Is PEX12 p.Ala11= (c.33T>C) pathogenic?

PEX12 p.Ala11= (c.33T>C) is classified Likely benign in PEX12 (ClinVar, Single submitter, 1 submitter; last evaluated 2022-04-01). Absent from gnomAD v4.1; Associated with peroxisome biogenesis disorder 3A (Zellweger).

What condition is associated with PEX12 p.Ala11= (c.33T>C)?

PEX12 p.Ala11= (c.33T>C) is associated with peroxisome biogenesis disorder 3A (Zellweger) (ClinVar).

How common is PEX12 p.Ala11= (c.33T>C) in the general population?

PEX12 p.Ala11= (c.33T>C) is absent from gnomAD v4.1 (gnomAD).

PEX12 p.Ala11=

c.33T>C · rs2509171596 · VCV2120124

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Absent

absent from gnomAD v4.1

Conditions

peroxisome biogenesis disorder 3A (Zellweger)

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 2.8	phastCons 1
Overall
CADD	12.58	PHRED · no single calibrated threshold — expert panels disagree

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: PEX12
Protein: p.Ala11=
Coding: c.33T>C
MANE Select: NM_000286
dbSNP: rs2509171596
Type: single nucleotide variant
Location: chr17:35577989 (GRCh38)
Gene constraint: LOEUF 1.218 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 81.58

Full PEX12 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

peroxisome biogenesis disorder 3A (Zellweger) — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

PEX12 p.Ala11fs Pathogenic ★ same residue
PEX12 c.126+1G>T Pathogenic/Likely pathogenic ★★ same condition
PEX12 c.680+1G>A Pathogenic/Likely pathogenic ★★ same condition
PEX12 p.Arg154Ter Pathogenic/Likely pathogenic ★★ same condition
PEX12 p.Arg180Ter Pathogenic ★★ same condition
PEX12 p.Arg202Ter Pathogenic/Likely pathogenic ★★ same condition
PEX12 p.Gln111Ter Pathogenic/Likely pathogenic ★★ same condition
PEX12 p.Gln112Ter Pathogenic/Likely pathogenic ★★ 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/pex12-p-ala11 (accessed [today's date]).

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