substrate-level phosphorylation

(redirected from Substrate level phosphorylation)

sub·strate-·lev·el phos·phor·y·la·tion

the synthesis of ATP (or other NTP) not involving electron transport coupled with oxidative phosphorylation or with photophosphorylation.

substrate-level phosphorylation

the direct transfer of a phosphate group of ADP, thus forming ATP, without the presence of oxygen. The phosphorylation is thus independent of the ELECTRON TRANSPORT SYSTEM used in oxidative phosphorylationSee ANAEROBIC RESPIRATION, GLYCOLYSIS.
References in periodicals archive ?
The greater the uncoupling, the greater will be the need to produce energy through substrate level phosphorylation (aerobic glucose fermentation).
ATP synthesis through mitochondrial fermentation involving substrate level phosphorylation could give the false impression that tumor mitochondria are producing ATP through respiration (Seyfried et al, 2010).
So that Equation (8) may be validated, the ATP amount, obtained from its application, was compared with the ATP amount calculated individually from the sum of acetyl-CoA, NAHD and FADH2 molecules number, and substrate level phosphorylation, generated in the oxidation of fatty acids with specific numbers of carbon atoms in glyoxysomes (Table 2).