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GeneBe

5-162068016-T-C

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 1P and 6B. PP2BP4_StrongBP6_Moderate

The NM_198904.4(GABRG2):c.17T>C(p.Ile6Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000869 in 1,611,700 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

GABRG2
NM_198904.4 missense

Scores

14

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.305
Variant links:
Genes affected
GABRG2 (HGNC:4087): (gamma-aminobutyric acid type A receptor subunit gamma2) This gene encodes a gamma-aminobutyric acid (GABA) receptor. GABA is the major inhibitory neurotransmitter in the mammlian brain, where it acts at GABA-A receptors, which are ligand-gated chloride channels. GABA-A receptors are pentameric, consisting of proteins from several subunit classes: alpha, beta, gamma, delta and rho. Mutations in this gene have been associated with epilepsy and febrile seizures. Multiple transcript variants encoding different isoforms have been identified for this gene. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PP2
Missense variant where missense usually causes diseases, GABRG2
BP4
Computational evidence support a benign effect (MetaRNN=0.052210987).
BP6
Variant 5-162068016-T-C is Benign according to our data. Variant chr5-162068016-T-C is described in ClinVar as [Benign]. Clinvar id is 582700.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GABRG2NM_198904.4 linkuse as main transcriptc.17T>C p.Ile6Thr missense_variant 1/10 ENST00000639213.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GABRG2ENST00000639213.2 linkuse as main transcriptc.17T>C p.Ile6Thr missense_variant 1/101 NM_198904.4 A1P18507-2

Frequencies

GnomAD3 genomes
AF:
0.00000662
AC:
1
AN:
151114
Hom.:
0
Cov.:
31
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
251042
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135646
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000882
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000890
AC:
13
AN:
1460586
Hom.:
0
Cov.:
32
AF XY:
0.0000124
AC XY:
9
AN XY:
726670
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000990
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000662
AC:
1
AN:
151114
Hom.:
0
Cov.:
31
AF XY:
0.0000136
AC XY:
1
AN XY:
73724
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:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.0000165
AC:
2

ClinVar

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

Submissions by phenotype

Epilepsy, childhood absence 2;C1969810:Febrile seizures, familial, 8 Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeAug 04, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.095
BayesDel_addAF
Benign
-0.29
T
BayesDel_noAF
Benign
-0.48
Cadd
Benign
8.3
Dann
Benign
0.69
Eigen
Benign
-0.86
Eigen_PC
Benign
-0.74
FATHMM_MKL
Benign
0.23
N
LIST_S2
Benign
0.61
T;T;T;T;T;T;T
M_CAP
Benign
0.023
T
MetaRNN
Benign
0.052
T;T;T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.0
N;N;.;.;N;.;.
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.35
T
Polyphen
0.0
B;B;.;.;.;.;.
Vest4
0.18, 0.14
MutPred
0.25
Loss of stability (P = 0.0086);Loss of stability (P = 0.0086);Loss of stability (P = 0.0086);Loss of stability (P = 0.0086);Loss of stability (P = 0.0086);Loss of stability (P = 0.0086);Loss of stability (P = 0.0086);
MVP
0.17
MPC
0.092
ClinPred
0.017
T
GERP RS
-3.4
Varity_R
0.032
gMVP
0.48

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: rs759392289; hg19: chr5-161495022; API