Lancaster 2002 Biochim Biophys Acta
From Bioblast
Lancaster CR (2002) Succinate:quinone oxidoreductases: an overview. Biochim Biophys Acta 1553:1-6. https://doi.org/10.1016/s0005-2728(01)00240-7 |
Lancaster CR (2002) Biochim Biophys Acta
Abstract: Succinate:quinone oxidoreductases (SQORs, EC 1.3.5.1) are enzymes that couple the two-electron oxidation of succinate to fumarate (reaction 1) to the two-electron reduction of quinone to quinol (reaction 2):
succinate β fumarate + 2H+ + 2e- (1)
quinone + 2H+ + 2e- β quinol (2)
β’ Bioblast editor: Gnaiger E
- The 2H+ in reaction 1,
- succinate β fumarate + 2H+ + 2e- (1)
- has an entirely different meaning as the H+ in NADH + H+ shown in Figure 1a. In this figure, fumarate + 2H+ shown besides NADH + H+ is ambiguous [1].
- 1. Gnaiger E (2023) Complex II ambiguities β FADH2 in the electron transfer system. MitoFit Preprints 2023.3. https://doi.org/10.26124/mitofit:2023-0003.v4
Labels:
Enzyme: Complex II;succinate dehydrogenase