Table 1.

Electrophysiological properties of the PTP and ATP synthase

Preparation	Conductance	Selectivity	Rectification	Reference
PTP
I MM, patch clamping, induced by cuprizone	~100pS	Slight anion selectivity	Not determined	Sorgato et al. (1987)
Mitoplast. patch clamping	Multiple conductances (30 pS to 1.3 nS)	Slight anion selectivity	Positive rectification at positive potentials and negative rectification at negative potentials	Petronilli et al. (1989)
Mitoplast, patch clamping (mitochondrial muhiconductance channel)	Multiple conductances (10 pS to 1 nS)	Slight cation selectivity	Variable rectification at positive and negative potentials	Kinnally et al. (1989)
ATP synthase
ATP synthase dimers in lipid bilayers	Peak conductance of 1-1.3 nS with multiple subconductance states	Not determined	Not determined	Giorgio et al. (2013)
ATP synthase monomers in liposomes, patch clamping	Multiple conductances (-800 pS)	Not determined	Not determined	Alavian et al. (2014)
Purified ATP synthase c-subunits in lipid bilayers	Multiple conductances (15 pS to 2 nS)	Relative cation selectivity	Not tested	Azarashvili et al. (2014)
Purified ATP synthase c-subunits in liposomes, patch clamping	Multiple conductances (lOOpS to 2 nS)	Slight cation selectivity	Slightly negative rectification	Alavian et al. (2014)