Table 2. Kinetic parameters for pQR2189 for the reaction between 2 and (S)-7, as well as the conversion of 18a with donor 27 ^a .

	K m (mM)	k cat (s–1)	k cat/Km (s–1 M–1)
2	0.29 ± 0.08	25	87 069
(S)-7	14.8 ± 3.2	58	3942
18a	18.9 ± 3.1	4.5	237
27	10.6 ± 1.6	2.9	275

^aReaction conditions detailed in the experimental.