rs17671178

chr16-10093350-A-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001134407.3(GRIN2A):c.414+86648T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0838 in 152,258 control chromosomes in the GnomAD database, including 698 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.084 (698 hom., cov: 32)
• Consequence: GRIN2A NM_001134407.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.00300

Genes affected

GRIN2A (HGNC:4585): (glutamate ionotropic receptor NMDA type subunit 2A) This gene encodes a member of the glutamate-gated ion channel protein family. The encoded protein is an N-methyl-D-aspartate (NMDA) receptor subunit. NMDA receptors are both ligand-gated and voltage-dependent, and are involved in long-term potentiation, an activity-dependent increase in the efficiency of synaptic transmission thought to underlie certain kinds of memory and learning. These receptors are permeable to calcium ions, and activation results in a calcium influx into post-synaptic cells, which results in the activation of several signaling cascades. Disruption of this gene is associated with focal epilepsy and speech disorder with or without cognitive disability. Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2014]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.92).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.125 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GRIN2A	NM_001134407.3	c.414+86648T>C		intron_variant		ENST00000330684.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GRIN2A	ENST00000330684.4	c.414+86648T>C		intron_variant		1	NM_001134407.3	P1

Frequencies

GnomAD3 genomes AF: 0.0839 AC: 12759 AN: 152140 Hom.: 700 Cov.: 32

Gnomad AFR AF: 0.0297

Gnomad AMI AF: 0.0208

Gnomad AMR AF: 0.0583

Gnomad ASJ AF: 0.0349

Gnomad EAS AF: 0.00250

Gnomad SAS AF: 0.0635

Gnomad FIN AF: 0.127

Gnomad MID AF: 0.0316

Gnomad NFE AF: 0.128

Gnomad OTH AF: 0.0707

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0838 AC: 12756 AN: 152258 Hom.: 698 Cov.: 32 AF XY: 0.0807 AC XY: 6009 AN XY: 74436

Gnomad4 AFR AF: 0.0296

Gnomad4 AMR AF: 0.0583

Gnomad4 ASJ AF: 0.0349

Gnomad4 EAS AF: 0.00250

Gnomad4 SAS AF: 0.0640

Gnomad4 FIN AF: 0.127

Gnomad4 NFE AF: 0.128

Gnomad4 OTH AF: 0.0699

Alfa AF: 0.0983 Hom.: 121

Bravo AF: 0.0747

Asia WGS AF: 0.0240 AC: 84 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.92
Cadd	Benign	1.1
Dann	Benign	0.52

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: rs17671178; hg19: chr16-10187207;