Table 2.

Summary of studies measuring in-vitro electron flux from purified single deca-heme cytochromes or the MtrCAB complex

In-vitro system	Rate constant (s−1)	Electron Acceptor	E vs SHE	Ref.
MtrCAB complex in proteoliposome	8,500±916	γ-FeOOH	−0.103	[13]
	1,317±33	α-Fe2O3	−0.121	[13]
	1,133±266	α-FeOOH	−0.157	[13]
MtrC	(1.98±0.14)×10−3 a	α-FeOOH	n.a.	[29]
OmcA	(3.8±0.6)×10−3 a	α-FeOOH	n.a.	[29]
MtrC in total membrane	2.94±0.54 a	α-FeOOH	n.a.	[29]
OmcA in total membrane	4.84±1.1a	α-FeOOH	n.a.	[29]

^aAssumed Michaelis-Menten constant K_m=0.2 M