TABLE 1.

Comparison of selected terpene synthase enzyme kinetic parameters

Enzyme	Product	kcat	Km	Hill coefficient	Ref.
		s−1
Malus domestica farnesene synthase	Farnesene	0.0553	10–25 μma		37, 47
M. domestica farnesene synthase	Monoterpenes	0.00028	50 μma		37
Mentha spicata limonene synthase	Limonene	0.024	6.7 μm		41
M. spicata 1,8-cineole synthase	1,8-Cineole	0.053	65 μm		48
P. alba isoprene synthase	Isoprene	0.03	8.7 mm		11
Populus x canescens isoprene synthase	Isoprene	0.26	2.45 mm		49
P. montana isoprene synthase	Isoprene	0.088	7.7 mm	4.1	9
P. sabiniana MBO synthase	MBO	0.015	20.0 mm	1.2	This study
P. sabiniana MBO synthase	Isoprene	0.0004	18.2 mm	1.4	This study

^a This is the concentration used in the assay when the K_m was not reported.