Target intelligence / Profile preview

Cytochrome P450 26A1

Molecular classification
Enzyme, Cytochrome P450, Monooxygenase, Oxidoreductase
01

Overview

Cytochrome P450 26A1 (CYP26A1) is an endoplasmic reticulum-associated enzyme that primarily metabolizes retinoic acid (RA), an active metabolite of vitamin A. It catalyzes both the 4-hydroxylation and the less common 18-hydroxylation of all-trans-retinoic acid. By regulating RA levels, CYP26A1 plays a crucial role in controlling gene expression during embryonic development as well as in adult tissues. Its activity is critical for normal embryo implantation and its dysregulation is associated with developmental defects and diseases such as embryonal carcinoma and acute promyelocytic leukemia.

Other names
CP26CYP26P450RAIP450RAI1
02

Mechanism of action

Catalyzes the 4-hydroxylation and 18-hydroxylation of all-trans-retinoic acid, regulating its levels.

03

Biological functions

Retinoic acid metabolismRegulation of RA-dependent gene expressionDrug metabolismCholesterol synthesisSteroid synthesisLipid synthesisEmbryonic developmentImmune modulation at maternal-fetal interface
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Disease associations

Embryonal carcinomaAcute promyelocytic leukemiaColorectal cancerNeural tube defectsSpina bifida
05

Safety considerations

Developmental defects (e.g., spina bifida) with loss of functionPotential impact on embryo implantation and maternal-fetal interface

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