1-2030027-C-T

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_000815.5(GABRD):​c.1104C>T​(p.Ala368=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.032 in 1,612,650 control chromosomes in the GnomAD database, including 1,063 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.029 ( 106 hom., cov: 33)
Exomes 𝑓: 0.032 ( 957 hom. )

Consequence

GABRD
NM_000815.5 synonymous

Scores

6

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -3.34
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0015837848).
BP6
Variant 1-2030027-C-T is Benign according to our data. Variant chr1-2030027-C-T is described in ClinVar as [Benign]. Clinvar id is 460004.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-2030027-C-T is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=-3.34 with no splicing effect.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.102 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GABRDNM_000815.5 linkuse as main transcriptc.1104C>T p.Ala368= synonymous_variant 9/9 ENST00000378585.7 NP_000806.2
GABRDXM_017000936.2 linkuse as main transcriptc.1809C>T p.Ala603= synonymous_variant 8/8 XP_016856425.1
GABRDXM_011541194.4 linkuse as main transcriptc.1143C>T p.Ala381= synonymous_variant 9/9 XP_011539496.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GABRDENST00000378585.7 linkuse as main transcriptc.1104C>T p.Ala368= synonymous_variant 9/91 NM_000815.5 ENSP00000367848 P1

Frequencies

GnomAD3 genomes
AF:
0.0288
AC:
4391
AN:
152246
Hom.:
106
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00579
Gnomad AMI
AF:
0.0351
Gnomad AMR
AF:
0.0265
Gnomad ASJ
AF:
0.0657
Gnomad EAS
AF:
0.110
Gnomad SAS
AF:
0.0364
Gnomad FIN
AF:
0.0631
Gnomad MID
AF:
0.0475
Gnomad NFE
AF:
0.0290
Gnomad OTH
AF:
0.0392
GnomAD3 exomes
AF:
0.0396
AC:
9827
AN:
248252
Hom.:
290
AF XY:
0.0401
AC XY:
5409
AN XY:
134996
show subpopulations
Gnomad AFR exome
AF:
0.00576
Gnomad AMR exome
AF:
0.0238
Gnomad ASJ exome
AF:
0.0631
Gnomad EAS exome
AF:
0.125
Gnomad SAS exome
AF:
0.0347
Gnomad FIN exome
AF:
0.0644
Gnomad NFE exome
AF:
0.0295
Gnomad OTH exome
AF:
0.0429
GnomAD4 exome
AF:
0.0324
AC:
47277
AN:
1460286
Hom.:
957
Cov.:
32
AF XY:
0.0328
AC XY:
23798
AN XY:
726424
show subpopulations
Gnomad4 AFR exome
AF:
0.00526
Gnomad4 AMR exome
AF:
0.0236
Gnomad4 ASJ exome
AF:
0.0616
Gnomad4 EAS exome
AF:
0.101
Gnomad4 SAS exome
AF:
0.0335
Gnomad4 FIN exome
AF:
0.0632
Gnomad4 NFE exome
AF:
0.0285
Gnomad4 OTH exome
AF:
0.0373
GnomAD4 genome
AF:
0.0288
AC:
4390
AN:
152364
Hom.:
106
Cov.:
33
AF XY:
0.0312
AC XY:
2323
AN XY:
74504
show subpopulations
Gnomad4 AFR
AF:
0.00577
Gnomad4 AMR
AF:
0.0267
Gnomad4 ASJ
AF:
0.0657
Gnomad4 EAS
AF:
0.110
Gnomad4 SAS
AF:
0.0364
Gnomad4 FIN
AF:
0.0631
Gnomad4 NFE
AF:
0.0290
Gnomad4 OTH
AF:
0.0388
Alfa
AF:
0.0303
Hom.:
44
Bravo
AF:
0.0257
TwinsUK
AF:
0.0272
AC:
101
ALSPAC
AF:
0.0272
AC:
105
ESP6500AA
AF:
0.00614
AC:
27
ESP6500EA
AF:
0.0276
AC:
237
ExAC
AF:
0.0384
AC:
4660
Asia WGS
AF:
0.0790
AC:
274
AN:
3478
EpiCase
AF:
0.0308
EpiControl
AF:
0.0319

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Idiopathic generalized epilepsy Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 01, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.57
CADD
Benign
2.3
DANN
Benign
0.83
FATHMM_MKL
Benign
0.021
N
LIST_S2
Benign
0.57
T;T
MetaRNN
Benign
0.0016
T;T
MutationTaster
Benign
0.00011
P
GERP RS
-7.6

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: rs28398772; hg19: chr1-1961466; COSMIC: COSV66080089; COSMIC: COSV66080089; API