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GeneBe

5-35010055-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_031900.4(AGXT2):c.1283T>C(p.Val428Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000108 in 1,614,144 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

AGXT2
NM_031900.4 missense

Scores

3
11
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.72
Variant links:
Genes affected
AGXT2 (HGNC:14412): (alanine--glyoxylate aminotransferase 2) The protein encoded by this gene is a class III pyridoxal-phosphate-dependent mitochondrial aminotransferase. It catalyzes the conversion of glyoxylate to glycine using L-alanine as the amino donor. It is an important regulator of methylarginines and is involved in the control of blood pressure in kidney. Polymorphisms in this gene affect methylarginine and beta-aminoisobutyrate metabolism, and are associated with carotid atherosclerosis. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2015]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
AGXT2NM_031900.4 linkuse as main transcriptc.1283T>C p.Val428Ala missense_variant 12/14 ENST00000231420.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
AGXT2ENST00000231420.11 linkuse as main transcriptc.1283T>C p.Val428Ala missense_variant 12/141 NM_031900.4 P1Q9BYV1-1
AGXT2ENST00000510428.1 linkuse as main transcriptc.1058T>C p.Val353Ala missense_variant 10/131 Q9BYV1-2
AGXT2ENST00000618015.4 linkuse as main transcriptc.1058T>C p.Val353Ala missense_variant 10/125 Q9BYV1-2
AGXT2ENST00000512135.5 linkuse as main transcriptn.953T>C non_coding_transcript_exon_variant 4/62

Frequencies

GnomAD3 genomes
AF:
0.0000985
AC:
15
AN:
152258
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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:
0.000162
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000143
AC:
36
AN:
251380
Hom.:
0
AF XY:
0.000125
AC XY:
17
AN XY:
135862
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.000434
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000150
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.000109
AC:
159
AN:
1461886
Hom.:
0
Cov.:
35
AF XY:
0.000110
AC XY:
80
AN XY:
727242
show subpopulations
Gnomad4 AFR exome
AF:
0.0000597
Gnomad4 AMR exome
AF:
0.000447
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000464
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000114
Gnomad4 OTH exome
AF:
0.0000993
GnomAD4 genome
AF:
0.0000985
AC:
15
AN:
152258
Hom.:
0
Cov.:
33
AF XY:
0.0000672
AC XY:
5
AN XY:
74390
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000196
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000162
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.000193
Hom.:
0
Bravo
AF:
0.000121
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.000123
AC:
15
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

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 submitterclinical testingAmbry GeneticsFeb 23, 2023The c.1283T>C (p.V428A) alteration is located in exon 12 (coding exon 12) of the AGXT2 gene. This alteration results from a T to C substitution at nucleotide position 1283, causing the valine (V) at amino acid position 428 to be replaced by an alanine (A). 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
0.30
BayesDel_addAF
Benign
-0.056
T
BayesDel_noAF
Uncertain
-0.010
Cadd
Uncertain
25
Dann
Uncertain
1.0
DEOGEN2
Uncertain
0.49
T;.;.
Eigen
Uncertain
0.67
Eigen_PC
Uncertain
0.64
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.83
T;D;.
M_CAP
Uncertain
0.17
D
MetaRNN
Uncertain
0.70
D;D;D
MetaSVM
Uncertain
0.75
D
MutationAssessor
Uncertain
2.5
M;.;.
MutationTaster
Benign
0.99
D
PrimateAI
Benign
0.35
T
PROVEAN
Uncertain
-3.9
D;.;D
REVEL
Pathogenic
0.69
Sift
Uncertain
0.0010
D;.;D
Sift4G
Pathogenic
0.0010
D;D;D
Polyphen
0.93
P;.;.
Vest4
0.60
MVP
0.84
MPC
0.36
ClinPred
0.25
T
GERP RS
5.7
Varity_R
0.68
gMVP
0.90

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.

Other links and lift over

dbSNP: rs151278208; hg19: chr5-35010160; API