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. 2019 Aug 9;19:59. doi: 10.1186/s12896-019-0553-3

Table 2.

Kinetic parameters of wild-type, mutated and combined mutations Ph-HepI

Enzyme Km (mM) kcat (s− 1) kcat/Km (s− 1 M− 1 × 10− 3)
Wild type 0.78 ± 0.05 19.31 ± 0.17 24.76
S169D 0.25 ± 0.07 23.19 ± 0.09 92.76
A259D 0.33 ± 0.09 21.56 ± 0.15 65.33
S169D/A259D 0.21 ± 0.06 26.32 ± 0.03 125.33