chrX-123184622-A-T

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 0P and 15B. BP4_StrongBP6_ModerateBP7BS1BS2

The NM_000828.5(GRIA3):​c.87A>T​(p.Gly29=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000393 in 1,194,750 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 25 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0000091 ( 0 hom., 1 hem., cov: 20)
Exomes 𝑓: 0.000042 ( 0 hom. 24 hem. )

Consequence

GRIA3
NM_000828.5 synonymous

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.02
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 -15 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.63).
BP6
Variant X-123184622-A-T is Benign according to our data. Variant chrX-123184622-A-T is described in ClinVar as [Benign]. Clinvar id is 1640921.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=1.02 with no splicing effect.
BS1
Variant frequency is greater than expected in population sas. gnomad4_exome allele frequency = 0.0000424 (46/1085294) while in subpopulation SAS AF= 0.000761 (41/53842). AF 95% confidence interval is 0.000576. There are 0 homozygotes in gnomad4_exome. There are 24 alleles in male gnomad4_exome subpopulation. Median coverage is 29. This position pass quality control queck.
BS2
High Hemizygotes in GnomAdExome4 at 24 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GRIA3NM_000828.5 linkuse as main transcriptc.87A>T p.Gly29= synonymous_variant 1/16 ENST00000622768.5
GRIA3NM_007325.5 linkuse as main transcriptc.87A>T p.Gly29= synonymous_variant 1/16 ENST00000620443.2
GRIA3NM_001256743.2 linkuse as main transcriptc.87A>T p.Gly29= synonymous_variant 1/4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GRIA3ENST00000620443.2 linkuse as main transcriptc.87A>T p.Gly29= synonymous_variant 1/161 NM_007325.5 P4P42263-2
GRIA3ENST00000622768.5 linkuse as main transcriptc.87A>T p.Gly29= synonymous_variant 1/165 NM_000828.5 A1P42263-1

Frequencies

GnomAD3 genomes
AF:
0.00000914
AC:
1
AN:
109456
Hom.:
0
Cov.:
20
AF XY:
0.0000314
AC XY:
1
AN XY:
31824
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000409
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000125
AC:
23
AN:
183300
Hom.:
0
AF XY:
0.000148
AC XY:
10
AN XY:
67754
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00121
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000424
AC:
46
AN:
1085294
Hom.:
0
Cov.:
29
AF XY:
0.0000683
AC XY:
24
AN XY:
351220
show subpopulations
Gnomad4 AFR exome
AF:
0.0000382
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000332
Gnomad4 SAS exome
AF:
0.000761
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000657
GnomAD4 genome
AF:
0.00000914
AC:
1
AN:
109456
Hom.:
0
Cov.:
20
AF XY:
0.0000314
AC XY:
1
AN XY:
31824
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000409
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000113

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeDec 18, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.63
CADD
Benign
15
DANN
Benign
0.69

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

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

Other links and lift over

dbSNP: rs765395672; hg19: chrX-122318474; API