rs77892827
Variant summary
Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2
The NM_000815.5(GABRD):c.414G>A(p.Thr138=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000908 in 1,613,010 control chromosomes in the GnomAD database, including 10 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).
Frequency
Genomes: 𝑓 0.0043 ( 3 hom., cov: 34)
Exomes 𝑓: 0.00055 ( 7 hom. )
Consequence
GABRD
NM_000815.5 synonymous
NM_000815.5 synonymous
Scores
6
Clinical Significance
Conservation
PhyloP100: -8.92
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=0.005391568).
BP6
?
Variant 1-2025682-G-A is Benign according to our data. Variant chr1-2025682-G-A is described in ClinVar as [Benign]. Clinvar id is 460010.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
?
Synonymous conserved (PhyloP=-8.92 with no splicing effect.
BS1
?
Variant frequency is greater than expected in population afr. gnomad4_exome allele frequency = 0.00055 (803/1460620) while in subpopulation AFR AF= 0.0165 (553/33478). AF 95% confidence interval is 0.0154. There are 7 homozygotes in gnomad4_exome. There are 372 alleles in male gnomad4_exome subpopulation. Median coverage is 35. This position pass quality control queck.
BS2
?
High Homozygotes in GnomAd at 3 gene
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
GABRD | NM_000815.5 | c.414G>A | p.Thr138= | synonymous_variant | 4/9 | ENST00000378585.7 | |
GABRD | XM_017000936.2 | c.1119G>A | p.Thr373= | synonymous_variant | 3/8 | ||
GABRD | XM_011541194.4 | c.453G>A | p.Thr151= | synonymous_variant | 4/9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
GABRD | ENST00000378585.7 | c.414G>A | p.Thr138= | synonymous_variant | 4/9 | 1 | NM_000815.5 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.00435 AC: 662AN: 152272Hom.: 3 Cov.: 34
GnomAD3 genomes
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GnomAD3 exomes AF: 0.00116 AC: 291AN: 250440Hom.: 2 AF XY: 0.000987 AC XY: 134AN XY: 135744
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GnomAD4 exome AF: 0.000550 AC: 803AN: 1460620Hom.: 7 Cov.: 35 AF XY: 0.000512 AC XY: 372AN XY: 726622
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GnomAD4 genome ? AF: 0.00434 AC: 662AN: 152390Hom.: 3 Cov.: 34 AF XY: 0.00439 AC XY: 327AN XY: 74520
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ClinVar
Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
GABRD-related disorder Benign:1
Benign, criteria provided, single submitter | clinical testing | PreventionGenetics, part of Exact Sciences | Sep 09, 2019 | This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). - |
Idiopathic generalized epilepsy Benign:1
Benign, criteria provided, single submitter | clinical testing | Invitae | Jan 29, 2024 | - - |
Computational scores
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Name
Calibrated prediction
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BayesDel_noAF
Benign
Cadd
Benign
Dann
Benign
FATHMM_MKL
Benign
N
LIST_S2
Benign
T
MetaRNN
Benign
T
MutationTaster
Benign
D
GERP RS
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at