Is APLP2 p.Ile751Val (c.2251A>G) pathogenic?

APLP2 p.Ile751Val (c.2251A>G) is classified Uncertain significance in APLP2 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-06-16). AlphaMissense: likely benign (0.0897); Ultra-rare (popmax 0.0933%, amr).

How common is APLP2 p.Ile751Val (c.2251A>G) in the general population?

APLP2 p.Ile751Val (c.2251A>G) is ultra-rare (popmax 0.0933%, amr) (gnomAD).

What do computational predictors say about APLP2 p.Ile751Val (c.2251A>G)?

AlphaMissense predicts likely benign (score 0.0897) — an in-silico prediction, not a clinical call.

APLP2 p.Ile751Val

c.2251A>G · rs772107391 · VCV2362169

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0897 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0933%, amr)

Missense predictors

0/2 damaging

AlphaMissense, SaProt · REVEL no call

Computational evidence

Protein change
AlphaMissense	0.0897	likely benign
REVEL	0.363	indeterminate
SaProt	LLR -3.76	tolerated
⇒ AlphaMissense and SaProt both call this tolerated; REVEL makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 8.1	GERP 0.67, phastCons 1
Regional constraint	o/e 1.00	unconstrained · MANE · 73 kb · p 0.93 · regional, not allelic
Overall
CADD	21.3	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — a triage signal, not a reclassification

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

⚠ Isoform check: AlphaMissense numbered on a different transcript (AM I763V vs ClinVar I751V) — verify the residue.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0933% Admixed American · 56/60,004 alleles

Filtering AF 0.0737% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0667%

Overall 0.00359% 58/1,613,634 alleles · ultra-rare

Ancestry group	Frequency	1 in
Admixed Americangrpmax	0.0933%	1,072
Remaining individualsnot grpmax-eligible	0.0032%	31,235

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: APLP2
Protein: p.Ile751Val
Coding: c.2251A>G
MANE Select: NM_001142276
dbSNP: rs772107391
Type: single nucleotide variant
Location: chr11:130143443 (GRCh38)
Gene constraint: LOEUF 0.723 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 68.87 · 3 PDB
Residue 751: the 'interaction with dab2' region

Full APLP2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

APLP2 p.Val336Leu Uncertain significance ★★ ⚠ same type
APLP2 c.1837+1543A>G Uncertain significance ★ ⚠ same type
APLP2 c.1837+1550C>T Uncertain significance ★ ⚠ same type
APLP2 c.1837+1564C>A Uncertain significance ★ ⚠ same type
APLP2 c.1837+1564C>T Uncertain significance ★ ⚠ same type
APLP2 c.1837+1567A>G Uncertain significance ★ ⚠ same type
APLP2 c.1837+1571A>G Uncertain significance ★ ⚠ same type
APLP2 p.Ala244Thr 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/aplp2-p-ile751val (accessed [today's date]).

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