rs5911569

chrX-123271036-G-A

Variant summary

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

The NM_000828.5(GRIA3):c.508+17494G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.201 in 111,012 control chromosomes in the GnomAD database, including 1,655 homozygotes. There are 6,414 hemizygotes in GnomAD. 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 0.20 (1655 hom., 6414 hem., cov: 23)
• Consequence: GRIA3 NM_000828.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.52

Genes affected

GRIA3 (HGNC:4573): (glutamate ionotropic receptor AMPA type subunit 3) Glutamate receptors are the predominant excitatory neurotransmitter receptors in the mammalian brain and are activated in a variety of normal neurophysiologic processes. These receptors are heteromeric protein complexes composed of multiple subunits, arranged to form ligand-gated ion channels. The classification of glutamate receptors is based on their activation by different pharmacologic agonists. The subunit encoded by this gene belongs to a family of AMPA (alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionate)-sensitive glutamate receptors, and is subject to RNA editing (AGA->GGA; R->G). Alternative splicing at this locus results in different isoforms, which may vary in their signal transduction properties. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.6).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.223 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GRIA3	NM_000828.5	c.508+17494G>A		intron_variant		ENST00000622768.5
GRIA3	NM_007325.5	c.508+17494G>A		intron_variant		ENST00000620443.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GRIA3	ENST00000620443.2	c.508+17494G>A		intron_variant		1	NM_007325.5	P4
GRIA3	ENST00000622768.5	c.508+17494G>A		intron_variant		5	NM_000828.5	A1
GRIA3	ENST00000620581.4	c.508+17494G>A		intron_variant, NMD_transcript_variant		1

Frequencies

GnomAD3 genomes AF: 0.201 AC: 22319 AN: 110957 Hom.: 1654 Cov.: 23 AF XY: 0.193 AC XY: 6408 AN XY: 33221

Gnomad AFR AF: 0.186

Gnomad AMI AF: 0.162

Gnomad AMR AF: 0.176

Gnomad ASJ AF: 0.178

Gnomad EAS AF: 0.0598

Gnomad SAS AF: 0.106

Gnomad FIN AF: 0.237

Gnomad MID AF: 0.165

Gnomad NFE AF: 0.227

Gnomad OTH AF: 0.201

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

GnomAD4 genome AF: 0.201 AC: 22331 AN: 111012 Hom.: 1655 Cov.: 23 AF XY: 0.193 AC XY: 6414 AN XY: 33286

Gnomad4 AFR AF: 0.186

Gnomad4 AMR AF: 0.177

Gnomad4 ASJ AF: 0.178

Gnomad4 EAS AF: 0.0597

Gnomad4 SAS AF: 0.107

Gnomad4 FIN AF: 0.237

Gnomad4 NFE AF: 0.226

Gnomad4 OTH AF: 0.199

Alfa AF: 0.212 Hom.: 3779

Bravo AF: 0.195

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.60
Cadd	Benign	17
Dann	Benign	0.62

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

Other links and lift over

dbSNP: rs5911569; hg19: chrX-122404887;