Variant 19-1000601-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_138690.3(GRIN3B):c.164C>T(p.Ala55Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00106 in 1,044,186 control chromosomes in the GnomAD database, including 2 homozygotes. 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00038 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0012 ( 2 hom. )

Consequence

GRIN3B
NM_138690.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.0460

Variant links:

Genes affected

GRIN3B (HGNC:16768): (glutamate ionotropic receptor NMDA type subunit 3B) The protein encoded by this gene is a subunit of an N-methyl-D-aspartate (NMDA) receptor. The encoded protein is found primarily in motor neurons, where it forms a heterotetramer with GRIN1 to create an excitatory glycine receptor. Variations in this gene have been proposed to be linked to schizophrenia. [provided by RefSeq, Nov 2015]

GRIN3B links:

(HGNC:):

links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.082687825).

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GRIN3B	NM_138690.3 linkuse as main transcript	c.164C>T	p.Ala55Val	missense_variant	1/9	ENST00000234389.3	NP_619635.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GRIN3B	ENST00000234389.3 linkuse as main transcript	c.164C>T	p.Ala55Val	missense_variant	1/9	1	NM_138690.3	ENSP00000234389	P1
	ENST00000588380.1 linkuse as main transcript	n.270-434G>A		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes

AF:

0.000381

AC:

AN:

147128

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000733

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000622

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000756

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00117

AC:

1047

AN:

896950

Hom.:

Cov.:

AF XY:

0.00110

AC XY:

465

AN XY:

421454

show subpopulations

Gnomad4 AFR exome

AF:

0.000117

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00122

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00124

Gnomad4 OTH exome

AF:

0.000872

GnomAD4 genome

AF:

0.000380

AC:

AN:

147236

Hom.:

Cov.:

AF XY:

0.000418

AC XY:

AN XY:

71704

show subpopulations

Gnomad4 AFR

AF:

0.0000731

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000622

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000756

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000794

Hom.:

Bravo

AF:

0.000412

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 submitter

clinical testing

Ambry Genetics

Sep 07, 2022

The c.164C>T (p.A55V) alteration is located in exon 1 (coding exon 1) of the GRIN3B gene. This alteration results from a C to T substitution at nucleotide position 164, causing the alanine (A) at amino acid position 55 to be replaced by a valine (V). 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

Benign

0.12

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.61

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.029

Eigen

Benign

-0.88

Eigen_PC

Benign

-0.91

FATHMM_MKL

Benign

0.057

LIST_S2

Benign

0.42

M_CAP

Benign

0.025

MetaRNN

Benign

0.083

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.8

MutationTaster

Benign

1.0

PrimateAI

Pathogenic

0.87

PROVEAN

Benign

-0.22

REVEL

Benign

0.022

Sift

Benign

0.19

Sift4G

Benign

0.18

Polyphen

0.11

Vest4

0.27

MVP

0.42

MPC

0.13

ClinPred

0.17

GERP RS

1.6

Varity_R

0.030

gMVP

0.56

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