Oxidative phosphorylation pathway protein (OXPHOS protein)

Oxidative phosphorylation pathway proteins are a group of enzymes and associated molecules that form the mitochondrial electron transport chain. These proteins are responsible for transferring electrons from NADH and FADH₂ to molecular oxygen through a series of redox reactions across four main multi-subunit complexes (Complexes I-IV) embedded in the inner mitochondrial membrane. This process generates a proton gradient used by ATP synthase (Complex V) to produce adenosine triphosphate (ATP), the primary energy currency in cells. The pathway is essential for aerobic metabolism in eukaryotes and is also present with variations in prokaryotes. Dysfunction or altered regulation of these proteins is implicated in various diseases, including cancer—where they may serve as therapeutic targets—and neurodegenerative disorders due to their role in energy metabolism and reactive oxygen species generation[1][2][4][8]. Note on correctness: The term "Oxidative phosphorylation pathway proteins" refers collectively to many different individual proteins rather than a single molecular target or receptor. For structured data purposes, it would be more accurate to specify an individual component such as "NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 9" or "Cytochrome c oxidase subunit 4 isoform 1." As written, this entry describes a functional class rather than one canonical molecule; thus **is_incorrect** is set to true because it does not refer specifically enough for most drug discovery databases or structured target lists[1].

Other names

Electron transport chain proteinMitochondrial respiratory chain complex proteinOXPHOS componentRespiratory chain subunit

Inhibition of electron transport chain complexes to disrupt ATP production and induce cell death in target cells