AF:

0.00230

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000927

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000630

Gnomad4 OTH exome

AF:

0.00200

GnomAD4 genome

AF:

0.0104

AC:

1579

AN:

152328

Hom.:

Cov.:

AF XY:

0.0101

AC XY:

755

AN XY:

74482

show subpopulations

Gnomad4 AFR

AF:

0.0358

Gnomad4 AMR

AF:

0.00457

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000132

Gnomad4 OTH

AF:

0.00568

Alfa

AF:

0.00555

Hom.:

Bravo

AF:

0.0116

Asia WGS

AF:

0.00289

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000296

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:7Other:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2Other:1

Psychiatry Genetics Yale University

Significance: not provided

Review Status: no classification provided

Collection Method: literature only

- -

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Oct 25, 2017

Athena Diagnostics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not specified

Benign:2

Genetic Services Laboratory, University of Chicago

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

Likely benign based on allele frequency in 1000 Genomes Project or ESP global frequency and its presence in a patient with a rare or unrelated disease phenotype. NOT Sanger confirmed. -

Mar 06, 2014

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Intellectual disability, autosomal dominant 6;C4015316:Developmental and epileptic encephalopathy, 27

Benign:2

Sep 27, 2021

Fulgent Genetics, Fulgent Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Feb 02, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Inborn genetic diseases

Benign:1

Aug 05, 2016

Ambry Genetics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.60

CADD

Benign

5.9

DANN

Benign

0.73

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over