Table III. Kinetic constants of VvGT7a, VvGT7b, and VvGT7c determined for the substrates nerol, citronellol, geraniol, and UDP-Glc.

Allele	Substrate	Km	kcat	kcat/Km
		mm	10−3 s−1	10−3 s−1 mm−1
VvGT7a	Nerol	0.417 ± 0.004	0.4	1.0
	Citronellol	0.433 ± 0.062	0.2	0.5
	Geraniol	0.464 ± 0.056	0.1	0.2
	UDP-Glc	0.052 ± 0.009	0.3	5.8
VvGT7b	Nerol	0.204 ± 0.027	2.0	9.8
	Citronellol	0.306 ± 0.075	0.2	0.7
	Geraniol	0.396 ± 0.012	0.2	0.5
	UDP-Glc	0.048 ± 0.001	1.2	25.0
VvGT7c	Nerol	0.211 ± 0.016	1.4	6.6
	Citronellol	0.445 ± 0.021	0.3	0.7
	Geraniol	0.321 ± 0.002	0.3	0.9
	UDP-Glc	0.056 ± 0.003	1.4	25.0