Figure 3. F1F0-ATPase dimer hypothesis.

In normal mitochondria, the F1F0ATPase is thought to self-assembly into a ribbon dimer structure. Bernardi et al61,70 have proposed that PTP (permeability transition pore) channel formation could occur at a monomer-monomer interface following a calcium-dependant and reactive oxygen species–dependent change in conformation. Illustration credit: Ben Smith.