Variant 3-112991145-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_014170.4(GTPBP8):c.146A>G(p.Tyr49Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000384 in 1,613,906 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000042 ( 0 hom. )

Consequence

GTPBP8
NM_014170.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.12

Variant links:

Genes affected

GTPBP8 (HGNC:25007): (GTP binding protein 8 (putative)) Predicted to enable GTP binding activity and metal ion binding activity. Located in mitochondrion. [provided by Alliance of Genome Resources, Apr 2022]

GTPBP8 links:

ENSG00000272844 (HGNC:):

ENSG00000272844 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.3984191).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GTPBP8	NM_014170.4 linkuse as main transcript	c.146A>G	p.Tyr49Cys	missense_variant	1/6	ENST00000383678.8	NP_054889.2	Q8N3Z3-1Q9P025
GTPBP8	NM_138485.2 linkuse as main transcript	c.146A>G	p.Tyr49Cys	missense_variant	1/5		NP_612494.1	Q8N3Z3-2
GTPBP8	XM_047448046.1 linkuse as main transcript	c.146A>G	p.Tyr49Cys	missense_variant	1/3		XP_047304002.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GTPBP8	ENST00000383678.8 linkuse as main transcript	c.146A>G	p.Tyr49Cys	missense_variant	1/6	1	NM_014170.4	ENSP00000373176.2		Q8N3Z3-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152214

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000199

AC:

AN:

250752

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135746

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:

0.0000353

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000417

AC:

AN:

1461692

Hom.:

Cov.:

AF XY:

0.0000399

AC XY:

AN XY:

727156

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:

0.0000522

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152214

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74362

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000508

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.0000165

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

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 submitter

clinical testing

Ambry Genetics

Nov 10, 2024

The c.146A>G (p.Y49C) alteration is located in exon 1 (coding exon 1) of the GTPBP8 gene. This alteration results from a A to G substitution at nucleotide position 146, causing the tyrosine (Y) at amino acid position 49 to be replaced by a cysteine (C). 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

0.16

BayesDel_addAF

Benign

-0.060

BayesDel_noAF

Benign

-0.19

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.013

T;.;T

Eigen

Benign

-0.031

Eigen_PC

Benign

-0.089

FATHMM_MKL

Uncertain

0.92

LIST_S2

Uncertain

0.90

D;.;D

M_CAP

Benign

0.065

MetaRNN

Benign

0.40

T;T;T

MetaSVM

Benign

-0.71

MutationAssessor

Benign

1.8

L;L;.

PrimateAI

Benign

0.41

PROVEAN

Benign

-2.2

N;D;.

REVEL

Uncertain

0.30

Sift

Uncertain

0.0010

D;D;.

Sift4G

Uncertain

0.0020

D;D;D

Polyphen

0.99

D;D;.

Vest4

0.53

MutPred

0.57

Loss of MoRF binding (P = 0.082);Loss of MoRF binding (P = 0.082);Loss of MoRF binding (P = 0.082);

MVP

0.38

MPC

0.50

ClinPred

0.45

GERP RS

2.4

Varity_R

0.28

gMVP

0.58

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over