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. Author manuscript; available in PMC: 2014 Jun 24.
Published in final edited form as: Free Radic Res. 2014 Feb 24;48(4):487–502. doi: 10.3109/10715762.2014.886775

Table III.

Cleland and Dalziel coefficients calculated from the estimated rate constants for different experimental datasets.

Parameter Flohé et al. [26]
(H2O2)
pH = 6.7 (7.7)*
Günzler et al. [34]
Forstrom et al. [36]
(EthOOH)
pH = 6.7 (7.7)
(CumOOH)
pH = 6.7 (7.7)
(tBuOOH)
pH = 6.7 (7.7)
(CumOOH)
pH = 7.2 (7.7)
(LinOOH)
pH = 7.2 (7.7)
Cleland coefficients
Vf (s−1)a 7.5 × 104 7.5 × 104 7.5 × 104 7.5 × 104 7.5 × 104 7.5 × 104
KmA3 (M)a 1.1 × 10−3 2 × 10−3 4.9 × 10−3 1.2 × 10−2 1.3 × 10−2 3.5 × 10−3
KmB2 (M) 0.15 (0.017)* 0.17 (0.018)* 0.17 (0.018)* 0.17 (0.018)* 0.49 (0.16)* 0.45 (0.15)*
Dalziel coefficients
 Φ0 (s)a 1.3 × 10−5 1.32 × 10−5 1.32 × 10−5 1.32 × 10−5 1.32 × 10−5 1.32 × 10−5
 Φ1 (M.s)a 1.4 × 10−8 2.6 × 10−8 6.5 × 10−8 1.6 × 10−7 1.8 × 10−7 4.7 × 10−8
 Φ2 (M. s) 2.0 × 10−6 (2.2 × 10−7)* 2.2 × 10−6 (2.4 × 10−7)* 2.3 × 10−6 (2.4 × 10−7)* 2.2 × 10−6 (2.4 × 10−7)* 6.5 × 10−6 (2.1 × 10−6)* 6 × 10−6 (2 × 10−6)*

The Km values reported here are the Cleland coefficients as defined in Equation (4) and they may not be equivalent to the experimentally derived apparent Michaelis–Menten constants.

*

Values in the parentheses represent for pH 7.7.

a

Independent of pH. The values of the Cleland and Dalziel coefficients not mentioned in the table are estimated to be zero.