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X-152189865-C-T

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_ModerateBP6_ModerateBP7BS2

The NM_000808.4(GABRA3):c.1008G>A(p.Thr336=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000331 in 1,207,093 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 17 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000036 ( 0 hom., 1 hem., cov: 22)
Exomes 𝑓: 0.000033 ( 0 hom. 16 hem. )

Consequence

GABRA3
NM_000808.4 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.575
Variant links:
Genes affected
GABRA3 (HGNC:4077): (gamma-aminobutyric acid type A receptor subunit alpha3) GABA is the major inhibitory neurotransmitter in the mammalian brain where it acts at GABA-A receptors, which are ligand-gated chloride channels. Chloride conductance of these channels can be modulated by agents such as benzodiazepines that bind to the GABA-A receptor. At least 16 distinct subunits of GABA-A receptors have been identified. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.27).
BP6
Variant X-152189865-C-T is Benign according to our data. Variant chrX-152189865-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 726234.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=0.575 with no splicing effect.
BS2
High Hemizygotes in GnomAdExome at 2 gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GABRA3NM_000808.4 linkuse as main transcriptc.1008G>A p.Thr336= synonymous_variant 9/10 ENST00000370314.9
GABRA3XM_006724811.4 linkuse as main transcriptc.931+7768G>A intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GABRA3ENST00000370314.9 linkuse as main transcriptc.1008G>A p.Thr336= synonymous_variant 9/101 NM_000808.4 P1
GABRA3ENST00000535043.1 linkuse as main transcriptc.1008G>A p.Thr336= synonymous_variant 9/101 P1
GABRA3ENST00000497894.1 linkuse as main transcriptn.79G>A non_coding_transcript_exon_variant 1/22

Frequencies

GnomAD3 genomes
AF:
0.0000362
AC:
4
AN:
110538
Hom.:
0
Cov.:
22
AF XY:
0.0000305
AC XY:
1
AN XY:
32780
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000966
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000567
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000220
AC:
4
AN:
181681
Hom.:
0
AF XY:
0.0000302
AC XY:
2
AN XY:
66255
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000492
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000328
AC:
36
AN:
1096501
Hom.:
0
Cov.:
29
AF XY:
0.0000442
AC XY:
16
AN XY:
361925
show subpopulations
Gnomad4 AFR exome
AF:
0.0000379
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000381
Gnomad4 OTH exome
AF:
0.0000652
GnomAD4 genome
AF:
0.0000362
AC:
4
AN:
110592
Hom.:
0
Cov.:
22
AF XY:
0.0000304
AC XY:
1
AN XY:
32844
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000965
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000567
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000453
EpiCase
AF:
0.0000552
EpiControl
AF:
0.0000599

ClinVar

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

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeMar 27, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.27
Cadd
Benign
10
Dann
Benign
0.75

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: rs200711028; hg19: chrX-151358337; COSMIC: COSV100942376; COSMIC: COSV100942376; API