Table 1.

Summary of in-vivo studies estimating electron flux per single deca-heme in OM c-Cyt complex

Cell conditions	Electron flux per cell	Deca-heme c-Cyt content per cell a	Rate constant (s−1) per deca-heme c-Cyt	Electron Acceptor	Potential vs SHE	Method	Ref.
Single cell (PV-4)	1.2×106		~300 b	ITO electrode	0.4	In vivo electrochemistry	[2]
Single cell (MR-1)	1.3×106		~330 b	Carbon electrode	n.a.	In vivo electrochemistry	[9]
Chemostat culture (MR-1)	2.6×106			oxygen	+0.81	O2 sensor	[31]
Anaerobic culture (MR-1)		90000~150000		ferric citrate d		Western blot	[29]
			0.25±0.04 c	α-FeOOH	−0.157	Ferrozine assay	[29]
Anaerobic culture (MR-1)		4000		Fe3+, d		UV-vis Absorption	[32]
Single cell (MR-1)		4000~7000 e		Fe2O3 d		Antibody AFM	[11]
Biofilm on electrode (MR-1)	1.8×105	4900 e	~37	ITO electrode	+0.4	In vivo electrochemistry	[10]
Biofilm on electrode (PV-4)	1.2×105	6000 e	~20	ITO electrode	+0.4	In vivo electrochemistry	[12]

^aAssumed the size of a bacteiral cell, a rod-shaped bacterium that is 0.5 by 2.0 μm.

^bAssumed deca-heme c-Cyt content is 4000.

^cAverage of MtrC and OmcA estimated based on the assumption of Michaelis-Menten constant K_m=0.2 M.

^dElectron acceptors used for the growth of cells before quantifying OmcA or MtrC.

^eThe number of deca-heme c-Cyts at bacteira/electrode interface.