rs34617047

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 0P and 15B. BP4_StrongBP6_ModerateBP7BS1BS2

The NM_002043.5(GABRR2):​c.186C>T​(p.Asp62=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00174 in 1,613,790 control chromosomes in the GnomAD database, including 40 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0098 ( 21 hom., cov: 31)
Exomes 𝑓: 0.00090 ( 19 hom. )

Consequence

GABRR2
NM_002043.5 synonymous

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -1.25
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 Benign. Variant got -15 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.72).
BP6
Variant 6-89299793-G-A is Benign according to our data. Variant chr6-89299793-G-A is described in ClinVar as [Benign]. Clinvar id is 714316.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=-1.25 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00984 (1498/152272) while in subpopulation AFR AF= 0.0343 (1426/41552). AF 95% confidence interval is 0.0328. There are 21 homozygotes in gnomad4. There are 706 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 21 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GABRR2NM_002043.5 linkuse as main transcriptc.186C>T p.Asp62= synonymous_variant 2/9 ENST00000402938.4 NP_002034.3
GABRR2XM_047418599.1 linkuse as main transcriptc.261C>T p.Asp87= synonymous_variant 2/10 XP_047274555.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GABRR2ENST00000402938.4 linkuse as main transcriptc.186C>T p.Asp62= synonymous_variant 2/91 NM_002043.5 ENSP00000386029 P1P28476-1
GABRR2ENST00000602808.1 linkuse as main transcriptn.320C>T non_coding_transcript_exon_variant 2/43

Frequencies

GnomAD3 genomes
AF:
0.00985
AC:
1498
AN:
152154
Hom.:
21
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0344
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00321
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000882
Gnomad OTH
AF:
0.00764
GnomAD3 exomes
AF:
0.00233
AC:
584
AN:
251172
Hom.:
13
AF XY:
0.00155
AC XY:
211
AN XY:
135736
show subpopulations
Gnomad AFR exome
AF:
0.0329
Gnomad AMR exome
AF:
0.00124
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:
0.0000441
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.000898
AC:
1313
AN:
1461518
Hom.:
19
Cov.:
30
AF XY:
0.000741
AC XY:
539
AN XY:
727064
show subpopulations
Gnomad4 AFR exome
AF:
0.0330
Gnomad4 AMR exome
AF:
0.00141
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000252
Gnomad4 OTH exome
AF:
0.00182
GnomAD4 genome
AF:
0.00984
AC:
1498
AN:
152272
Hom.:
21
Cov.:
31
AF XY:
0.00948
AC XY:
706
AN XY:
74472
show subpopulations
Gnomad4 AFR
AF:
0.0343
Gnomad4 AMR
AF:
0.00321
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000882
Gnomad4 OTH
AF:
0.00756
Alfa
AF:
0.00453
Hom.:
3
Bravo
AF:
0.0108
Asia WGS
AF:
0.00173
AC:
6
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.000178

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpMay 16, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.72
CADD
Benign
0.26
DANN
Benign
0.92

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
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: rs34617047; hg19: chr6-90009512; API