Is AHNAK2 p.Pro3811Arg (c.11432C>G) pathogenic?

AHNAK2 p.Pro3811Arg (c.11432C>G) is classified Uncertain significance in AHNAK2 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-10-30). AlphaMissense: likely pathogenic (0.6686); Very rare (popmax 0.000339%, nfe).

How common is AHNAK2 p.Pro3811Arg (c.11432C>G) in the general population?

AHNAK2 p.Pro3811Arg (c.11432C>G) is very rare (popmax 0.000339%, nfe) (gnomAD).

What do computational predictors say about AHNAK2 p.Pro3811Arg (c.11432C>G)?

AlphaMissense predicts likely pathogenic (score 0.6686) — an in-silico prediction, not a clinical call.

AHNAK2 p.Pro3811Arg

c.11432C>G · VCV4639353

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.6686 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.000339%, nfe)

Missense predictors

1/2 damaging

AlphaMissense, REVEL · SaProt no call

Computational evidence

Protein change
AlphaMissense	0.6686	likely pathogenic · top 3% in AHNAK2
REVEL	0.286	benign-leaning
SaProt	—	not scored · why
⇒ AlphaMissense calls this damaging; REVEL does not; SaProt makes no call.
Splicing
SpliceAI	<0.2	no splice effect predicted · four deltas, not one · how we know
Constraint at this position
Conservation	phyloP 2.3	GERP 0.48, phastCons 0.47
Regional constraint	o/e 1.21	unconstrained · MANE · 5,079 bp · p 5.5e-23 · regional, not allelic
Overall
CADD	20.2	PHRED · no single calibrated threshold — expert panels disagree

AlphaMissense carries the ACMG weight for missense; REVEL is an independent agreement signal.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.000339% European (non-Finnish) · 4/1,179,506 alleles

Filtering AF 7.9e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 5.4e-05%

Overall 0.000248% 4/1,612,760 alleles · very rare exomes 4/1,461,480 · genomes 0/151,280 · joint denominator

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: AHNAK2
Protein: p.Pro3811Arg
Coding: c.11432C>G
MANE Select: NM_138420
Type: single nucleotide variant
Location: chr14:104944019 (GRCh38)
Gene constraint: LOEUF 0.917 · pLI <0.01 (gnomAD)

Full AHNAK2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

AHNAK2 p.Glu3598Lys Uncertain significance ★★ ⚠ same type
AHNAK2 p.Gly4376Ser Uncertain significance ★★ ⚠ same type
AHNAK2 p.Lys2479Arg Uncertain significance ★★ ⚠ same type
AHNAK2 p.Lys3309Asn Uncertain significance ★★ ⚠ same type
AHNAK2 p.Val1351Met Uncertain significance ★★ ⚠ same type
AHNAK2 p.Ala1115Val Benign/Likely benign ★★ same type
AHNAK2 p.Ala1323Thr Likely benign ★★ same type
AHNAK2 p.Ala1818Thr Benign/Likely benign ★★ 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/ahnak2-p-pro3811arg (accessed [today's date]).

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