chr2-240874035-C-T

Variant names:

Variant summary

Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PM2PP3_StrongPP5_Very_Strong

The NM_000030.3(AGXT):c.653C>T(p.Ser218Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,613,612 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

AGXT
NM_000030.3 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:6

Conservation

PhyloP100: 3.40

Variant links:

Genes affected

AGXT (HGNC:341): (alanine--glyoxylate aminotransferase) This gene is expressed only in the liver and the encoded protein is localized mostly in the peroxisomes, where it is involved in glyoxylate detoxification. Mutations in this gene, some of which alter subcellular targetting, have been associated with type I primary hyperoxaluria. [provided by RefSeq, Jul 2008]

AGXT links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 14 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.996

PP5

Variant 2-240874035-C-T is Pathogenic according to our data. Variant chr2-240874035-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 188979.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AGXT	NM_000030.3 link	c.653C>T	p.Ser218Leu	missense_variant	Exon 6 of 11	ENST00000307503.4	NP_000021.1	P21549

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AGXT	ENST00000307503.4 link	c.653C>T	p.Ser218Leu	missense_variant	Exon 6 of 11	1	NM_000030.3	ENSP00000302620.3		P21549
AGXT	ENST00000476698.1 link	n.332+986C>T		intron_variant	Intron 2 of 3	5

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152224

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

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:

0.00000398

AC:

AN:

251102

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135766

show subpopulations

Gnomad AFR exome

AF:

0.0000616

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461388

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726998

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

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:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152224

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74360

show subpopulations

Gnomad4 AFR

AF:

0.0000482

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:

0.0000329

Hom.:

Bravo

AF:

0.0000151

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Primary hyperoxaluria, type I

Pathogenic:4

Nov 27, 2014

Clinical Biochemistry Laboratory, Health Services Laboratory

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: in vitro

- -

Sep 24, 2014

Counsyl

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: literature only

- -

Neuberg Centre For Genomic Medicine, NCGM

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The AGXT c.653C>T (p.Ser218Leu) variant has been observed to be homozygous in individuals affected with primary hyperoxaluria type I (Coulter-Mackie MB et al., 2005). This variant has been reported to affect AGXT protein function (Oppici E et al., 2011). This variant has allele frequency of 0.001% in the gnomad and novel in 1000 genome database. This variant has been submitted to ClinVar as Pathogenic. The amino acid Ser at position 218 is changed to a Leu changing protein sequence and it might alter its composition and physico-chemical properties. The amino acid change p.Ser218Leu in AGXT is predicted as conserved by GERP++ and PhyloP across 100 vertebrates. For these reasons, this variant has been classified as Pathogenic. -

Sep 08, 2021

Natera, Inc.

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

not provided

Pathogenic:2

Jan 29, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

For these reasons, this variant has been classified as Pathogenic. Experimental studies have shown that this missense change affects AGXT function (PMID: 22018727). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt AGXT protein function. ClinVar contains an entry for this variant (Variation ID: 188979). This missense change has been observed in individual(s) with primary hyperoxaluria type I (PMID: 15963748). This variant is present in population databases (rs180177253, gnomAD 0.01%). This sequence change replaces serine, which is neutral and polar, with leucine, which is neutral and non-polar, at codon 218 of the AGXT protein (p.Ser218Leu). -

Apr 23, 2019

Mayo Clinic Laboratories, Mayo Clinic

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

PS3, PS4_moderate, PM2, PP1, PP4 -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.67

BayesDel_addAF

Pathogenic

0.22

BayesDel_noAF

Pathogenic

0.26

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.92

Eigen

Uncertain

0.21

Eigen_PC

Benign

-0.015

FATHMM_MKL

Uncertain

0.82

LIST_S2

Uncertain

0.97

M_CAP

Pathogenic

0.39

MetaRNN

Pathogenic

1.0

MetaSVM

Pathogenic

0.92

MutationAssessor

Pathogenic

3.7

PrimateAI

Benign

0.45

PROVEAN

Uncertain

-3.1

REVEL

Uncertain

0.60

Sift

Uncertain

0.0070

Sift4G

Uncertain

0.0080

Polyphen

0.98

Vest4

0.85

MutPred

0.91

Loss of disorder (P = 0.011);

MVP

0.93

MPC

0.14

ClinPred

0.95

GERP RS

4.1

Varity_R

0.74

gMVP

0.94

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