Is AGXT2 p.Glu424Val (c.1271A>T) pathogenic?

AGXT2 p.Glu424Val (c.1271A>T) is classified Uncertain significance in AGXT2 (ClinVar, Single submitter, 1 submitter; last evaluated 2021-10-21). AlphaMissense: likely benign (0.1943); Ultra-rare (popmax 0.0626%, afr).

How common is AGXT2 p.Glu424Val (c.1271A>T) in the general population?

AGXT2 p.Glu424Val (c.1271A>T) is ultra-rare (popmax 0.0626%, afr) (gnomAD).

What do computational predictors say about AGXT2 p.Glu424Val (c.1271A>T)?

AlphaMissense predicts likely benign (score 0.1943) — an in-silico prediction, not a clinical call.

AGXT2 p.Glu424Val

c.1271A>T · rs139344660 · VCV2210446

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1943 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0626%, afr)

Missense predictors

1/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.1943	likely benign
REVEL	0.156	moderately benign-leaning
SaProt	LLR -13.06	damaging
⇒ SaProt calls this damaging; AlphaMissense and REVEL do not.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 7.8	GERP 1.5, phastCons 1
Regional constraint	o/e 1.04	unconstrained · MANE · 49 kb · p 0.33 · regional, not allelic
Overall
CADD	25.7	PHRED · no single calibrated threshold — expert panels disagree

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0626% African / African-American · 47/75,064 alleles

Filtering AF 0.0483% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0432%

Overall 0.00304% 49/1,614,232 alleles · ultra-rare

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.0626%	1,597
Remaining individualsnot grpmax-eligible	0.0032%	31,256

Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.

Variant & gene context

Gene: AGXT2
Protein: p.Glu424Val
Coding: c.1271A>T
MANE Select: NM_031900
dbSNP: rs139344660
Type: single nucleotide variant
Location: chr5:35010067 (GRCh38)
Gene constraint: LOEUF 1.185 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 91.02

Full AGXT2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

AGXT2 c.1188+1G>A Benign/Likely benign ★★ same type
AGXT2 p.Arg133Cys Benign ★★ ⚠ same type
AGXT2 p.Arg242Gln Benign ★★ same type
AGXT2 p.Tyr203= Benign ★★ same type
AGXT2 p.Val116= Likely benign ★★ same type
AGXT2 p.Ala183Val Uncertain significance ★ ⚠ same type
AGXT2 p.Ala306Gly Uncertain significance ★ ⚠ same type
AGXT2 p.Ala359Thr Uncertain significance ★ ⚠ same type

Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →

Cite Sugi Variant

Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/agxt2-p-glu424val (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown