2-240868897-C-G

Variant names:

Variant summary

Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PM2PP3PP5_Very_Strong

The NM_000030.3(AGXT):c.32C>G(p.Pro11Arg) variant causes a missense change. The variant allele was found at a frequency of 0.0000546 in 1,612,894 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000053 ( 1 hom. )

Consequence

AGXT
NM_000030.3 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:13U:1

Conservation

PhyloP100: 6.62

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 11 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.784

PP5

Variant 2-240868897-C-G is Pathogenic according to our data. Variant chr2-240868897-C-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 204069.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.32C>G	p.Pro11Arg	missense_variant	Exon 1 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.32C>G	p.Pro11Arg	missense_variant	Exon 1 of 11	1	NM_000030.3	ENSP00000302620.3		P21549
AGXT	ENST00000472436.1 link	n.52C>G		non_coding_transcript_exon_variant	Exon 1 of 5	2

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152156

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000772

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000158

AC:

AN:

246678

Hom.:

AF XY:

0.000157

AC XY:

AN XY:

134068

show subpopulations

Gnomad AFR exome

AF:

0.0000626

Gnomad AMR exome

AF:

0.000116

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00147

Gnomad SAS exome

AF:

0.0000655

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000364

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.0000527

AC:

AN:

1460620

Hom.:

Cov.:

AF XY:

0.0000606

AC XY:

AN XY:

726580

show subpopulations

Gnomad4 AFR exome

AF:

0.0000896

Gnomad4 AMR exome

AF:

0.000157

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000882

Gnomad4 SAS exome

AF:

0.0000580

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000144

Gnomad4 OTH exome

AF:

0.000166

GnomAD4 genome

AF:

0.0000722

AC:

AN:

152274

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74444

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000774

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.000473

Bravo

AF:

0.0000793

ExAC

AF:

0.000148

AC:

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:13Uncertain:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Primary hyperoxaluria, type I

Pathogenic:9Uncertain:1

Jun 23, 2024

Fulgent Genetics, Fulgent Genetics

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Feb 01, 2024

Laboratory of Medical Genetics, National & Kapodistrian University of Athens

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: curation

- -

Nov 27, 2014

Clinical Biochemistry Laboratory, Health Services Laboratory

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: in vitro

- -

Nov 12, 2020

Biochemical Molecular Genetic Laboratory, King Abdulaziz Medical City

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Mar 25, 2024

Genomic Medicine Center of Excellence, King Faisal Specialist Hospital and Research Centre

Significance: Uncertain significance

Review Status: flagged submission

Collection Method: research

- -

Apr 04, 2020

Natera, Inc.

Significance: Likely pathogenic

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Jan 10, 2023

Revvity Omics, Revvity

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Feb 01, 2013

Arcensus

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Aug 26, 2024

Chinese Inherited Urolithiasis Consortium, The Affiliated Yantai Yuhuangding Hospital of Qingdao University

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: clinical testing

Variant_type:missense/MutationTaster:Disease_causing/CADD:Damaging/phyloP:Conserved/phastCons:Nonconserved/gnomAD_exome_EastAsian:0.0014/ExAC_EastAsian:-/dbSNP:rs34116584 -

Mar 26, 2024

Baylor Genetics

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided

Pathogenic:3

Jun 03, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces proline, which is neutral and non-polar, with arginine, which is basic and polar, at codon 11 of the AGXT protein (p.Pro11Arg). This variant is present in population databases (rs34116584, gnomAD 0.1%), including at least one homozygous and/or hemizygous individual. This missense change has been observed in individual(s) with primary hyperoxaluria (PMID: 22821680, 32556641). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 204069). 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 with a positive predictive value of 95%. Experimental studies have shown that this missense change affects AGXT function (PMID: 22821680). For these reasons, this variant has been classified as Pathogenic. -

Sep 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

AGXT: PM3:Very Strong, PM2:Supporting, PP4, PS3:Supporting -

Sep 18, 2024

GeneDx

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Published functional studies demonstrate showed that p.(P11R) reduced the enzymatic activity to about 31% of the wild-type (PMID: 22821680); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 32102150, 19479957, 31589614, 28904440, 33691640, 22821680, 32556641, 33721035, 35149915, 31328266, 32508047, Saha[article]2021, 37464296, 37306718, 38977330, 30341509, 32792227, 37874369) -

Primary hyperoxaluria

Pathogenic:1

Dec 15, 2023

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Variant summary: AGXT c.32C>G (p.Pro11Arg) results in a non-conservative amino acid change in the encoded protein sequence. Five of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 0.00016 in 246986 control chromosomes in the gnomAD database, including 1 homozygotes. This frequency is not significantly higher than estimated for a pathogenic variant in AGXT causing Primary Hyperoxaluria Type 1 (0.00016 vs 0.0024), allowing no conclusion about variant significance. c.32C>G has been reported in the literature in individuals affected with Primary Hyperoxaluria Type 1 (e.g. Williams_2009, Tammachote_2012, Krishnamurthy_2017, Zhao_2020, Lin_2021, Saha_2023). These data indicate that the variant may be associated with disease. Two functional studies report experimental evidence evaluating an impact on protein function and results in reduced the enzymatic activity (Williams_2009, Tammachote_2012). Six submitters have cited clinical-significance assessments for this variant to ClinVar after 2014. All submitters classified the variant as pathogenic/likely pathogenic. Based on the evidence outlined above, the variant was classified as likely pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.40

BayesDel_addAF

Uncertain

0.056

BayesDel_noAF

Pathogenic

0.27

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.78

Eigen

Uncertain

0.49

Eigen_PC

Uncertain

0.30

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Benign

0.76

M_CAP

Pathogenic

0.54

MetaRNN

Pathogenic

0.78

MetaSVM

Pathogenic

0.84

MutationAssessor

Pathogenic

3.2

PrimateAI

Benign

0.45

PROVEAN

Pathogenic

-8.1

REVEL

Pathogenic

0.70

Sift

Uncertain

0.0010

Sift4G

Pathogenic

0.0010

Polyphen

1.0

Vest4

0.51

MutPred

0.76

Gain of MoRF binding (P = 0.0029);

MVP

0.99

MPC

0.26

ClinPred

0.36

GERP RS

4.4

Varity_R

0.71

gMVP

0.89

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