Target intelligence / Profile preview

External NADH Oxidase Type 2 (Nox-2)

Target
Nox-2
Molecular classification
Enzyme, Oxidase, Dehydrogenase
01

Overview

External NADH oxidase type 2 (Nox-2 or NDH-2) is an enzyme that catalyzes the oxidation of NADH by transferring electrons to molecular oxygen or quinones. This process regenerates NAD(+) from NADH, which is essential for cellular redox balance and energy metabolism. It is located on the external face of the mitochondrial inner membrane in eukaryotes and is membrane-associated in prokaryotes. Unlike Nox-1, Nox-2 primarily forms water as a product and is resistant to complex I inhibitors like rotenone, capsaicin and piericidin A. Nox-2 plays a critical role in maintaining the cellular pool of oxidized nicotinamide adenine dinucleotide (NAD(+)).

Other names
Type II NAD(P)H dehydrogenaseNDH-2
02

Mechanism of action

N/A

03

Biological functions

Redox homeostasisNADH oxidationNAD(+) regenerationAerobic metabolism
04

Interacting drugs

Rotenone

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