Is PDE2A p.Pro199Ala (c.595C>G) pathogenic?

PDE2A p.Pro199Ala (c.595C>G) is classified Uncertain significance in PDE2A (ClinVar, Single submitter, 1 submitter; last evaluated 2024-10-19). AlphaMissense: likely benign (0.0651); Absent from gnomAD v4.1; Associated with Inborn genetic diseases.

What condition is associated with PDE2A p.Pro199Ala (c.595C>G)?

PDE2A p.Pro199Ala (c.595C>G) is associated with Inborn genetic diseases (ClinVar).

How common is PDE2A p.Pro199Ala (c.595C>G) in the general population?

PDE2A p.Pro199Ala (c.595C>G) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about PDE2A p.Pro199Ala (c.595C>G)?

AlphaMissense predicts likely benign (score 0.0651) — an in-silico prediction, not a clinical call.

PDE2A p.Pro199Ala

c.595C>G · VCV3416208

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0651 · ACMG-weighted

gnomAD v4.1

Not reported

no allele count reported in gnomAD v4.1 (AN 1,445,004)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.0651	likely benign
REVEL	0.04	moderately benign-leaning
SaProt	LLR -5.74	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 2.5	GERP 0.35, phastCons 0.087
Regional constraint	o/e 0.88	unconstrained · MANE · 88 kb · p 0.0075 · regional, not allelic
Overall
CADD	15.07	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

No allele count reported in gnomAD v4.1 (AN 1,445,004). This is missing data, not an absence: the variant may or may not be present in gnomAD. Rarity (ACMG PM2) and BA1/BS1 cannot be assessed for it.

Variant & gene context

Gene: PDE2A
Protein: p.Pro199Ala
Coding: c.595C>G
MANE Select: NM_002599
Type: single nucleotide variant
Location: chr11:72590535 (GRCh38)
Gene constraint: LOEUF 0.564 · pLI 0.02 (gnomAD)
Structure: AlphaFold pLDDT 84.17 · 44 PDB
Residue 199: the 'disordered' region

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

Disease context

Inborn genetic diseases — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

PDE2A p.Pro199Ser Uncertain significance ★ ⚠ same residue
PDE2A p.Ala157Val Uncertain significance ★★ ⚠ same condition
PDE2A p.Ala205Val Uncertain significance ★★ ⚠ same condition
PDE2A p.Ala349Thr Uncertain significance ★★ ⚠ same condition
PDE2A p.Arg790Gln Uncertain significance ★★ ⚠ same condition
PDE2A p.Asp34Glu Uncertain significance ★★ ⚠ same condition
PDE2A p.Asp59Asn Uncertain significance ★★ ⚠ same condition
PDE2A p.Cys263Gly Uncertain significance ★★ ⚠ same condition

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-pro199ala (accessed [today's date]).

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