rs756881793

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 1P and 4B. PP3BS2

The NM_000815.5(GABRD):c.1324G>A(p.Val442Ile) variant causes a missense change. The variant allele was found at a frequency of 0.00000498 in 1,406,802 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000050 ( 0 hom. )

Consequence

GABRD
NM_000815.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.38

Publications

1 publications found

Variant links:

Genes affected

GABRD (HGNC:4084): (gamma-aminobutyric acid type A receptor subunit delta) Gamma-aminobutyric acid (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. The GABA-A receptor is generally pentameric and there are five types of subunits: alpha, beta, gamma, delta, and rho. This gene encodes the delta subunit. Mutations in this gene have been associated with susceptibility to generalized epilepsy with febrile seizures, type 5. Alternatively spliced transcript variants have been described for this gene, but their biological validity has not been determined. [provided by RefSeq, Jul 2008]

GABRD Gene-Disease associations (from GenCC):

complex neurodevelopmental disorder
Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics, ClinGen
epilepsy
Inheritance: AD Classification: LIMITED Submitted by: ClinGen
epilepsy, idiopathic generalized, susceptibility to, 10
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)

GABRD links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.748

BS2

High AC in GnomAdExome4 at 7 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GABRD	NM_000815.5 link	c.1324G>A	p.Val442Ile	missense_variant	Exon 9 of 9	ENST00000378585.7	NP_000806.2	O14764A8K496
GABRD	XM_017000936.2 link	c.2029G>A	p.Val677Ile	missense_variant	Exon 8 of 8		XP_016856425.1
GABRD	XM_011541194.4 link	c.1363G>A	p.Val455Ile	missense_variant	Exon 9 of 9		XP_011539496.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GABRD	ENST00000378585.7 link	c.1324G>A	p.Val442Ile	missense_variant	Exon 9 of 9	1	NM_000815.5	ENSP00000367848.4		O14764

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000926

AC:

AN:

215922

AF XY:

0.0000171

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000203

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000498

AC:

AN:

1406802

Hom.:

Cov.:

AF XY:

0.00000722

AC XY:

AN XY:

692490

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31800

American (AMR)

AF:

0.00

AC:

AN:

38176

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

23512

East Asian (EAS)

AF:

0.0000258

AC:

AN:

38786

South Asian (SAS)

AF:

0.00

AC:

AN:

79846

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50708

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5520

European-Non Finnish (NFE)

AF:

0.00000555

AC:

AN:

1080584

Other (OTH)

AF:

0.00

AC:

AN:

57870

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000826

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Idiopathic generalized epilepsy

Uncertain:1

Aug 20, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Uncertain

0.061

BayesDel_noAF

Benign

-0.15

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.15

T;.;.;.

Eigen

Uncertain

0.29

Eigen_PC

Uncertain

0.24

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.95

D;D;D;D

M_CAP

Uncertain

0.14

MetaRNN

Pathogenic

0.75

D;D;D;D

MetaSVM

Uncertain

0.29

MutationAssessor

Benign

0.70

N;.;.;.

PhyloP100

5.4

PrimateAI

Uncertain

0.69

PROVEAN

Benign

0.18

N;.;.;.

REVEL

Uncertain

0.54

Sift

Benign

0.071

T;.;.;.

Sift4G

Benign

0.25

T;.;.;.

Polyphen

1.0

D;.;.;.

Vest4

0.51

MutPred

0.71

Loss of catalytic residue at V442 (P = 0.0173);.;.;.;

MVP

0.77

MPC

1.6

ClinPred

0.81

GERP RS

3.8

Varity_R

0.048

gMVP

0.49

Mutation Taster

=97/3

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

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

Publications

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rs756881793

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over