A yeast-one-hybrid assay shows the binding of PbZFP1, PbHB1, PbHB2, and PbHB3 to the upstream region (- 500 bp to - 100 bp) of the initiation codon of PbAAO . SD/-Leu, SD medium lacking Leu; SD/Leu + AbA 200 , 200 ng/mL Aureobasidin A was added in the SD medium lacking Leu.
