15-26560954-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP2

The NM_000814.6(GABRB3):ā€‹c.1058G>Cā€‹(p.Arg353Pro) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,688 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

GABRB3
NM_000814.6 missense

Scores

3
5
11

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.50
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 Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), GABRB3. . Gene score misZ 3.3856 (greater than the threshold 3.09). Trascript score misZ 4.4544 (greater than threshold 3.09). GenCC has associacion of gene with childhood absence epilepsy, developmental and epileptic encephalopathy, 43, developmental and epileptic encephalopathy, Lennox-Gastaut syndrome, epilepsy, childhood absence, susceptibility to, 5.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GABRB3NM_000814.6 linkuse as main transcriptc.1058G>C p.Arg353Pro missense_variant 8/9 ENST00000311550.10 NP_000805.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GABRB3ENST00000311550.10 linkuse as main transcriptc.1058G>C p.Arg353Pro missense_variant 8/91 NM_000814.6 ENSP00000308725 P1P28472-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251484
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135916
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:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461688
Hom.:
0
Cov.:
33
AF XY:
0.00000138
AC XY:
1
AN XY:
727142
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.28
BayesDel_addAF
Pathogenic
0.27
D
BayesDel_noAF
Pathogenic
0.24
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Benign
0.27
.;T;.;.;.;.;.;.;.
Eigen
Benign
0.022
Eigen_PC
Benign
0.20
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.95
.;D;D;D;D;.;D;D;.
M_CAP
Benign
0.069
D
MetaRNN
Uncertain
0.65
D;D;D;D;D;D;D;D;D
MetaSVM
Benign
-0.78
T
MutationAssessor
Benign
2.0
.;M;.;.;M;.;.;.;.
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Uncertain
0.61
T
PROVEAN
Benign
-1.2
.;N;.;N;N;.;.;N;N
REVEL
Uncertain
0.48
Sift
Benign
0.12
.;T;.;D;T;.;.;T;T
Sift4G
Benign
0.22
T;T;T;T;T;.;.;T;T
Polyphen
0.0020, 0.19, 0.0070
.;B;.;B;B;.;.;.;.
Vest4
0.47
MutPred
0.58
.;.;.;Loss of MoRF binding (P = 0.0029);.;.;.;.;.;
MVP
0.98
MPC
2.6
ClinPred
0.64
D
GERP RS
5.2
Varity_R
0.46
gMVP
0.82

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: rs200057173; hg19: chr15-26806101; COSMIC: COSV54683637; COSMIC: COSV54683637; API