TABLE 3.

DAL5 gene family members: sulphur amino acid composition and regulation pattern

ORF	Gene name	Reported substrate	Cys + Met residues (% Cys + Met residues)	Regulation	Reference
YJR152w	DAL5	Allantoate ureidosuccinate	8 + 18 (4.9)	Nitrogen catabolite repression	Rai et al. (1987, 1988)
YLR004c	THI73	Unknown	14 + 15 (5.6)	Thiamine	Llorente and Dujon (2000)
YLL055w	—	Unknown	4 + 12 (3.0)	Sulphur source	Boer et al. (2003)
YGR260w	TNA1	Nicotinic acid	13 + 18 (5.8)	Nicotinic acid	Llorente and Dujon (2000)
YIL166c	—	Unknown	13 + 18 (3.7)	Sulphur source	Boer et al. (2003)
YCR028c	FEN2	Pantothenate	9 + 20 (5.7)	Pantothenate	Stolz and Sauer (1999)
YAL067c	SEO1	Unknown	8 + 11 (3.2)	—	Isnard et al. (1996)
YGR065c	VHT1	Biotin	13 + 11 (4.0)	Biotin	Stolz et al. (1999)