题目内容

Both the transcriptional activator and transcriptional co-activator can activate the transcription process, the difference between these two is whether it would bind to the DNA.()

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In helix-turn-helix motif, recognition helix can interaction with DNA backbone to enhance the force of location and combination.()

In leucine zipper motif, leucine appears in every 7 amino acids, and it combine to DNA via these leucines of the structure.()

In the transcription factor which contains helix-loop-helix motif,its DNA binding domain usually contains more acidic amino acid.()

All of the transcription factors can bind to the basical transcriptional apparatus to initiate the transcription.()

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