chr19-1000525-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_138690.3(GRIN3B):ā€‹c.88C>Gā€‹(p.Leu30Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000492 in 1,179,220 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000080 ( 0 hom., cov: 33)
Exomes š‘“: 0.000045 ( 1 hom. )

Consequence

GRIN3B
NM_138690.3 missense

Scores

2
2
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.372
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.22567701).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GRIN3BNM_138690.3 linkuse as main transcriptc.88C>G p.Leu30Val missense_variant 1/9 ENST00000234389.3 NP_619635.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GRIN3BENST00000234389.3 linkuse as main transcriptc.88C>G p.Leu30Val missense_variant 1/91 NM_138690.3 ENSP00000234389 P1
ENST00000588380.1 linkuse as main transcriptn.270-358G>C intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
AF:
0.0000667
AC:
10
AN:
149888
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000486
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000581
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00323
Gnomad NFE
AF:
0.0000595
Gnomad OTH
AF:
0.000484
GnomAD4 exome
AF:
0.0000447
AC:
46
AN:
1029222
Hom.:
1
Cov.:
32
AF XY:
0.0000536
AC XY:
26
AN XY:
484942
show subpopulations
Gnomad4 AFR exome
AF:
0.000903
Gnomad4 AMR exome
AF:
0.000449
Gnomad4 ASJ exome
AF:
0.000166
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000902
Gnomad4 OTH exome
AF:
0.000251
GnomAD4 genome
AF:
0.0000800
AC:
12
AN:
149998
Hom.:
0
Cov.:
33
AF XY:
0.0000546
AC XY:
4
AN XY:
73254
show subpopulations
Gnomad4 AFR
AF:
0.0000727
Gnomad4 AMR
AF:
0.0000663
Gnomad4 ASJ
AF:
0.000581
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000595
Gnomad4 OTH
AF:
0.000479
Bravo
AF:
0.0000340

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 submitterclinical testingAmbry GeneticsSep 27, 2021The c.88C>G (p.L30V) alteration is located in exon 1 (coding exon 1) of the GRIN3B gene. This alteration results from a C to G substitution at nucleotide position 88, causing the leucine (L) at amino acid position 30 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
0.098
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.61
CADD
Benign
19
DANN
Uncertain
0.98
DEOGEN2
Benign
0.031
T
Eigen
Benign
-0.29
Eigen_PC
Benign
-0.40
FATHMM_MKL
Benign
0.066
N
LIST_S2
Benign
0.72
T
M_CAP
Pathogenic
0.45
D
MetaRNN
Benign
0.23
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.6
M
MutationTaster
Benign
1.0
N
PrimateAI
Pathogenic
0.91
D
PROVEAN
Benign
-0.62
N
REVEL
Benign
0.060
Sift
Benign
0.15
T
Sift4G
Benign
0.076
T
Polyphen
0.94
P
Vest4
0.068
MutPred
0.37
Loss of helix (P = 0.079);
MVP
0.52
MPC
0.20
ClinPred
0.58
D
GERP RS
2.6
Varity_R
0.10
gMVP
0.54

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: rs1177674118; hg19: chr19-1000524; API