chr4-46250454-G-T
Variant summary
Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2PP2BP4_Moderate
The NM_000807.4(GABRA2):c.1210C>A(p.Pro404Thr) variant causes a missense change. The variant allele was found at a frequency of 0.000000685 in 1,460,372 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )
Consequence
GABRA2
NM_000807.4 missense
NM_000807.4 missense
Scores
1
4
13
Clinical Significance
Conservation
PhyloP100: 6.06
Genes affected
GABRA2 (HGNC:4076): (gamma-aminobutyric acid type A receptor subunit alpha2) 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. At least 16 distinct subunits of GABA-A receptors have been identified. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2013]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 1 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
PP2
?
Missense variant where missense usually causes diseases, GABRA2
BP4
?
Computational evidence support a benign effect (MetaRNN=0.15593734).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
GABRA2 | NM_000807.4 | c.1210C>A | p.Pro404Thr | missense_variant | 10/10 | ENST00000381620.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
GABRA2 | ENST00000381620.9 | c.1210C>A | p.Pro404Thr | missense_variant | 10/10 | 1 | NM_000807.4 | P2 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
GnomAD4 exome AF: 6.85e-7 AC: 1AN: 1460372Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0AN XY: 726532
GnomAD4 exome
AF:
AC:
1
AN:
1460372
Hom.:
Cov.:
31
AF XY:
AC XY:
0
AN XY:
726532
Gnomad4 AFR exome
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GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Mar 01, 2022 | In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. This variant has not been reported in the literature in individuals affected with GABRA2-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces proline, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 464 of the GABRA2 protein (p.Pro464Thr). - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Uncertain
T
BayesDel_noAF
Benign
Cadd
Uncertain
Dann
Benign
DEOGEN2
Benign
T;T;T;T;T;T
Eigen
Benign
Eigen_PC
Uncertain
FATHMM_MKL
Pathogenic
D
M_CAP
Benign
D
MetaRNN
Benign
T;T;T;T;T;T
MetaSVM
Benign
T
MutationAssessor
Benign
L;L;L;L;.;.
MutationTaster
Benign
D;D;D;D;D;D
PrimateAI
Uncertain
T
PROVEAN
Benign
N;N;N;N;.;N
REVEL
Uncertain
Sift
Benign
T;T;T;T;.;T
Sift4G
Benign
T;T;T;T;T;T
Polyphen
B;B;B;B;.;.
Vest4
MutPred
Gain of loop (P = 0.0435);Gain of loop (P = 0.0435);Gain of loop (P = 0.0435);Gain of loop (P = 0.0435);.;.;
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
Publications
No publications associated with this variant yet.