Is AHNAK2 p.Pro1631Arg (c.4892C>G) pathogenic?

AHNAK2 p.Pro1631Arg (c.4892C>G) is classified Conflicting classifications of pathogenicity in AHNAK2 (ClinVar, Conflicting submitters, 3 submitters; last evaluated 2026-04-01). AlphaMissense: likely benign (0.1274); Rare (popmax 0.116%, mid).

How common is AHNAK2 p.Pro1631Arg (c.4892C>G) in the general population?

AHNAK2 p.Pro1631Arg (c.4892C>G) is rare (popmax 0.116%, mid) (gnomAD).

What do computational predictors say about AHNAK2 p.Pro1631Arg (c.4892C>G)?

AlphaMissense predicts likely benign (score 0.1274) — an in-silico prediction, not a clinical call.

AHNAK2 p.Pro1631Arg

c.4892C>G · rs748013805 · VCV2644815

Conflicting classifications of pathogenicity Conflicting submitters

Classification

Conflicting classifications of pathogenicity

ClinVar

Review

Conflicting submitters ★☆☆☆

ClinVar · 3 submitters

AlphaMissense

likely benign

0.1274 · ACMG-weighted

gnomAD v4.1

Rare

rare (popmax 0.116%, mid)

Missense predictors

0/2 damaging

AlphaMissense, REVEL

Computational evidence

Protein change
AlphaMissense	0.1274	likely benign
REVEL	0.076	moderately benign-leaning
⇒ AlphaMissense and REVEL both call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP -2.7	GERP -1.2
Regional constraint	o/e 1.23	unconstrained · MANE · 32 kb · p 4.7e-50 · regional, not allelic
Overall
CADD	14.55	PHRED · no single calibrated threshold — expert panels disagree

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

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.116% Middle Eastern · 7/6,032 alleles

Filtering AF 0.0544% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0385%

Overall 0.00548% 87/1,586,872 alleles · rare

Ancestry group	Frequency	1 in
Middle Easterngrpmax	0.116%	862
Remaining individualsnot grpmax-eligible	0.0146%	6,837
African / African-American	0.00686%	14,577
South Asian	0.00558%	17,926
European (non-Finnish)	0.00525%	19,065

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.Pro1631Arg
Coding: c.4892C>G
MANE Select: NM_138420
dbSNP: rs748013805
Type: single nucleotide variant
Location: chr14:104950559 (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.Pro1631Leu Uncertain significance ★ ⚠ same residue
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

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-pro1631arg (accessed [today's date]).

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