Is AXIN2 p.Pro494= (c.1482G>T) pathogenic?

AXIN2 p.Pro494= (c.1482G>T) is classified Benign/Likely benign in AXIN2 (ClinVar, Multiple submitters, 4 submitters; last evaluated 2025-06-24). Very rare (popmax 0.00167%, amr); Associated with oligodontia-cancer predisposition syndrome.

What condition is associated with AXIN2 p.Pro494= (c.1482G>T)?

AXIN2 p.Pro494= (c.1482G>T) is associated with oligodontia-cancer predisposition syndrome, hereditary neoplastic syndrome (ClinVar).

How common is AXIN2 p.Pro494= (c.1482G>T) in the general population?

AXIN2 p.Pro494= (c.1482G>T) is very rare (popmax 0.00167%, amr) (gnomAD).

AXIN2 p.Pro494=

c.1482G>T · rs1057522677 · VCV387040

Benign/Likely benign Multiple submitters

Classification

Benign/Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 4 submitters

gnomAD v4.1

Rare

very rare (popmax 0.00167%, amr)

Conditions

oligodontia-cancer predisposition syndrome

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP -7.9	GERP -2.2
Overall
CADD	0.16	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00167% Admixed American · 1/59,868 alleles

Filtering AF 6.8e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 1.9e-05%

Overall 0.00031% 5/1,612,060 alleles · very rare

Ancestry group	Frequency	1 in
Admixed Americangrpmax	0.00167%	59,868
Remaining individualsnot grpmax-eligible	0.0016%	62,416
European (non-Finnish)	0.000254%	393,181

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: AXIN2
Protein: p.Pro494=
Coding: c.1482G>T
MANE Select: NM_004655
dbSNP: rs1057522677
Type: single nucleotide variant
Location: chr17:65537554 (GRCh38)
Gene constraint: LOEUF 0.397 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure: AlphaFold pLDDT 61.71 · 1 PDB
Residue 494: the 'disordered' region

Full AXIN2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

oligodontia-cancer predisposition syndrome — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: hereditary neoplastic syndrome

Similar variants

AXIN2 p.Pro494Arg Uncertain significance ★★ ⚠ same residue
AXIN2 p.Pro494Leu Conflicting classifications of pathogenicity ★ ⚠ same residue
AXIN2 p.Pro494Ser Conflicting classifications of pathogenicity ★ ⚠ same residue
AXIN2 p.Pro494fs Pathogenic ★★ same residue
AXIN2 c.1060-1G>C Likely pathogenic ★★ same condition
AXIN2 c.1200+1G>A Likely pathogenic ★★ same condition
AXIN2 c.1201-1G>C Likely pathogenic ★★ same condition
AXIN2 c.1713-1G>A Likely pathogenic ★★ same condition

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/axin2-p-pro494 (accessed [today's date]).

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