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19-1003350-G-A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_138690.3(GRIN3B):c.647G>A(p.Arg216Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000393 in 1,578,272 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000036 ( 0 hom. )

Consequence

GRIN3B
NM_138690.3 missense

Scores

1
18

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.523
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.012265772).
BP6
Variant 19-1003350-G-A is Benign according to our data. Variant chr19-1003350-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 2314305.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GRIN3BNM_138690.3 linkuse as main transcriptc.647G>A p.Arg216Gln missense_variant 2/9 ENST00000234389.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GRIN3BENST00000234389.3 linkuse as main transcriptc.647G>A p.Arg216Gln missense_variant 2/91 NM_138690.3 P1

Frequencies

GnomAD3 genomes
AF:
0.0000591
AC:
9
AN:
152246
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000882
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000612
AC:
11
AN:
179840
Hom.:
0
AF XY:
0.0000302
AC XY:
3
AN XY:
99298
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000210
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000399
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000390
Gnomad OTH exome
AF:
0.000217
GnomAD4 exome
AF:
0.0000365
AC:
52
AN:
1425908
Hom.:
0
Cov.:
33
AF XY:
0.0000382
AC XY:
27
AN XY:
706976
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000175
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000261
Gnomad4 SAS exome
AF:
0.0000244
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000355
Gnomad4 OTH exome
AF:
0.0000508
GnomAD4 genome
AF:
0.0000656
AC:
10
AN:
152364
Hom.:
0
Cov.:
33
AF XY:
0.0000671
AC XY:
5
AN XY:
74514
show subpopulations
Gnomad4 AFR
AF:
0.0000481
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000882
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000567
ExAC
AF:
0.0000694
AC:
8
Asia WGS
AF:
0.000289
AC:
1
AN:
3476

ClinVar

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

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsAug 08, 2022This alteration is classified as likely 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
AlphaMissense
Benign
0.084
BayesDel_addAF
Benign
-0.63
T
BayesDel_noAF
Benign
-0.85
Cadd
Benign
3.7
Dann
Benign
0.89
DEOGEN2
Benign
0.022
T
Eigen
Benign
-1.7
Eigen_PC
Benign
-1.8
FATHMM_MKL
Benign
0.0093
N
LIST_S2
Benign
0.57
T
M_CAP
Benign
0.0051
T
MetaRNN
Benign
0.012
T
MetaSVM
Benign
-0.92
T
MutationAssessor
Benign
0.20
N
MutationTaster
Benign
1.0
N
PrimateAI
Uncertain
0.71
T
PROVEAN
Benign
0.86
N
REVEL
Benign
0.031
Sift
Benign
1.0
T
Sift4G
Benign
0.72
T
Polyphen
0.0030
B
Vest4
0.022
MutPred
0.46
Loss of methylation at R218 (P = 0.0367);
MVP
0.16
MPC
0.13
ClinPred
0.023
T
GERP RS
-4.7
Varity_R
0.016
gMVP
0.16

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: rs199819972; hg19: chr19-1003349; API