| Strains | Genotype | Source |
|---|---|---|
| JRY4013 | W303-1a MATα ADE2 lys2Δ can1-100 his3-11 leu2-3,112 trp1-1 ura3-1 | J. Rine |
| LRY1098/JRY4608 | JRY4013 sir3Δ::LEU2 | J. Rine |
| LRY3080 | JRY4013 sir3Δ::LEU2 sir4Δ::KlSIR4-HA-HIS3 | This study |
| LRY3081 | JRY4013 sir3Δ::LEU2 ScSIR4::HA-HIS3 | This study |
| LRY1021 | MATa his4Δ | P. Schatz |