Is NF2 p.Ala441Pro (c.1321G>C) pathogenic?

NF2 p.Ala441Pro (c.1321G>C) is classified Uncertain significance in NF2 (ClinVar, Multiple submitters, 2 submitters; last evaluated 2025-07-03). AlphaMissense: likely pathogenic (0.9964); Absent from gnomAD v4.1; Associated with hereditary neoplastic syndrome.

What condition is associated with NF2 p.Ala441Pro (c.1321G>C)?

NF2 p.Ala441Pro (c.1321G>C) is associated with hereditary neoplastic syndrome, NF2-related schwannomatosis (ClinVar).

How common is NF2 p.Ala441Pro (c.1321G>C) in the general population?

NF2 p.Ala441Pro (c.1321G>C) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about NF2 p.Ala441Pro (c.1321G>C)?

AlphaMissense predicts likely pathogenic (score 0.9964) — an in-silico prediction, not a clinical call.

NF2 p.Ala441Pro

c.1321G>C · rs2147084012 · VCV1409476

Uncertain significance Multiple submitters

Classification

Uncertain significance

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

AlphaMissense

likely pathogenic

0.9964 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

2/2 damaging

AlphaMissense, SaProt · REVEL no call

Conditions

hereditary neoplastic syndrome

Computational evidence

Protein change
AlphaMissense	0.9964	likely pathogenic · top 8% in NF2
REVEL	0.581	indeterminate
SaProt	LLR -13.96	damaging
⇒ AlphaMissense and SaProt both call this damaging; REVEL makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 12	GERP 2.3, phastCons 1
Regional constraint	o/e 0.83	unconstrained · MANE · 21 kb · p 0.0072 · regional, not allelic
Overall
CADD	33.0	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean damaging — 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

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: NF2
Protein: p.Ala441Pro
Coding: c.1321G>C
MANE Select: NM_000268
dbSNP: rs2147084012
Type: single nucleotide variant
Location: chr22:29673467 (GRCh38)
Gene constraint: LOEUF 0.187 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure: AlphaFold pLDDT 87.85 · 6 PDB

Full NF2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

hereditary neoplastic syndrome — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: NF2-related schwannomatosis

Similar variants

NF2 p.Ala441Thr Uncertain significance ★★ ⚠ same residue
NF2 p.Ala441= Likely benign ★★ same residue
NF2 p.Ala441Ser Uncertain significance ★ ⚠ same residue
NF2 p.Ala441Val Uncertain significance ★ ⚠ same residue
NF2 c.115-1G>A Likely pathogenic ★★ same condition
NF2 c.1340+1G>T Pathogenic ★★ same condition
NF2 c.1340+2T>G Pathogenic ★★ same condition
NF2 c.1447-1G>A 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/nf2-p-ala441pro (accessed [today's date]).

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