NADH oxidation at complex I
Complex I transfers electrons from NADH to ubiquinone and pumps protons.
Oxidative phosphorylation · irreversibleThe reduced form of ubiquinone that transfers electrons to complex III.
Ubiquinol is a small molecule that cells make, use, or change in connected metabolic reactions.
Start here for the main idea. Choose Learn for reactions and connections.
Complex I transfers electrons from NADH to ubiquinone and pumps protons.
Oxidative phosphorylation · irreversibleComplex II transfers succinate-derived electrons to ubiquinone without pumping protons.
Oxidative phosphorylation · irreversibleComplex III passes electrons from ubiquinol to cytochrome c and contributes to proton translocation.
Oxidative phosphorylation · irreversibleDihydroorotate dehydrogenase oxidizes dihydroorotate to orotate and reduces ubiquinone.
Pyrimidine nucleotide synthesis · irreversible