. Author manuscript; available in PMC: 2011 Aug 31.

Published in final edited form as: Biochemistry. 2010 Aug 31;49(34):7242–7254. doi: 10.1021/bi1008485

Table 1.

Electrochemical Midpoint Potentials of SOEs cofactors^a

	HSO	CSO	SDH	P105A HSO	ΔKVATV HSO
pH	7.5	7.5	7.1	7.5	7.5
Heme Cofactor (Fe (III/II))	+ 62 ± 2^c (79)	~+ 69^d (78)	+ 177^d (82)	+ 56 ± 3^c (79)	+ 42 ± 2^c (79)
Molybdenum Cofactor (VI/V)	+ 41 ± 1^b (79)	n.d.	+ 264^d (82)	+ 36 ± 1^b (79)	+ 41 ± 1^b (79)

All potentials are in mV vs SHE.

Calculated from ΔE^o_{Reaction (Heme-Mo)} and the experimental heme potential.

Determined by spectroelectrochemistry, see Figure 9.

Determined by Protein Film Voltammetry

In parentheses are the cited references.