TABLE 1.

Yeast strains

Yeast strain	Genotype	Reference or source
K. lactis
PM6-7A	MATauraA1-1 adeT-600	12
2359/152	MATametA1-1	H. Fukuhara, Institut Curie
MW270-7B	MATauraA1-1 leu2 metA1-1	M. Wésolowski-Louvel, University of Lyon 1
MW270-7B/Δklhap1	MW270-7B Klhap1::KanMX	This work
S. cerevisiae
334-ΔHAP1	MATapep4-3 prb1-1122 leu2-3,2-112 ura3-1 gal1 hap1::LEU2	This work
W303-1A	MATaade2-1 leu2-3 ura3-1 trp1-1 his3-11,3-15 can1-100	R. Rothstein, Columbia University
W303-ΔHEM1	W303-1A hem1::LEU2	This work
W303-ΔHAP1	W303-1A hap1::ADE2	This work
W303-ΔHEM1-ΔHAP1	W303-1A hem1::LEU2 hap1::ADE2	This work
W303-ΔHAP1(K)	W303-1A hap1::KanMX	This work