Is CEBPA p.Ala135= (c.405C>T) pathogenic?

CEBPA p.Ala135= (c.405C>T) is classified Likely benign in CEBPA (ClinVar, Single submitter, 1 submitter; last evaluated 2022-07-18). Ultra-rare (popmax 0.0344%, mid); Associated with acute myeloid leukemia.

What condition is associated with CEBPA p.Ala135= (c.405C>T)?

CEBPA p.Ala135= (c.405C>T) is associated with acute myeloid leukemia (ClinVar).

How common is CEBPA p.Ala135= (c.405C>T) in the general population?

CEBPA p.Ala135= (c.405C>T) is ultra-rare (popmax 0.0344%, mid) (gnomAD).

CEBPA p.Ala135=

c.405C>T · rs2513331587 · VCV1917087

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

ultra-rare (popmax 0.0344%, mid)

Conditions

acute myeloid leukemia

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 0.42	GERP -2.1, phastCons 0.83
Overall
CADD	12.03	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0344% Middle Eastern · 1/2,906 alleles

Overall 0.000193% 2/1,033,604 alleles · ultra-rare

Ancestry group	Frequency	1 in
Middle Easterngrpmax	0.0344%	2,906
European (non-Finnish)	0.000105%	954,709

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: CEBPA
Protein: p.Ala135=
Coding: c.405C>T
MANE Select: NM_004364
dbSNP: rs2513331587
Type: single nucleotide variant
Location: chr19:33302010 (GRCh38)
Gene constraint: LOEUF 1.372 · pLI 0.26 · ClinGen HI 0/3 (gnomAD)
Structure: AlphaFold pLDDT 63.67 · 2 PDB
Residue 135: the 'required to induce adipocyte differentiation' region

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

Disease context

acute myeloid leukemia — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

CEBPA p.Ala135Pro Uncertain significance ★ ⚠ same residue
CEBPA p.Ala135Val Uncertain significance ★ ⚠ same residue
CEBPA p.Glu59Ter Pathogenic ★★ same condition
CEBPA p.Ala113Ser Uncertain significance ★★ ⚠ same condition
CEBPA p.Ala118Thr Uncertain significance ★★ ⚠ same condition
CEBPA p.Ala118Val Uncertain significance ★★ ⚠ same condition
CEBPA p.Ala124Val Uncertain significance ★★ ⚠ same condition
CEBPA p.Ala154Val 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/cebpa-p-ala135 (accessed [today's date]).

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