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. 2008 Dec 12;75(3):823–836. doi: 10.1128/AEM.01951-08

TABLE 2.

Apparent kcat values of ToMO and ToMO mutant proteins on benzene, toluene, o-xylene, and naphthalene

ToMO variant or mutation(s) kcat (s−1)a for substrate:
Phenol Benzene Toluene o-Xylene Naphthalene
Wild type 1.0 0.37 0.43 0.26 0.033
I100A 0.019 0.05 0.03 0.025 0.0015
I100V 0.4 0.22 0.27 0.19 0.011
I100M 0.35 0.14 0.18 0.078
I100L 0.76 0.3 0.56 0.3
I100F 0.15 0.13 0.3 0.16
I100W 0 0.018 Very low Very low
F176I 0.25 0.43 0.28 0.21 0.016
F176L 0.32 0.36 0.32 0.23 0.016
A107V 0.07 0.064 0.024 0.032
A107I 0.027 0.0017 0.0009 0.0005
F205L 0.01 0.0015 0.00094 0.0006
E103G 1.0 0.43 0.42 0.42
E103L 0.89 0.29 0.32 0.36
E103 M 0.29 0.26 0.3 0.2
E103V 0.24 0.22 0.22 0.11
E103I 0.21 0.03 0.03 0.01
E103G, I100L 0.53 0.58 0.67 0.75
E103V, I100V 0.30 0.11 0.097 0.029
E103G, M180I 0.50 0.22 0.34 0.2
a

Standard errors for kcat values were <20% for phenol and <25% for benzene, toluene, o-xylene, and naphthalene.