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. 2005 Aug 23;390(Pt 2):633–640. doi: 10.1042/BJ20050526

Table 3. Steady-state kinetic parameters of wild-type and mutant StEH1-5H.

Enzyme Substrate kcat (s−1) Km (μM) kcat/Km (mM−1·s−1)
Wild-type R,R-TSO 23±2 10±1 2400±210
Y154F R,R-TSO 0.08±0.008 21±4.8 4±0.5
Y235F R,R-TSO 0.07±0.01 50±13 1.3±0.2
H300A R,R-TSO 0.04±0.008 21±7 2±0.3
H300Q R,R-TSO 0.02±0.007 66±34 0.3±0.05
Wild-type S,S-TSO 2.6±0.1 0.7±0.2 3700±870
Wild-type rac-TSO 3.9±0.2 1.6±0.3 2400±380
Wild-type 4-NSO 3.1±0.5 510±110 6±2