Question

Describe the regulation associated with attenuation. Describe how specifically this regulates the amount of various amino acids within a bacteria cell.

Answer 1

The process of attenuation is a regulatory characteristic that can be found in Bacteria and Archaebacteria that lead to premature termination or block of the transcription process. The attenuators are the 5'-cis-acting regulatory areas that fold into one of two substitutes of the RNA structures that conclude the accomplishment of transcription.

In bacteria cells, attenuation controls the trp operon. It involves the existence of a stop signal that signifies premature termination. Like the regulation of trp by the trp repressor, attenuation is a system for reducing the trp operon expression when the levels of tryptophan are elevated. Though, to a certain extent than blocking the initiation or beginning of transcription, attenuation stops the transcription end or completion.