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GeneBe

6-89264495-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_002043.5(GABRR2):c.1003G>A(p.Val335Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000684 in 1,461,876 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 (no stars).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

GABRR2
NM_002043.5 missense

Scores

13
3
1

Clinical Significance

Uncertain significance no assertion criteria provided U:1

Conservation

PhyloP100: 7.91
Variant links:
Genes affected
GABRR2 (HGNC:4091): (gamma-aminobutyric acid type A receptor subunit rho2) Gamma-aminobutyric acid (GABA) is the major inhibitory neurotransmitter in the mammalian brain where it acts at GABA receptors, which are ligand-gated chloride channels. The protein encoded by this gene is a member of the rho subunit family and is a component of the GABA type A receptor complex. This gene exists on chromosome 6q next to the gene encoding the rho 1 subunit of the GABA type A receptor, in a region thought to be associated with susceptibility for psychiatric disorders and epilepsy. Polymorphisms in this gene may also be associated with alcohol dependence, and general cognitive ability. [provided by RefSeq, Apr 2016]

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ACMG classification

Classification made for transcript

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, 0.907

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GABRR2NM_002043.5 linkuse as main transcriptc.1003G>A p.Val335Met missense_variant 8/9 ENST00000402938.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GABRR2ENST00000402938.4 linkuse as main transcriptc.1003G>A p.Val335Met missense_variant 8/91 NM_002043.5 P1P28476-1
GABRR2ENST00000602432.1 linkuse as main transcriptn.834G>A non_coding_transcript_exon_variant 5/62

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.00000795
AC:
2
AN:
251422
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135872
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000684
AC:
10
AN:
1461876
Hom.:
0
Cov.:
32
AF XY:
0.00000825
AC XY:
6
AN XY:
727240
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000540
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
31
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Progressive sensorineural hearing impairment Uncertain:1
Uncertain significance, no assertion criteria providedresearchOtology & Neurotology- Genomics of vestibular disorders (CTS-495), Jose Antonio López Escámez, Centro Pfizer - Universidad de Granada - Junta de Andalucía de Genómica e Investigación Oncológica (GENYO)Sep 03, 2016- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.93
BayesDel_addAF
Pathogenic
0.37
D
BayesDel_noAF
Pathogenic
0.40
Cadd
Pathogenic
33
Dann
Pathogenic
1.0
DEOGEN2
Uncertain
0.56
D
Eigen
Pathogenic
1.0
Eigen_PC
Pathogenic
0.95
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Pathogenic
0.99
D
M_CAP
Uncertain
0.16
D
MetaRNN
Pathogenic
0.91
D
MetaSVM
Uncertain
0.52
D
MutationAssessor
Pathogenic
4.2
H
MutationTaster
Benign
1.0
D
PrimateAI
Pathogenic
0.88
D
REVEL
Pathogenic
0.81
Sift4G
Pathogenic
0.0010
D
Vest4
0.84
MVP
0.96
MPC
0.65
ClinPred
0.99
D
GERP RS
5.9
Varity_R
0.42
gMVP
0.90

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: rs756735401; hg19: chr6-89974214; API