5-161689009-G-A

Position:

• chr5-161689009-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_000811.3(GABRA6):​c.286G>A​(p.Gly96Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: GABRA6 NM_000811.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 9.88

Genes affected

GABRA6 (HGNC:4080): (gamma-aminobutyric acid type A receptor subunit alpha6) 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. [provided by RefSeq, Jul 2008]

GABRA6 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.855

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GABRA6	NM_000811.3	c.286G>A	p.Gly96Arg	missense_variant	4/9	ENST00000274545.10	NP_000802.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GABRA6	ENST00000274545.10	c.286G>A	p.Gly96Arg	missense_variant	4/9	1	NM_000811.3	ENSP00000274545.5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 04, 2024

The c.286G>A (p.G96R) alteration is located in exon 4 (coding exon 4) of the GABRA6 gene. This alteration results from a G to A substitution at nucleotide position 286, causing the glycine (G) at amino acid position 96 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.70
BayesDel_addAF	Pathogenic	0.32	D
BayesDel_noAF	Pathogenic	0.22
CADD	Pathogenic	32
DANN	Pathogenic	1.0
DEOGEN2	Uncertain	0.65	D;.;.
Eigen	Pathogenic	0.91
Eigen_PC	Pathogenic	0.91
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.98	D;D;D
M_CAP	Uncertain	0.091	D
MetaRNN	Pathogenic	0.85	D;D;D
MetaSVM	Uncertain	0.24	D
MutationAssessor	Uncertain	2.3	M;.;.
PrimateAI	Uncertain	0.75	T
PROVEAN	Pathogenic	-6.1	D;D;D
REVEL	Pathogenic	0.76
Sift	Uncertain	0.0010	D;D;D
Sift4G	Uncertain	0.018	D;D;D
Polyphen		1.0	D;.;.
Vest4		0.88
MutPred		0.59		Gain of phosphorylation at T98 (P = 0.0802);.;.;
MVP		0.96
MPC		0.45
ClinPred		1.0	D
GERP RS		5.7
Varity_R		0.82
gMVP		0.68

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.12		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr5-161116015;