H+ pumped per O2 generated in noncyclic photosynthetic electron flow

Value 12 Protons
Organism Generic
Reference Allen, J. F. (2002). Photosynthesis of ATP—Electrons, Proton Pumps, Rotors, and Poise. Cell 110, 273–276 p.275 left columnPubMed ID12176312
Method Based on the known biochemistry of the Z-scheme in chloroplasts.
Comments "In noncyclic electron transport in chloroplasts, four electrons make one oxygen molecule and two NADPH molecules, and the same four electrons pump a total of 12 protons into the thylakoid lumen from the stroma (Figure 2)."
Entered by Avi Flamholz
ID 111100