chrX-123202596-T-C

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBA1

The NM_007325.5(GRIA3):​c.268+16606T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.368 in 1,151,262 control chromosomes in the GnomAD database, including 54,013 homozygotes. There are 134,888 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 0.38 ( 5848 hom., 12330 hem., cov: 23)
Exomes 𝑓: 0.37 ( 48165 hom. 122558 hem. )

Consequence

GRIA3
NM_007325.5 intron

Scores

2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.08
Variant links:
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.79).
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.458 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GRIA3NM_000828.5 linkc.268+16606T>C intron_variant ENST00000622768.5 NP_000819.4 P42263-1Q17R51
GRIA3NM_007325.5 linkc.268+16606T>C intron_variant ENST00000620443.2 NP_015564.5 P42263-2Q17R51
GRIA3NM_001256743.2 linkc.269-40T>C intron_variant NP_001243672.1 Q5XKG2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GRIA3ENST00000620443.2 linkc.268+16606T>C intron_variant 1 NM_007325.5 ENSP00000478489.1 P42263-2
GRIA3ENST00000622768.5 linkc.268+16606T>C intron_variant 5 NM_000828.5 ENSP00000481554.1 P42263-1

Frequencies

GnomAD3 genomes
AF:
0.382
AC:
42346
AN:
110911
Hom.:
5848
Cov.:
23
AF XY:
0.371
AC XY:
12297
AN XY:
33163
show subpopulations
Gnomad AFR
AF:
0.406
Gnomad AMI
AF:
0.546
Gnomad AMR
AF:
0.452
Gnomad ASJ
AF:
0.411
Gnomad EAS
AF:
0.477
Gnomad SAS
AF:
0.391
Gnomad FIN
AF:
0.272
Gnomad MID
AF:
0.466
Gnomad NFE
AF:
0.356
Gnomad OTH
AF:
0.388
GnomAD3 exomes
AF:
0.405
AC:
41117
AN:
101601
Hom.:
5941
AF XY:
0.394
AC XY:
13150
AN XY:
33397
show subpopulations
Gnomad AFR exome
AF:
0.417
Gnomad AMR exome
AF:
0.535
Gnomad ASJ exome
AF:
0.401
Gnomad EAS exome
AF:
0.486
Gnomad SAS exome
AF:
0.404
Gnomad FIN exome
AF:
0.290
Gnomad NFE exome
AF:
0.360
Gnomad OTH exome
AF:
0.401
GnomAD4 exome
AF:
0.366
AC:
381207
AN:
1040301
Hom.:
48165
Cov.:
25
AF XY:
0.367
AC XY:
122558
AN XY:
334079
show subpopulations
Gnomad4 AFR exome
AF:
0.410
Gnomad4 AMR exome
AF:
0.523
Gnomad4 ASJ exome
AF:
0.409
Gnomad4 EAS exome
AF:
0.485
Gnomad4 SAS exome
AF:
0.405
Gnomad4 FIN exome
AF:
0.292
Gnomad4 NFE exome
AF:
0.355
Gnomad4 OTH exome
AF:
0.378
GnomAD4 genome
AF:
0.382
AC:
42366
AN:
110961
Hom.:
5848
Cov.:
23
AF XY:
0.371
AC XY:
12330
AN XY:
33223
show subpopulations
Gnomad4 AFR
AF:
0.406
Gnomad4 AMR
AF:
0.452
Gnomad4 ASJ
AF:
0.411
Gnomad4 EAS
AF:
0.477
Gnomad4 SAS
AF:
0.388
Gnomad4 FIN
AF:
0.272
Gnomad4 NFE
AF:
0.356
Gnomad4 OTH
AF:
0.392
Alfa
AF:
0.309
Hom.:
3944
Bravo
AF:
0.404

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.79
CADD
Benign
0.27
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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs2285127; hg19: chrX-122336448; COSMIC: COSV52085355; API