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GeneBe

6-89190209-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_002042.5(GABRR1):c.611G>A(p.Arg204Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00000807 in 1,611,416 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000075 ( 0 hom. )

Consequence

GABRR1
NM_002042.5 missense

Scores

3
9
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.77
Variant links:
Genes affected
GABRR1 (HGNC:4090): (gamma-aminobutyric acid type A receptor subunit rho1) GABA is the major inhibitory neurotransmitter in the mammalian brain where it acts at GABA receptors, which are ligand-gated chloride channels. GABRR1 is a member of the rho subunit family. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Feb 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GABRR1NM_002042.5 linkuse as main transcriptc.611G>A p.Arg204Gln missense_variant 6/10 ENST00000454853.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GABRR1ENST00000454853.7 linkuse as main transcriptc.611G>A p.Arg204Gln missense_variant 6/101 NM_002042.5 P1P24046-1
GABRR1ENST00000435811.5 linkuse as main transcriptc.560G>A p.Arg187Gln missense_variant 5/92 P24046-2
GABRR1ENST00000369451.7 linkuse as main transcriptc.350G>A p.Arg117Gln missense_variant 8/125 P24046-3
GABRR1ENST00000457434.1 linkuse as main transcriptc.*572G>A 3_prime_UTR_variant, NMD_transcript_variant 7/115

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152176
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000121
AC:
3
AN:
248718
Hom.:
0
AF XY:
0.00000744
AC XY:
1
AN XY:
134478
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:
0.0000334
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000177
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000754
AC:
11
AN:
1459240
Hom.:
0
Cov.:
30
AF XY:
0.00000827
AC XY:
6
AN XY:
725950
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000117
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000810
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152176
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
74344
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000918
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.0000247
AC:
3

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 02, 2023The c.611G>A (p.R204Q) alteration is located in exon 6 (coding exon 6) of the GABRR1 gene. This alteration results from a G to A substitution at nucleotide position 611, causing the arginine (R) at amino acid position 204 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.099
BayesDel_addAF
Benign
0.0097
T
BayesDel_noAF
Benign
-0.12
Cadd
Pathogenic
29
Dann
Pathogenic
1.0
DEOGEN2
Benign
0.18
T;.;.;.;.
Eigen
Uncertain
0.63
Eigen_PC
Uncertain
0.64
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Pathogenic
0.97
D;D;.;D;.
M_CAP
Benign
0.038
D
MetaRNN
Uncertain
0.59
D;D;D;D;D
MetaSVM
Uncertain
0.032
D
MutationAssessor
Uncertain
2.4
M;.;.;.;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Pathogenic
0.79
T
PROVEAN
Benign
-1.7
N;N;.;.;N
REVEL
Uncertain
0.44
Sift
Uncertain
0.011
D;D;.;.;D
Sift4G
Uncertain
0.030
D;D;D;D;D
Polyphen
0.99
D;D;.;.;.
Vest4
0.54
MutPred
0.56
Loss of glycosylation at S203 (P = 0.166);.;.;.;.;
MVP
0.92
MPC
0.89
ClinPred
0.87
D
GERP RS
5.7
Varity_R
0.22
gMVP
0.53

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.20
Details are displayed if max score is > 0.2
DS_AL_spliceai
0.20
Position offset: 38

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: rs767116686; hg19: chr6-89899928; COSMIC: COSV65618756; API