Target intelligence / Profile preview

Heme Oxygenase 2 (HO-2)

Target
HO-2
Molecular classification
Enzyme, Oxidoreductase
01

Overview

Heme oxygenase 2 (HO-2) is an enzyme that catalyzes the oxidative cleavage of heme, a process essential for heme catabolism and cellular homeostasis. HO-2 is a constitutive isoform, generally expressed at steady levels. It is highly abundant in the brain, testis, and endothelial cells, suggesting roles in neuroprotection and gas sensing. It differs from the inducible isoform HO-1. Unique structural elements such as heme regulatory motifs (HRMs) confer additional layers of regulation potentially related to redox status or gas sensing.

Other names
HMOX2
02

Mechanism of action

Catalyzes the degradation of heme into biliverdin, carbon monoxide, and ferrous iron.

03

Biological functions

Heme catabolismCarbon monoxide productionRedox regulationGas sensingNeuroprotection
04

Disease associations

Neurodegenerative diseaseOxidative stress-related diseasesOther (potential involvement in disease-modifying therapies)

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