TABLE 2.

sld complementation groups

Mutation	Allelic mutation	Mutation allele(s)	Essentiala
sld1	dpb3	-1	−
sld2		-1, -2, -3, -4, -5	+
sld3		-1	+
sld4	cdc45	-1	+
sld5		-1	+
sld6		-1	NDb

^a+ and −, essential or nonessential for the cell growth, respectively. 

^bND, not determined.