chr5-170794255-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_014211.3(GABRP):ā€‹c.197C>Gā€‹(p.Thr66Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000411 in 1,460,366 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 29)
Exomes š‘“: 0.0000041 ( 0 hom. )

Consequence

GABRP
NM_014211.3 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.85
Variant links:
Genes affected
GABRP (HGNC:4089): (gamma-aminobutyric acid type A receptor subunit pi) The gamma-aminobutyric acid (GABA) A receptor is a multisubunit chloride channel that mediates the fastest inhibitory synaptic transmission in the central nervous system. The subunit encoded by this gene is expressed in several non-neuronal tissues including the uterus and ovaries. This subunit can assemble with known GABA A receptor subunits, and the presence of this subunit alters the sensitivity of recombinant receptors to modulatory agents such as pregnanolone. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2014]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.13013437).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GABRPNM_014211.3 linkuse as main transcriptc.197C>G p.Thr66Ser missense_variant 4/10 ENST00000265294.9
GABRPNM_001291985.2 linkuse as main transcriptc.197C>G p.Thr66Ser missense_variant 4/9
GABRPXM_024446012.2 linkuse as main transcriptc.197C>G p.Thr66Ser missense_variant 4/10
GABRPXM_005265872.2 linkuse as main transcriptc.-41C>G 5_prime_UTR_variant 2/8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GABRPENST00000265294.9 linkuse as main transcriptc.197C>G p.Thr66Ser missense_variant 4/101 NM_014211.3 P1

Frequencies

GnomAD3 genomes
Cov.:
29
GnomAD4 exome
AF:
0.00000411
AC:
6
AN:
1460366
Hom.:
0
Cov.:
30
AF XY:
0.00000413
AC XY:
3
AN XY:
726590
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000540
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
29
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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, 2021The c.197C>G (p.T66S) alteration is located in exon 4 (coding exon 3) of the GABRP gene. This alteration results from a C to G substitution at nucleotide position 197, causing the threonine (T) at amino acid position 66 to be replaced by a serine (S). 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
0.12
BayesDel_addAF
Benign
-0.056
T
BayesDel_noAF
Benign
-0.32
CADD
Benign
14
DANN
Benign
0.46
DEOGEN2
Benign
0.068
.;.;.;T;T;.;.
Eigen
Benign
-0.40
Eigen_PC
Benign
-0.14
FATHMM_MKL
Benign
0.69
D
LIST_S2
Benign
0.64
T;T;T;.;T;T;T
M_CAP
Benign
0.0063
T
MetaRNN
Benign
0.13
T;T;T;T;T;T;T
MetaSVM
Benign
-0.92
T
MutationAssessor
Benign
-1.6
.;.;.;N;N;.;.
MutationTaster
Benign
0.94
D;D;D;D
PrimateAI
Uncertain
0.51
T
PROVEAN
Benign
1.9
N;N;N;N;N;N;N
REVEL
Benign
0.18
Sift
Benign
1.0
T;T;T;T;T;T;T
Sift4G
Benign
1.0
T;T;T;T;T;T;T
Polyphen
0.0010, 0.0070
.;.;.;B;B;B;.
Vest4
0.13, 0.13, 0.10, 0.12
MutPred
0.50
Gain of disorder (P = 0.0431);Gain of disorder (P = 0.0431);Gain of disorder (P = 0.0431);Gain of disorder (P = 0.0431);Gain of disorder (P = 0.0431);Gain of disorder (P = 0.0431);Gain of disorder (P = 0.0431);
MVP
0.78
MPC
0.11
ClinPred
0.36
T
GERP RS
4.5
Varity_R
0.075
gMVP
0.30

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr5-170221259; API