Is PDE2A p.Gln708Pro (c.2123A>C) pathogenic?

PDE2A p.Gln708Pro (c.2123A>C) is classified Likely pathogenic in PDE2A (ClinVar, Single submitter, 1 submitter; last evaluated 2023-10-24). AlphaMissense: likely pathogenic (0.999); Absent from gnomAD v4.1.

How common is PDE2A p.Gln708Pro (c.2123A>C) in the general population?

PDE2A p.Gln708Pro (c.2123A>C) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about PDE2A p.Gln708Pro (c.2123A>C)?

AlphaMissense predicts likely pathogenic (score 0.999) — an in-silico prediction, not a clinical call.

PDE2A p.Gln708Pro

c.2123A>C · VCV3337443

Likely pathogenic Single submitter

Classification

Likely pathogenic

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.999 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

3/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.999	likely pathogenic ✓ concordant with ClinVar · top 9% in PDE2A
REVEL	0.811	moderately pathogenic-leaning
SaProt	LLR -14.16	damaging
⇒ AlphaMissense, REVEL and SaProt all call this damaging.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 7.9	GERP 1.6, phastCons 1
Regional constraint	o/e 0.47	unconstrained · MANE · 5,892 bp · p 1.6e-30 · regional, not allelic
Overall
CADD	31.0	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

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: PDE2A
Protein: p.Gln708Pro
Coding: c.2123A>C
MANE Select: NM_002599
Type: single nucleotide variant
Location: chr11:72580896 (GRCh38)
Gene constraint: LOEUF 0.564 · pLI 0.02 (gnomAD)
Structure: AlphaFold pLDDT 84.17 · 44 PDB
Residue 708: a UniProt-annotated variant site (in iddpads); the pdease domain; an α-helix

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

Similar variants

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
PDE2A p.Asp59Asn 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-gln708pro (accessed [today's date]).

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