15-27527963-C-T

Variant summary

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

The NM_033223.5(GABRG3):c.1093C>T(p.Pro365Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000209 in 1,597,194 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00021 ( 4 hom. )

Consequence

GABRG3
NM_033223.5 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 3.21

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]

GABRG3 links:

(HGNC:):

links:

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=0.008850068).

BP6

Variant 15-27527963-C-T is Benign according to our data. Variant chr15-27527963-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3046640.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GABRG3	NM_033223.5 linkuse as main transcript	c.1093C>T	p.Pro365Ser	missense_variant	9/10	ENST00000615808.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GABRG3	ENST00000615808.5 linkuse as main transcript	c.1093C>T	p.Pro365Ser	missense_variant	9/10	1	NM_033223.5	P1	Q99928-1
	ENST00000556642.1 linkuse as main transcript	n.85+13150G>A		intron_variant, non_coding_transcript_variant		2
GABRG3	ENST00000333743.10 linkuse as main transcript	c.556C>T	p.Pro186Ser	missense_variant	6/7	5
GABRG3	ENST00000451330.2 linkuse as main transcript	c.382C>T	p.Pro128Ser	missense_variant	3/4	3

Frequencies

GnomAD3 genomes

AF:

0.000164

AC:

AN:

152100

Hom.:

Cov.:

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:

0.00308

Gnomad SAS

AF:

0.00187

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000344

AC:

AN:

224014

Hom.:

AF XY:

0.000357

AC XY:

AN XY:

120416

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00417

Gnomad SAS exome

AF:

0.000294

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000214

AC:

309

AN:

1444976

Hom.:

Cov.:

AF XY:

0.000248

AC XY:

178

AN XY:

716858

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00650

Gnomad4 SAS exome

AF:

0.000457

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.000251

GnomAD4 genome

AF:

0.000164

AC:

AN:

152218

Hom.:

Cov.:

AF XY:

0.000202

AC XY:

AN XY:

74420

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00309

Gnomad4 SAS

AF:

0.00187

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.000136

ExAC

AF:

0.000307

AC:

Asia WGS

AF:

0.000866

AC:

AN:

3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

GABRG3-related disorder

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Mar 16, 2022

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.085

BayesDel_addAF

Benign

-0.42

BayesDel_noAF

Benign

-0.37

Cadd

Benign

Dann

Uncertain

0.98

DEOGEN2

Benign

0.17

T;.

Eigen

Benign

-0.55

Eigen_PC

Benign

-0.33

FATHMM_MKL

Uncertain

0.86

LIST_S2

Benign

0.65

T;T

M_CAP

Benign

0.064

MetaRNN

Benign

0.0089

T;T

MetaSVM

Benign

-0.75

MutationAssessor

Benign

1.0

L;.

MutationTaster

Benign

0.99

PrimateAI

Benign

0.34

Sift4G

Benign

0.27

T;T

Polyphen

0.021

B;.

Vest4

0.23

MVP

0.54

MPC

0.56

ClinPred

0.13

GERP RS

3.9

Varity_R

0.048

gMVP

0.36

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over