Is CPEB2 p.Pro309Leu (c.926C>T) pathogenic?

CPEB2 p.Pro309Leu (c.926C>T) is classified Uncertain significance in CPEB2 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-01-24). Absent from gnomAD v4.1.

How common is CPEB2 p.Pro309Leu (c.926C>T) in the general population?

CPEB2 p.Pro309Leu (c.926C>T) is absent from gnomAD v4.1 (gnomAD).

CPEB2 p.Pro309Leu

c.926C>T · VCV3835859

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Not reported

no allele count reported in gnomAD v4.1 (AN 1,476,888)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
REVEL	0.092	moderately benign-leaning
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 3	GERP 0.57, phastCons 1
Regional constraint	o/e 1.34	unconstrained · MANE · 50 kb · p 8.8e-28 · regional, not allelic
Overall
CADD	22.3	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

No allele count reported in gnomAD v4.1 (AN 1,476,888). 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: CPEB2
Protein: p.Pro309Leu
Coding: c.926C>T
MANE Select: NM_001177382
Type: single nucleotide variant
Location: chr4:15003599 (GRCh38)
Gene constraint: LOEUF 1.328 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 61.86

Full CPEB2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

CPEB2 p.Ala113Val Uncertain significance ★ same type
CPEB2 p.Ala27Val Uncertain significance ★ same type
CPEB2 p.Ala287Ser Uncertain significance ★ same type
CPEB2 p.Ala288Val Uncertain significance ★ same type
CPEB2 p.Ala494Ser Uncertain significance ★ same type
CPEB2 p.Ala517Thr Uncertain significance ★ same type
CPEB2 p.Ala540Val Uncertain significance ★ same type
CPEB2 p.Ala541Thr 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/cpeb2-p-pro309leu (accessed [today's date]).

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