Is BACE2 p.Pro432Ser (c.1294C>T) pathogenic?

BACE2 p.Pro432Ser (c.1294C>T) is classified Uncertain significance in BACE2 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-11-26). AlphaMissense: likely benign (0.0716); Very rare (popmax 0.00223%, eas).

How common is BACE2 p.Pro432Ser (c.1294C>T) in the general population?

BACE2 p.Pro432Ser (c.1294C>T) is very rare (popmax 0.00223%, eas) (gnomAD).

What do computational predictors say about BACE2 p.Pro432Ser (c.1294C>T)?

AlphaMissense predicts likely benign (score 0.0716) — an in-silico prediction, not a clinical call.

BACE2 p.Pro432Ser

c.1294C>T · VCV4645042

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0716 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00223%, eas)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.0716	likely benign
REVEL	0.053	moderately benign-leaning
SaProt	LLR -7.63	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 2.4	GERP -4.2, phastCons 0.99
Regional constraint	o/e 0.82	unconstrained · MANE · 38 kb · p 0.00019 · regional, not allelic
Overall
CADD	15.48	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.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00223% East Asian · 1/44,882 alleles

Overall 0.000274% 4/1,461,378 alleles · very rare

Ancestry group	Frequency	1 in
Remaining individualsnot grpmax-eligible	0.0048%	20,822
East Asiangrpmax	0.00223%	44,882

Remaining individuals shows a higher raw frequency than the grpmax group above it. gnomAD excludes bottlenecked groups — Finnish, Ashkenazi Jewish, Amish and “Remaining individuals” — from grpmax, because founder effects make their frequencies unrepresentative for filtering. The table is sorted by frequency, so an excluded group can sit above the grpmax row.

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: BACE2
Protein: p.Pro432Ser
Coding: c.1294C>T
MANE Select: NM_012105
Type: single nucleotide variant
Location: chr21:41257317 (GRCh38)
Gene constraint: LOEUF 0.574 · pLI 0.73 (gnomAD)
Structure: AlphaFold pLDDT 83.31 · 19 PDB
Residue 432: a disulfide bond; an α-helix

Full BACE2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

BACE2 c.1135-10C>T Benign ★★ same type
BACE2 c.1304-8C>T Benign ★★ same type
BACE2 p.His56Tyr Benign ★★ same type
BACE2 p.Ser88= Likely benign ★★ same type
BACE2 p.Ala200Gly Uncertain significance ★ ⚠ same type
BACE2 p.Ala25Val Uncertain significance ★ ⚠ same type
BACE2 p.Ala297Thr Uncertain significance ★ ⚠ same type
BACE2 p.Ala36Thr 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/bace2-p-pro432ser (accessed [today's date]).

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