The phenotype of mkt1Δ and pbp1Δ mutants is dependent on the HO 3′ UTR. Each yeast strain was streaked onto SC−Ade or SC+Ade plates and incubated for 3 days at 30°C. (A) Yeast strains: 10B (wild-type [WT] HOp-ADE2-HO 3′UTR), TTC47 (wild-type HOp-ADE2-ADH1 3′UTR), TTC478 (mkt1Δ HOp-ADE2-HO3′UTR), and TT1108 (mkt1Δ HOp-ADE2-ADH1 3′UTR). (B) Yeast strains: TTC798 (pbp1Δ HOp-ADE2-HO 3′UTR), TTC1334 (pbp1Δ HOp-ADE2-ADH1 3′UTR), TTC1257 (mkt1Δ pbp1Δ HOp-ADE2-HO 3′UTR), and TTC1333 (mkt1Δ pbp1Δ HOp-ADE2-ADH1 3′UTR).