A: Transcriptional regulator TetR family B: Transcriptional regulator TetR family C: Transcriptional regulator TetR family D: Transcriptional regulator TetR family E: Transcriptional regulator TetR family F: Transcriptional regulator TetR family Q: DNA (5'-D(*GP*TP*CP*GP*AP*CP*TP*CP*AP*AP*AP*AP*AP*TP*CP*AP*AP*GP*TP*AP*G)-3') X: DNA (5'-D(*CP*TP*AP*CP*TP*TP*GP*AP*TP*TP*TP*TP*TP*GP*AP*GP*TP*CP*GP*AP*C)-3') Y: DNA (5'-D(*GP*TP*CP*GP*AP*CP*TP*CP*AP*AP*AP*AP*AP*TP*CP*AP*AP*GP*TP*AP*G)-3') Z: DNA (5'-D(*CP*TP*AP*CP*TP*TP*GP*AP*TP*TP*TP*TP*TP*GP*AP*GP*TP*CP*GP*AP*C)-3') ヘテロ分子