Table 1.

Strains used in this study

Strain	Genotype
MAY200	MATa ade2-101 his3-Δ201 lys2-801 trp1-Δ901 ura3-52 (hht1 hhf1)::LEU2 (hht2 hhf2)::HIS3 plus pRM200 (CEN4 ARS1 TRP1 HHT2-HHF2) and pRM102 (CEN4 ARS1 URA3 pGAL10-HHT2 pGAL1-HHF2)
RMY430	MATa ade2-101 his3-Δ201 lys2-801 trp1-Δ901 ura3-52 (hht1 hhf1)::LEU2 (hht2 hhf2)::HIS3 plus pRM430 (CEN4 ARS1 TRP1 hht2-Δ430 HHF2)
MAY430	Same as RMY430, except pMX430 (hht2-Δ430 HHF2 cloned into pRS317) in place of pRM430, plus pRM102 (CEN4 ARS1 URA3 pGAL10-HHT2 pGAL1-HHF2)
MAY817	Same as MAY430, except pMX817 (hht2-Δ430, hhf2-Δ414)
MAY818	Same as MAY430, except pMX818 (hht2-Δ430, hhf2-Δ419)
MAY502	Same as MAY430, except pMX502 (hht2-Δ430, hhf2-K5,8,12G)
MAY503	Same as MAY430, except pMX503 (hht2-Δ430, hhf2-K5,8,12,16G)
MAY504	Same as MAY430, except pMX504 (hht2-Δ430, hhf2-K8, 12, 16G)
MAY505	Same as MAY430, except pMX505 (hht2-Δ430, hhf2-K5,12,16G)
MAY506	Same as MAY430, except pMX506 (hht2-Δ430, hhf2-K5,8,16G)
MAY512G	Same as RMY430, except pK512G (hht2-Δ430, hhf2-K5, 12G)
MAY512R	Same as RMY430, except pK512G (hht2-Δ430, hhf2-K5, 12R)
MAY58R	Same as RMY430, except pK58R (hh2-Δ430, hhf2-K5, 8R)