Table 5.

Unigenes related to important biological processes in tea

Classification	Function	No. of unigenes	No. of ESTs
Aluminum response	aluminum-induced protein	2	17
	citrate synthetase	1	1
Caffeine biosynthesis	caffeine synthase	1	9
Catechin biosynthesis	4-coumarate CoA: ligase	2	5
	anthocyanidin reductase	2	6
	chalcone isomerase	4	16
	chalcone synthase	3	20
	cinnamate 4-hydroxylase	2	3
	dihydroflavonol 4-reductase	2	41
	flavonoid 3-hydroxylase	4	5
	flavonol synthase	3	9
	leucoanthocyanidin reductase	1	2
	phenylalanine ammonialyase	2	4
Nitrogen assimilation and amino acid metabolism	2-oxoglutarate malate translocator	2	2
	alanine aminotransferase	3	3
	amino acid channel protein	1	1
	amino acid transporter	4	4
	ammonium transporter	2	2
	aspartate aminotransferase	2	2
	glutamate dehydrogenase	1	2
	glutamate synthetase	1	1
	glutamine dumper	1	1
	glutamine synthetase	3	12
	glycine decarboxylase	3	7
	NAD+-dependent isocitrate dehydrogenase	1	1
	NADP+-dependent isocitrate dehydrogenase	1	2
	nitrate transporter	1	1
	serine hydroxymethyltransferase	1	1
Photoresponse	cryptochrome	1	1
	CIP8 (COP1-interacting protein 8 )	1	1