TABLE 1.

Yeast strains

Strain	Genotype (phenotype)	Source or reference
W303aLEU2+	MATα can1 ade2 his3 LEU2+ trp1 ura3	S. Lindquist
Δhsp104 LEU2	MATα can1 ade2 his3 leu2 trp1 ura3 hsp104::LEU2+	S. Lindquist
224A-12D	MATα his4 leu2 ura3 (trehalose deficient)	C. De Virgilio
CWG12	MATα ade2 his3 (and/or his4) leu2 ura3 hsp104::LEU2+ (trehalose deficient)	7
CWG13	MATα ade2 his3 (and/or his4) leu2 ura3	7
CWG14	MATα ade2 his3 (and/or his4) leu2 ura3 (trehalose deficient)	7
CWG15	MATα ade2 his3 (and/or his4) leu2 ura3 hsp104::LEU2+	7