Table 1.

Kinetic parameters of NDPS1 and PHS1

Enzyme	Substrate	Km, μM	Kcat, s−1	Kcat/Km, s−1 mM−1
NDPS1	IPP	152 ± 68*	0.2 ± 0.07	1.39 ± 0.2
NDPS1	DMAPP	177 ± 42	0.2 ± 0.03	1.04 ± 0.06
PHS1	NPP	9.1 ± 0.8	4.1 ± 0.2	451.5 ± 18.5
PHS1	GPP	2,900 ± 300	9.9 × 10−10 ± 0.38 × 10−10	3.4 × 10−10 ± 0.26 × 10−10

*Standard error.