Chance 1961 J Biol Chem-III
From Bioblast
Chance B, Hollunger G (1961) The interaction of energy and electron transfer reactions in mitochondria III. Substrate requirements for pyridine nucleotide reduction in mitochondria. J Biol Chem 236:1555-61. |
Chance B, Hollunger G (1961) J Biol Chem
Abstract:
- A specific succinate requirement for energy-linked reduction of mitochondrial pyridine nucleotide is demonstrated in pigeon heart and guinea pig kidney mitochondria.
- The succinate used in this reduction can be generated in the oxidation of malate plus glutamate or of Ξ±-ketoglutarate.
- The role of succinate is identified by the specific inhibitory responses of the reaction to malonate, phosphate, and fumarate.
- At least two kinds of mitochondrial pyridine nucleotide are shown to be reducible in State 4: (a) about one-third in the absence of added succinate in a malonate-insensitive reaction in the presence of a substrate such as malate plus glutamate and (b) about two-thirds in the presence of added succinate in a malonate-sensitive, energy-linked reaction. These two kinds of pyridine nucleotide may be considered to be compartmented.
β’ Keywords: Pyridine nucleotide, Succinate
Labels:
Organism: Guinea pig
Tissue;cell: Heart, Kidney
Preparation: Isolated mitochondria
Enzyme: Complex II;succinate dehydrogenase
Regulation: Substrate;glucose;TCA cycle"Substrate;glucose;TCA cycle" is not in the list (Aerobic glycolysis, ADP, ATP, ATP production, AMP, Calcium, Coupling efficiency;uncoupling, Cyt c, Flux control, Inhibitor, ...) of allowed values for the "Respiration and regulation" property.
Coupling state: OXPHOS
Made history