Is PDE2A p.Arg65His (c.194G>A) pathogenic?

PDE2A p.Arg65His (c.194G>A) is classified Uncertain significance in PDE2A (ClinVar, Single submitter, 1 submitter; last evaluated 2025-10-21). AlphaMissense: likely benign (0.0774); Ultra-rare (popmax 0.0273%, eas).

How common is PDE2A p.Arg65His (c.194G>A) in the general population?

PDE2A p.Arg65His (c.194G>A) is ultra-rare (popmax 0.0273%, eas) (gnomAD).

What do computational predictors say about PDE2A p.Arg65His (c.194G>A)?

AlphaMissense predicts likely benign (score 0.0774) — an in-silico prediction, not a clinical call.

PDE2A p.Arg65His

c.194G>A · rs1198044269 · VCV1516652

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0774 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0273%, eas)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.0774	likely benign
REVEL	0.254	benign-leaning
SaProt	LLR -7.77	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 -4.7	GERP -3.8
Regional constraint	o/e 0.88	unconstrained · MANE · 88 kb · p 0.0075 · regional, not allelic
Overall
CADD	5.657	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 0.0273% East Asian · 12/43,886 alleles

Filtering AF 0.0157% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0123%

Overall 0.00133% 19/1,425,048 alleles · ultra-rare

Ancestry group	Frequency	1 in
East Asiangrpmax	0.0273%	3,657
Remaining individualsnot grpmax-eligible	0.00489%	20,447
South Asian	0.00233%	42,875
European (non-Finnish)	0.000172%	580,771

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: PDE2A
Protein: p.Arg65His
Coding: c.194G>A
MANE Select: NM_002599
dbSNP: rs1198044269
Type: single nucleotide variant
Location: chr11:72608702 (GRCh38)
Gene constraint: LOEUF 0.564 · pLI 0.02 (gnomAD)
Structure: AlphaFold pLDDT 84.17 · 44 PDB
Residue 65: the gaf 1 domain

Full PDE2A gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

PDE2A p.Arg65Cys Uncertain significance ★ ⚠ same residue
PDE2A c.1922+4C>T Uncertain significance ★★ same type
PDE2A p.Ala157Val Uncertain significance ★★ ⚠ same type
PDE2A p.Ala205Val Uncertain significance ★★ ⚠ same type
PDE2A p.Ala349Thr Uncertain significance ★★ ⚠ same type
PDE2A p.Arg226Cys Uncertain significance ★★ ⚠ same type
PDE2A p.Arg790Gln Uncertain significance ★★ ⚠ same type
PDE2A p.Asp34Glu 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/pde2a-p-arg65his (accessed [today's date]).

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