9-137163238-G-C

Position:

• chr9-137163238-G-C

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_Strong BP6_Very_Strong BP7 BA1

The NM_007327.4(GRIN1):​c.2241G>C​(p.Val747=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00315 in 1,613,744 control chromosomes in the GnomAD database, including 103 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.015 (51 hom., cov: 33)
  • Exomes 𝑓: 0.0019 (52 hom.)
• Consequence: GRIN1 NM_007327.4 synonymous
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:6
• Conservation: PhyloP100: 1.13

Genes affected

GRIN1 (HGNC:4584): (glutamate ionotropic receptor NMDA type subunit 1) The protein encoded by this gene is a critical subunit of N-methyl-D-aspartate receptors, members of the glutamate receptor channel superfamily which are heteromeric protein complexes with multiple subunits arranged to form a ligand-gated ion channel. These subunits play a key role in the plasticity of synapses, which is believed to underlie memory and learning. Cell-specific factors are thought to control expression of different isoforms, possibly contributing to the functional diversity of the subunits. Alternatively spliced transcript variants have been described. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -21 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.58).
• BP6: Variant 9-137163238-G-C is Benign according to our data. Variant chr9-137163238-G-C is described in ClinVar as [Benign]. Clinvar id is 129180.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=1.13 with no splicing effect.
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0504 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GRIN1	NM_007327.4	c.2241G>C	p.Val747=	synonymous_variant	16/20	ENST00000371561.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GRIN1	ENST00000371561.8	c.2241G>C	p.Val747=	synonymous_variant	16/20	1	NM_007327.4

Frequencies

GnomAD3 genomes AF: 0.0151 AC: 2301 AN: 152210 Hom.: 51 Cov.: 33

Gnomad AFR AF: 0.0523

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00491

Gnomad ASJ AF: 0.00259

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00316

Gnomad NFE AF: 0.000397

Gnomad OTH AF: 0.0105

GnomAD3 exomes AF: 0.00438 AC: 1097 AN: 250614 Hom.: 29 AF XY: 0.00331 AC XY: 450 AN XY: 135824

Gnomad AFR exome AF: 0.0543

Gnomad AMR exome AF: 0.00350

Gnomad ASJ exome AF: 0.00279

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000980

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000486

Gnomad OTH exome AF: 0.00180

GnomAD4 exome AF: 0.00190 AC: 2776 AN: 1461416 Hom.: 52 Cov.: 34 AF XY: 0.00173 AC XY: 1256 AN XY: 727028

Gnomad4 AFR exome AF: 0.0558

Gnomad4 AMR exome AF: 0.00416

Gnomad4 ASJ exome AF: 0.00375

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.000104

Gnomad4 FIN exome AF: 0.0000188

Gnomad4 NFE exome AF: 0.000295

Gnomad4 OTH exome AF: 0.00426

GnomAD4 genome AF: 0.0151 AC: 2306 AN: 152328 Hom.: 51 Cov.: 33 AF XY: 0.0146 AC XY: 1088 AN XY: 74490

Gnomad4 AFR AF: 0.0523

Gnomad4 AMR AF: 0.00490

Gnomad4 ASJ AF: 0.00259

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000397

Gnomad4 OTH AF: 0.0104

Alfa AF: 0.00535 Hom.: 2

Bravo AF: 0.0176

Asia WGS AF: 0.00346 AC: 12 AN: 3478

EpiCase AF: 0.000545

EpiControl AF: 0.000593

ClinVar

Significance: Benign

Submissions summary: Benign:6

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Benign:3

Likely benign, no assertion criteria provided	clinical testing	Genetic Services Laboratory, University of Chicago	-	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. -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Jan 20, 2016	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. -
Benign, criteria provided, single submitter	clinical testing	Athena Diagnostics	Jun 27, 2017	- -

Inborn genetic diseases Benign:1

Benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 02, 2016

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. -

not provided Benign:1

Benign, criteria provided, single submitter

not provided

Breakthrough Genomics, Breakthrough Genomics

-

- -

Intellectual disability, autosomal dominant 8 Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Feb 01, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.58
CADD	Benign	9.9
DANN	Benign	0.79

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

Other links and lift over

dbSNP: rs116354349; hg19: chr9-140057690;