APC2 p.Pro1123=
c.3369C>G · rs758399348 · VCV1895628
Likely benign
Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
ultra-rare (popmax 0.0441%, eas)
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 -12 | GERP -3.1 |
| Overall | ||
| CADD | 0.057 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0441%
East Asian · 18/40,790 alleles
Filtering AF
0.0284%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0235%
Overall
0.00339%
51/1,503,808 alleles · ultra-rare
exomes 45/1,351,640 · genomes 6/152,168 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| East Asiangrpmax | 0.0441% | 2,266 |
| Remaining individualsnot grpmax-eligible | 0.00514% | 19,465 |
| European (non-Finnish) | 0.00266% | 37,561 |
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
- APC2
- Protein
- p.Pro1123=
- Coding
- c.3369C>G
- MANE Select
- NM_005883
- dbSNP
- rs758399348
- Type
- single nucleotide variant
- Location
- chr19:1466670 (GRCh38)
- Gene constraint
- LOEUF 0.961 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 48.87
- Residue 1123
- the '5 x 20 aa approximate repeat of f-x-v-e-x-t-p-x-c-f-s-r-x-s-s-l-s-s-l-s' region; the 'interaction with ctnnb1' region; the 'disordered' region; a UniProt-annotated variant site (in cdcbm10)
Similar variants
- APC2 p.Pro1123Leu Uncertain significance ★ same residue
- APC2 p.Ala1059Glu Uncertain significance ★★ ⚠ same type
- APC2 p.Ala1103Thr Uncertain significance ★★ ⚠ same type
- APC2 p.Ala1116Val Uncertain significance ★★ ⚠ same type
- APC2 p.Ala126Ser Uncertain significance ★★ ⚠ same type
- APC2 p.Ala1311Thr Uncertain significance ★★ ⚠ same type
- APC2 p.Ala1359Val Uncertain significance ★★ ⚠ same type
- APC2 p.Ala1438Thr 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/apc2-p-pro1123 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown