Number of H+ needed to synthesize one ATP

Value 4.333 H+/ATP
Organism Budding yeast Saccharomyces cerevisiae
Reference Rich, PR. The molecular machinery of Keilin's respiratory chain. Biochem Soc Trans. 2003 Dec31(Pt 6):1095-105.PubMed ID14641005
Comments The motor unit of ATP synthase requires 10 H+ to complete a full rotation, which results in the generation of three ATP. For each ATP, the energy of an additional proton is required to transport the substrates and products across the mitochondrial membrane. 13/3 is approximately 4.3 H+/ATP.
Entered by Phil Mongiovi
ID 101771