CZF1 induction is commonly associated with CDR acquisition. The expression of CZF1 was measured by final point semi-quantitative RT-PCR in different pairs of drug sensitive/resistant strains presenting either a drug resistance of the CDR or of the MDR kind. On the right panel, the expression of CZF1 was measured in a series of isolates coming from the same patient at different step of fluconazole resistance acquisition . Seventeen isolates were available from the original publication, four of them (numbers 1, 8, 9 and 17) were tested here. The MIC50 of each isolate for fluconazole is indicated. ACT1 was used as a reference gene.