Regarding a bacterial transcription unit, which of the following ite.pdf
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The document discusses trans-acting elements in bacterial transcription units, identifying RNA polymerase and the Pribnow box as key examples. It explains that trans-acting factors are proteins that regulate gene expression at separate locations by interacting with cis-acting elements. Additionally, it highlights the role of these factors in stabilizing the initiation complex and their potential to act as positive regulators.
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Regarding a bacterial transcription unit, which of the following ite.pdf
- 1. Regarding a bacterial transcription unit, which of the following items is a trans-acting element? A. Stop codon B. Rho-independent terminator C. Pribnow box D. RNA polymerase E. None of these. F. –35 region Solution trans-acting elements are C. Pribnow box -promoters D. RNA polymerase A trans-acting DNA element is a DNA sequence that codes for a protein (a trans-acting factor) that controls the expression of a gene at a separate location by binding to its cis-acting element.Trans-acting factors are enzymes that interact with RNA polymerase.They bind to RNA polymerase to stabilize the initiation complex.They may also bind to a few promoters and serve as positive regulators.A trans-acting factor can affect the expression of genes located on separate chromosomes.