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GeneBe

15-26977087-G-A

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_StrongBP6_Moderate

The NM_033223.5(GABRG3):c.139G>A(p.Val47Met) variant causes a missense change. The variant allele was found at a frequency of 0.00195 in 1,613,950 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0017 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0020 ( 6 hom. )

Consequence

GABRG3
NM_033223.5 missense

Scores

8
8

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 6.85
Variant links:
Genes affected
GABRG3 (HGNC:4088): (gamma-aminobutyric acid type A receptor subunit gamma3) This gene encodes a gamma-aminobutyric acid (GABA) receptor. 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. GABA-A receptors are pentameric, consisting of proteins from several subunit classes: alpha, beta, gamma, delta and rho. The protein encoded by this gene is a gamma subunit, which contains the benzodiazepine binding site. Two transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Aug 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.016829938).
BP6
Variant 15-26977087-G-A is Benign according to our data. Variant chr15-26977087-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 720823.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GABRG3NM_033223.5 linkuse as main transcriptc.139G>A p.Val47Met missense_variant 2/10 ENST00000615808.5
GABRG3NM_001270873.2 linkuse as main transcriptc.139G>A p.Val47Met missense_variant 2/6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GABRG3ENST00000615808.5 linkuse as main transcriptc.139G>A p.Val47Met missense_variant 2/101 NM_033223.5 P1Q99928-1
GABRG3ENST00000555083.5 linkuse as main transcriptc.139G>A p.Val47Met missense_variant 2/62 Q99928-2
GABRG3ENST00000553440.1 linkuse as main transcriptn.231G>A non_coding_transcript_exon_variant 2/33

Frequencies

GnomAD3 genomes
AF:
0.00172
AC:
261
AN:
152182
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000362
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000851
Gnomad ASJ
AF:
0.00231
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000415
Gnomad FIN
AF:
0.00349
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.00263
Gnomad OTH
AF:
0.00287
GnomAD3 exomes
AF:
0.00181
AC:
452
AN:
249254
Hom.:
1
AF XY:
0.00197
AC XY:
266
AN XY:
135224
show subpopulations
Gnomad AFR exome
AF:
0.000452
Gnomad AMR exome
AF:
0.00177
Gnomad ASJ exome
AF:
0.00358
Gnomad EAS exome
AF:
0.0000556
Gnomad SAS exome
AF:
0.000490
Gnomad FIN exome
AF:
0.00316
Gnomad NFE exome
AF:
0.00223
Gnomad OTH exome
AF:
0.00198
GnomAD4 exome
AF:
0.00198
AC:
2888
AN:
1461650
Hom.:
6
Cov.:
32
AF XY:
0.00196
AC XY:
1425
AN XY:
727102
show subpopulations
Gnomad4 AFR exome
AF:
0.000358
Gnomad4 AMR exome
AF:
0.00159
Gnomad4 ASJ exome
AF:
0.00329
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.000568
Gnomad4 FIN exome
AF:
0.00363
Gnomad4 NFE exome
AF:
0.00212
Gnomad4 OTH exome
AF:
0.00186
GnomAD4 genome
AF:
0.00171
AC:
261
AN:
152300
Hom.:
0
Cov.:
32
AF XY:
0.00187
AC XY:
139
AN XY:
74474
show subpopulations
Gnomad4 AFR
AF:
0.000361
Gnomad4 AMR
AF:
0.000850
Gnomad4 ASJ
AF:
0.00231
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000415
Gnomad4 FIN
AF:
0.00349
Gnomad4 NFE
AF:
0.00263
Gnomad4 OTH
AF:
0.00284
Alfa
AF:
0.00237
Hom.:
2
Bravo
AF:
0.00146
TwinsUK
AF:
0.00108
AC:
4
ALSPAC
AF:
0.00208
AC:
8
ESP6500AA
AF:
0.000271
AC:
1
ESP6500EA
AF:
0.00245
AC:
20
ExAC
AF:
0.00179
AC:
216
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.00229
EpiControl
AF:
0.00213

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 testingInvitaeJun 23, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.34
BayesDel_addAF
Benign
-0.36
T
BayesDel_noAF
Benign
-0.29
Cadd
Pathogenic
27
Dann
Uncertain
1.0
DEOGEN2
Benign
0.022
T;.
Eigen
Uncertain
0.63
Eigen_PC
Uncertain
0.64
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.96
D;D
M_CAP
Benign
0.050
D
MetaRNN
Benign
0.017
T;T
MetaSVM
Uncertain
0.19
D
MutationAssessor
Benign
2.0
M;M
MutationTaster
Benign
0.98
D;D
PrimateAI
Uncertain
0.73
T
Sift4G
Uncertain
0.016
D;D
Polyphen
0.99
D;.
Vest4
0.45
MVP
0.56
ClinPred
0.016
T
GERP RS
5.3
Varity_R
0.12
gMVP
0.53

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: rs28399526; hg19: chr15-27222234; API