Fig. 10
From: A novel transcriptional repressor specifically regulates xylanase gene 1 in Trichoderma reesei
XTR1 competes with the transactivator XYR1 for binding to xyn1 promoter. A The sequence of Pxyn1 (− 321 ~ − 217 bp) wherein three putative binding sites of the transactivator XYR1 was indicated in blue, and the binding site of the repressor XTR1 identified in this study was indicated in red. Two inverted putative binding sites of XYR1 were also underlined for clarity. B Competitive EMSA with the presence of both recombinant XYR1 DBD and XTR1 DBD. The Pxyn1 (− 321 ~ − 217 bp) fragment was used as the probe