dbSNP rs565933238: GTPBP1:p.Ala20Asp (chr22-38706014-C-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_004286.5(GTPBP1):c.59C>A(p.Ala20Asp) variant causes a missense change. The variant allele was found at a frequency of 0.00000311 in 1,286,600 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000031 ( 0 hom. )

Consequence

GTPBP1
NM_004286.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.46

Variant links:

Genes affected

GTPBP1 (HGNC:4669): (GTP binding protein 1) This gene is upregulated by interferon-gamma and encodes a protein that is a member of the AGP11/GTPBP1 family of GTP-binding proteins. A structurally similar protein has been found in mouse, where disruption of the gene for that protein had no observable phenotype. [provided by RefSeq, Jul 2008]

GTPBP1 links:

Genome browser will be placed here

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=0.17290422).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GTPBP1	NM_004286.5 link	c.59C>A	p.Ala20Asp	missense_variant	Exon 1 of 12	ENST00000216044.10	NP_004277.2	O00178

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
GTPBP1	ENST00000216044.10 link	c.59C>A	p.Ala20Asp	missense_variant	Exon 1 of 12	1	NM_004286.5	ENSP00000216044.5	O00178
GTPBP1	ENST00000484657.5 link	c.-52+197C>A		intron_variant	Intron 1 of 3	4		ENSP00000442881.1	F5H716
GTPBP1	ENST00000418601.1 link	n.59C>A		non_coding_transcript_exon_variant	Exon 1 of 4	2		ENSP00000397891.1	F8WAZ4
GTPBP1	ENST00000461428.1 link	n.-104C>A		upstream_gene_variant		2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000154

AC:

AN:

65108

Hom.:

AF XY:

0.0000260

AC XY:

AN XY:

38474

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:

0.0000687

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000311

AC:

AN:

1286600

Hom.:

Cov.:

AF XY:

0.00000475

AC XY:

AN XY:

631644

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:

0.0000566

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 28, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.59C>A (p.A20D) alteration is located in exon 1 (coding exon 1) of the GTPBP1 gene. This alteration results from a C to A substitution at nucleotide position 59, causing the alanine (A) at amino acid position 20 to be replaced by an aspartic acid (D). 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

Pathogenic

0.77

BayesDel_addAF

Benign

-0.038

BayesDel_noAF

Benign

-0.29

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.098

Eigen

Benign

0.088

Eigen_PC

Benign

0.21

FATHMM_MKL

Benign

0.53

LIST_S2

Benign

0.81

M_CAP

Uncertain

0.086

MetaRNN

Benign

0.17

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.7

PrimateAI

Pathogenic

0.91

PROVEAN

Benign

-0.32

REVEL

Benign

0.18

Sift

Benign

0.079

Sift4G

Uncertain

0.055

Polyphen

0.18

Vest4

0.41

MutPred

0.050

Loss of glycosylation at P21 (P = 0.0848);

MVP

0.17

MPC

0.38

ClinPred

0.85

GERP RS

4.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.8

Varity_R

0.40

gMVP

0.60

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