CTS1 mRNA expression is upregulated in calcineurin and cts1Δ570 mutants. Shown are results of Northern blot analysis of total RNA isolated from isogenic wild-type (JEC21) and cna1 (MCC3), cnb1 (DSF11), and cts1-570 (DSF22) mutant strains grown at 25 or 37°C for 4 h. Following hybridization with the CTS1 300-bp probe, the blot was stripped and reprobed with CNB1, followed by GPD1 as a control for loading and hybridization conditions. WT, wild type.