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rs8179186

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000814.6(GABRB3):c.240+13C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.152 in 1,603,122 control chromosomes in the GnomAD database, including 22,136 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.14 ( 2039 hom., cov: 34)
Exomes 𝑓: 0.15 ( 20097 hom. )

Consequence

GABRB3
NM_000814.6 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 0.680
Variant links:
Genes affected
GABRB3 (HGNC:4083): (gamma-aminobutyric acid type A receptor subunit beta3) This gene encodes a member of the ligand-gated ionic channel family. The encoded protein is one the subunits of a multi-subunit chloride channel that serves as the receptor for gamma-aminobutyric acid, a major inhibitory neurotransmitter of the mammalian nervous system. This gene is located on the long arm of chromosome 15 in a cluster with two other genes encoding related subunits of the family. This gene may be associated with the pathogenesis of several disorders including Angelman syndrome, Prader-Willi syndrome, nonsyndromic orofacial clefts, epilepsy and autism. Alternatively spliced transcript variants encoding distinct isoforms have been described. [provided by RefSeq, Jul 2013]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.78).
BP6
Variant 15-26772389-G-A is Benign according to our data. Variant chr15-26772389-G-A is described in ClinVar as [Benign]. Clinvar id is 256819.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.302 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GABRB3NM_000814.6 linkuse as main transcriptc.240+13C>T intron_variant ENST00000311550.10
GABRB3NM_001278631.2 linkuse as main transcriptc.-112+13C>T intron_variant
GABRB3NM_021912.5 linkuse as main transcriptc.240+13C>T intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GABRB3ENST00000311550.10 linkuse as main transcriptc.240+13C>T intron_variant 1 NM_000814.6 P1P28472-1

Frequencies

GnomAD3 genomes
AF:
0.136
AC:
20639
AN:
152090
Hom.:
2033
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0350
Gnomad AMI
AF:
0.0603
Gnomad AMR
AF:
0.288
Gnomad ASJ
AF:
0.100
Gnomad EAS
AF:
0.316
Gnomad SAS
AF:
0.225
Gnomad FIN
AF:
0.176
Gnomad MID
AF:
0.0637
Gnomad NFE
AF:
0.140
Gnomad OTH
AF:
0.137
GnomAD3 exomes
AF:
0.191
AC:
44799
AN:
234610
Hom.:
5580
AF XY:
0.185
AC XY:
23556
AN XY:
127636
show subpopulations
Gnomad AFR exome
AF:
0.0300
Gnomad AMR exome
AF:
0.388
Gnomad ASJ exome
AF:
0.0998
Gnomad EAS exome
AF:
0.314
Gnomad SAS exome
AF:
0.208
Gnomad FIN exome
AF:
0.173
Gnomad NFE exome
AF:
0.139
Gnomad OTH exome
AF:
0.177
GnomAD4 exome
AF:
0.154
AC:
223505
AN:
1450924
Hom.:
20097
Cov.:
31
AF XY:
0.155
AC XY:
111748
AN XY:
721278
show subpopulations
Gnomad4 AFR exome
AF:
0.0262
Gnomad4 AMR exome
AF:
0.377
Gnomad4 ASJ exome
AF:
0.0982
Gnomad4 EAS exome
AF:
0.336
Gnomad4 SAS exome
AF:
0.204
Gnomad4 FIN exome
AF:
0.172
Gnomad4 NFE exome
AF:
0.140
Gnomad4 OTH exome
AF:
0.148
GnomAD4 genome
AF:
0.136
AC:
20655
AN:
152198
Hom.:
2039
Cov.:
34
AF XY:
0.144
AC XY:
10690
AN XY:
74416
show subpopulations
Gnomad4 AFR
AF:
0.0349
Gnomad4 AMR
AF:
0.289
Gnomad4 ASJ
AF:
0.100
Gnomad4 EAS
AF:
0.315
Gnomad4 SAS
AF:
0.225
Gnomad4 FIN
AF:
0.176
Gnomad4 NFE
AF:
0.140
Gnomad4 OTH
AF:
0.136
Alfa
AF:
0.0830
Hom.:
149
Bravo
AF:
0.139
Asia WGS
AF:
0.256
AC:
889
AN:
3468

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Benign, criteria provided, single submitterclinical testingGeneDxJan 08, 2016This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Epilepsy, childhood absence, susceptibility to, 1;C2677087:Epilepsy, childhood absence, susceptibility to, 5 Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeFeb 01, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.78
Cadd
Benign
16
Dann
Benign
0.92

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: rs8179186; hg19: chr15-27017536; COSMIC: COSV54689489; COSMIC: COSV54689489; API