Electron transport chain component

The electron transport chain consists of a series of membrane-embedded protein complexes (notably NADH dehydrogenase, succinate dehydrogenase, cytochrome bc1 complex, and cytochrome c oxidase), along with mobile electron carriers such as ubiquinone and cytochrome c, located in the inner mitochondrial membrane[1][2][4][6]. These components catalyze the transfer of electrons from reduced cofactors (NADH and FADH2) to molecular oxygen, generating a proton gradient that drives ATP synthesis via ATP synthase[2][6]. Each component carries out distinct steps in oxidative phosphorylation and is fundamentally essential for cellular energy metabolism in eukaryotes (and also occurs, with complexity, in prokaryotes)[7]. The umbrella term "Electron transport chain component" does not refer to a single molecule or receptor and should be replaced with the precise molecular target(s) for any structured pharmacological or biomedical analysis.

Other names

ETC componentRespiratory chain componentETC proteinElectron carrier (generic)

Inhibition of electron transfer; Blocking of proton gradient generation; Interference with ATP synthesis