Is AOC2 p.Arg155His (c.464G>A) pathogenic?

AOC2 p.Arg155His (c.464G>A) is classified Uncertain significance in AOC2 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-01-16). AlphaMissense: likely benign (0.0694); Very rare (popmax 0.00534%, afr).

How common is AOC2 p.Arg155His (c.464G>A) in the general population?

AOC2 p.Arg155His (c.464G>A) is very rare (popmax 0.00534%, afr) (gnomAD).

What do computational predictors say about AOC2 p.Arg155His (c.464G>A)?

AlphaMissense predicts likely benign (score 0.0694) — an in-silico prediction, not a clinical call.

AOC2 p.Arg155His

c.464G>A · rs766689821 · VCV2336147

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0694 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00534%, afr)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.0694	likely benign
REVEL	0.033	moderately benign-leaning
SaProt	LLR -7.68	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 1.4	GERP -3.8, phastCons 0.83
Regional constraint	o/e 1.05	unconstrained · MANE · 5,718 bp · p 0.1 · regional, not allelic
Overall
CADD	13.55	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 0.00534% African / African-American · 4/74,942 alleles

Filtering AF 0.00175% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00116%

Overall 0.00198% 32/1,613,716 alleles · very rare

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.00534%	18,736
Admixed American	0.005%	20,005
European (non-Finnish)	0.00203%	49,168
Remaining individualsnot grpmax-eligible	0.0016%	62,488

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: AOC2
Protein: p.Arg155His
Coding: c.464G>A
MANE Select: NM_009590
dbSNP: rs766689821
Type: single nucleotide variant
Location: chr17:42845090 (GRCh38)
Gene constraint: LOEUF 1.292 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 94.10

Full AOC2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

AOC2 p.Arg155Ser Uncertain significance ★ ⚠ same residue
AOC2 p.Arg597= Benign ★★ same type
AOC2 p.Pro141Leu Benign ★★ same type
AOC2 p.Ala104Thr Uncertain significance ★ ⚠ same type
AOC2 p.Ala218Thr Uncertain significance ★ ⚠ same type
AOC2 p.Ala415Pro Uncertain significance ★ ⚠ same type
AOC2 p.Ala450Val Uncertain significance ★ ⚠ same type
AOC2 p.Ala519Gly 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/aoc2-p-arg155his (accessed [today's date]).

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