NM_000815.5:c.7G>T

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_000815.5(GABRD):​c.7G>T​(p.Ala3Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000127 in 1,090,338 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 Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 26)
Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

GABRD
NM_000815.5 missense

Scores

1
16

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.361

Publications

0 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: ClinGen, Ambry Genetics
  • epilepsy
    Inheritance: AD Classification: LIMITED Submitted by: ClinGen
  • epilepsy, idiopathic generalized, susceptibility to, 10
    Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.005064428).
BS2
High AC in GnomAd4 at 17 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000815.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
GABRD
NM_000815.5
MANE Select
c.7G>Tp.Ala3Ser
missense
Exon 1 of 9NP_000806.2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
GABRD
ENST00000378585.7
TSL:1 MANE Select
c.7G>Tp.Ala3Ser
missense
Exon 1 of 9ENSP00000367848.4O14764
GABRD
ENST00000638771.1
TSL:3
c.7G>Tp.Ala3Ser
missense
Exon 1 of 8ENSP00000492435.1A0A1W2PRC4
GABRD
ENST00000640067.1
TSL:5
c.7G>Tp.Ala3Ser
missense
Exon 1 of 9ENSP00000491844.1A0A1W2PQR3

Frequencies

GnomAD3 genomes
AF:
0.000116
AC:
17
AN:
147062
Hom.:
0
Cov.:
26
show subpopulations
Gnomad AFR
AF:
0.0000246
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00231
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00327
Gnomad NFE
AF:
0.0000605
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000957
AC:
3
AN:
3134
AF XY:
0.00101
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000129
AC:
122
AN:
943180
Hom.:
0
Cov.:
30
AF XY:
0.000146
AC XY:
65
AN XY:
445868
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
18162
American (AMR)
AF:
0.00
AC:
0
AN:
4452
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
8444
East Asian (EAS)
AF:
0.00
AC:
0
AN:
10908
South Asian (SAS)
AF:
0.00238
AC:
51
AN:
21388
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10518
Middle Eastern (MID)
AF:
0.000927
AC:
2
AN:
2158
European-Non Finnish (NFE)
AF:
0.0000708
AC:
59
AN:
833390
Other (OTH)
AF:
0.000296
AC:
10
AN:
33760
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.489
Heterozygous variant carriers
0
6
13
19
26
32
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000116
AC:
17
AN:
147158
Hom.:
0
Cov.:
26
AF XY:
0.000195
AC XY:
14
AN XY:
71736
show subpopulations
African (AFR)
AF:
0.0000246
AC:
1
AN:
40716
American (AMR)
AF:
0.00
AC:
0
AN:
14918
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3396
East Asian (EAS)
AF:
0.00
AC:
0
AN:
4876
South Asian (SAS)
AF:
0.00232
AC:
11
AN:
4750
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
9176
Middle Eastern (MID)
AF:
0.00355
AC:
1
AN:
282
European-Non Finnish (NFE)
AF:
0.0000605
AC:
4
AN:
66110
Other (OTH)
AF:
0.00
AC:
0
AN:
2030
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.507
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000604
ExAC
AF:
0.00112
AC:
15

ClinVar

ClinVar submissions as Germline
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Idiopathic generalized epilepsy (1)
-
1
-
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.083
BayesDel_addAF
Benign
-0.43
T
BayesDel_noAF
Benign
-0.40
CADD
Benign
8.8
DANN
Benign
0.81
DEOGEN2
Benign
0.097
T
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.0016
N
LIST_S2
Benign
0.31
T
MetaRNN
Benign
0.0051
T
MetaSVM
Benign
-0.93
T
MutationAssessor
Benign
0.55
N
PhyloP100
0.36
PrimateAI
Pathogenic
0.81
D
PROVEAN
Benign
0.26
N
REVEL
Benign
0.11
Sift
Benign
0.42
T
Sift4G
Benign
0.86
T
Polyphen
0.0070
B
Vest4
0.15
MutPred
0.26
Gain of phosphorylation at A3 (P = 0.0166)
MVP
0.51
MPC
0.69
ClinPred
0.017
T
GERP RS
0.34
PromoterAI
0.0096
Neutral
Varity_R
0.11
gMVP
0.41
Mutation Taster
=93/7
polymorphism

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

Other links and lift over

dbSNP: rs759523853; hg19: chr1-1950869; API