5-161294110-T-C

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 1P and 8B. PP2BP4_ModerateBP6_ModerateBS2

The NM_001371727.1(GABRB2):ā€‹c.1510A>Gā€‹(p.Ile504Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000806 in 1,613,366 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…).

Frequency

Genomes: š‘“ 0.000020 ( 0 hom., cov: 32)
Exomes š‘“: 0.0000068 ( 0 hom. )

Consequence

GABRB2
NM_001371727.1 missense

Scores

3
16

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 3.57
Variant links:
Genes affected
GABRB2 (HGNC:4082): (gamma-aminobutyric acid type A receptor subunit beta2) The gamma-aminobutyric acid (GABA) A receptor is a multisubunit chloride channel that mediates the fastest inhibitory synaptic transmission in the central nervous system. This gene encodes GABA A receptor, beta 2 subunit. It is mapped to chromosome 5q34 in a cluster comprised of genes encoding alpha 1 and gamma 2 subunits of the GABA A receptor. Alternative splicing of this gene generates 2 transcript variants, differing by a 114 bp insertion. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

PP2
Missense variant in the GABRB2 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 45 curated pathogenic missense variants (we use a threshold of 10). The gene has 42 curated benign missense variants. Gene score misZ: 3.3968 (above the threshold of 3.09). Trascript score misZ: 4.0905 (above the threshold of 3.09). GenCC associations: The gene is linked to undetermined early-onset epileptic encephalopathy, epileptic encephalopathy, infantile or early childhood, 2.
BP4
Computational evidence support a benign effect (MetaRNN=0.13391298).
BP6
Variant 5-161294110-T-C is Benign according to our data. Variant chr5-161294110-T-C is described in ClinVar as [Benign]. Clinvar id is 838686.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High AC in GnomAdExome4 at 10 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
GABRB2NM_001371727.1 linkc.1510A>G p.Ile504Val missense_variant Exon 10 of 10 ENST00000393959.6 NP_001358656.1
GABRB2NM_021911.3 linkc.1510A>G p.Ile504Val missense_variant Exon 11 of 11 NP_068711.1 P47870-2
GABRB2NM_000813.3 linkc.1396A>G p.Ile466Val missense_variant Exon 10 of 10 NP_000804.1 P47870-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
GABRB2ENST00000393959.6 linkc.1510A>G p.Ile504Val missense_variant Exon 10 of 10 1 NM_001371727.1 ENSP00000377531.1 P47870-2

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152090
Hom.:
0
Cov.:
32
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000796
AC:
2
AN:
251194
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135760
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000684
AC:
10
AN:
1461276
Hom.:
0
Cov.:
30
AF XY:
0.00000963
AC XY:
7
AN XY:
726832
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000900
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152090
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74280
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:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000579
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

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

Submissions by phenotype

Intellectual disability Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJun 24, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.054
BayesDel_addAF
Benign
-0.043
T
BayesDel_noAF
Benign
-0.28
CADD
Benign
20
DANN
Benign
0.97
DEOGEN2
Benign
0.21
T;T;.;T;.;T
Eigen
Benign
-0.16
Eigen_PC
Benign
0.080
FATHMM_MKL
Uncertain
0.87
D
LIST_S2
Uncertain
0.87
.;D;.;D;D;D
M_CAP
Benign
0.0072
T
MetaRNN
Benign
0.13
T;T;T;T;T;T
MetaSVM
Benign
-0.54
T
MutationAssessor
Benign
-0.92
N;N;.;.;.;.
PrimateAI
Uncertain
0.54
T
PROVEAN
Benign
-0.080
N;N;N;N;N;N
REVEL
Benign
0.22
Sift
Benign
0.81
T;T;T;T;T;T
Sift4G
Benign
0.96
T;T;T;T;T;T
Polyphen
0.0010
B;B;B;B;B;B
Vest4
0.16
MutPred
0.62
Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);.;.;.;.;
MVP
0.41
MPC
0.26
ClinPred
0.18
T
GERP RS
5.8
Varity_R
0.11
gMVP
0.19

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: rs753338867; hg19: chr5-160721117; API