chr9-101573307-C-T

Variant names:

• chr9-101573307-C-T
• rs777496448
• NM_133445.3:c.3215G>A

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_133445.3(GRIN3A):​c.3215G>A​(p.Arg1072Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000477 in 1,613,860 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000020 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000051 (0 hom.)
• Consequence: GRIN3A NM_133445.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.69
• Publications: 1 publications found

Genes affected

GRIN3A (HGNC:16767): (glutamate ionotropic receptor NMDA type subunit 3A) This gene encodes a subunit of the N-methyl-D-aspartate (NMDA) receptors, which belong to the superfamily of glutamate-regulated ion channels, and function in physiological and pathological processes in the central nervous system. This subunit shows greater than 90% identity to the corresponding subunit in rat. Studies in the knockout mouse deficient in this subunit suggest that this gene may be involved in the development of synaptic elements by modulating NMDA receptor activity. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.066072345).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_133445.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GRIN3A	NM_133445.3	MANE Select	c.3215G>A	p.Arg1072Gln	missense	Exon 9 of 9	NP_597702.2	Q8TCU5

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GRIN3A	ENST00000361820.6	TSL:1 MANE Select	c.3215G>A	p.Arg1072Gln	missense	Exon 9 of 9	ENSP00000355155.3	Q8TCU5

Frequencies

GnomAD3 genomes AF: 0.0000197 AC: 3 AN: 152062 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000579

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000677 AC: 17 AN: 250982 AF XY: 0.0000664

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000289

Gnomad ASJ exome AF: 0.000199

Gnomad EAS exome AF: 0.000218

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000618

Gnomad OTH exome AF: 0.000163

GnomAD4 exome AF: 0.0000506 AC: 74 AN: 1461798 Hom.: 0 Cov.: 31 AF XY: 0.0000454 AC XY: 33 AN XY: 727192

African (AFR) AF: 0.0000299 AC: 1 AN: 33470

American (AMR) AF: 0.0000224 AC: 1 AN: 44716

Ashkenazi Jewish (ASJ) AF: 0.000153 AC: 4 AN: 26130

East Asian (EAS) AF: 0.000176 AC: 7 AN: 39696

South Asian (SAS) AF: 0.0000232 AC: 2 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.0000513 AC: 57 AN: 1111956

Other (OTH) AF: 0.0000331 AC: 2 AN: 60386

GnomAD4 genome AF: 0.0000197 AC: 3 AN: 152062 Hom.: 0 Cov.: 32 AF XY: 0.0000404 AC XY: 3 AN XY: 74266

African (AFR) AF: 0.00 AC: 0 AN: 41380

American (AMR) AF: 0.00 AC: 0 AN: 15262

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.000579 AC: 3 AN: 5180

South Asian (SAS) AF: 0.00 AC: 0 AN: 4826

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10600

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68030

Other (OTH) AF: 0.00 AC: 0 AN: 2088

Alfa AF: 0.0000675 Hom.: 0

Bravo AF: 0.0000227

TwinsUK AF: 0.00 AC: 0

ALSPAC AF: 0.000259 AC: 1

ExAC AF: 0.0000824 AC: 10

Asia WGS AF: 0.000289 AC: 1 AN: 3478

EpiCase AF: 0.00

EpiControl AF: 0.000119

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.076
BayesDel_addAF	Benign	-0.33	T
BayesDel_noAF	Benign	-0.45
CADD	Benign	22
DANN	Uncertain	1.0
DEOGEN2	Benign	0.034	T
Eigen	Uncertain	0.27
Eigen_PC	Uncertain	0.37
FATHMM_MKL	Uncertain	0.88	D
LIST_S2	Benign	0.79	T
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.066	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.3	L
PhyloP100		1.7
PrimateAI	Benign	0.32	T
PROVEAN	Benign	-0.96	N
REVEL	Benign	0.088
Sift	Benign	0.083	T
Sift4G	Benign	0.38	T
Polyphen		0.85	P
Vest4		0.099
MutPred		0.20		Loss of MoRF binding (P = 0.0494)
MVP		0.62
MPC		0.15
ClinPred		0.051	T
GERP RS		5.5
Varity_R		0.12
gMVP		0.32
Mutation Taster		=75/25	polymorphism

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

Other links and lift over

dbSNP: rs777496448; hg19: chr9-104335589;