Variant 8-144504390-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_005309.3(GPT):c.86G>A(p.Arg29His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000315 in 1,459,496 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 34)

Exomes 𝑓: 0.000032 ( 0 hom. )

Consequence

GPT
NM_005309.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.39

Variant links:

Genes affected

GPT (HGNC:4552): (glutamic--pyruvic transaminase) This gene encodes cytosolic alanine aminotransaminase 1 (ALT1); also known as glutamate-pyruvate transaminase 1. This enzyme catalyzes the reversible transamination between alanine and 2-oxoglutarate to generate pyruvate and glutamate and, therefore, plays a key role in the intermediary metabolism of glucose and amino acids. Serum activity levels of this enzyme are routinely used as a biomarker of liver injury caused by drug toxicity, infection, alcohol, and steatosis. A related gene on chromosome 16 encodes a putative mitochondrial alanine aminotransaminase.[provided by RefSeq, Nov 2009]

GPT links:

ENSG00000255182 (HGNC:):

ENSG00000255182 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.021974951).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GPT	NM_005309.3 link	c.86G>A	p.Arg29His	missense_variant	1/11	ENST00000394955.3	NP_005300.1	P24298

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GPT	ENST00000394955.3 link	c.86G>A	p.Arg29His	missense_variant	1/11	1	NM_005309.3	ENSP00000378408.2		P24298

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.000129

AC:

AN:

248234

Hom.:

AF XY:

0.000133

AC XY:

AN XY:

134844

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000898

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:

0.00000888

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000315

AC:

AN:

1459496

Hom.:

Cov.:

AF XY:

0.0000358

AC XY:

AN XY:

726156

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.000738

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:

0.00000989

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000589

Hom.:

Bravo

AF:

0.0000491

ExAC

AF:

0.000132

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 14, 2024

The c.86G>A (p.R29H) alteration is located in exon 1 (coding exon 1) of the GPT gene. This alteration results from a G to A substitution at nucleotide position 86, causing the arginine (R) at amino acid position 29 to be replaced by a histidine (H). 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

0.075

BayesDel_addAF

Benign

-0.41

BayesDel_noAF

Benign

-0.44

CADD

Benign

DANN

Benign

0.76

DEOGEN2

Benign

0.15

T;T

Eigen

Benign

-0.77

Eigen_PC

Benign

-0.79

FATHMM_MKL

Benign

0.082

LIST_S2

Benign

0.77

.;T

M_CAP

Benign

0.020

MetaRNN

Benign

0.022

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.090

N;N

PrimateAI

Benign

0.38

PROVEAN

Benign

0.090

N;N

REVEL

Benign

0.039

Sift

Benign

0.37

T;T

Sift4G

Benign

0.36

T;T

Polyphen

0.0

B;B

Vest4

0.11

MutPred

0.41

Loss of MoRF binding (P = 0.0606);Loss of MoRF binding (P = 0.0606);

MVP

0.60

MPC

0.088

ClinPred

0.077

GERP RS

2.1

Varity_R

0.051

gMVP

0.59

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