Metabolic regulation - major modes of regulation

6 important questions on Metabolic regulation - major modes of regulation

Regulation of gene expression is a major process in all cells and helps to control energy and resources, what is it called if the expression of some molecules are always there under all growth conditions. These molecules are said to be:

Constitutive

Cells can use two different approaches to regulate protein functions what are these two?

  1. Controle the activity of a preformed enzyme
  2. controle the amount of an enzyme

How do you call it if the activity of a protein is regulateed only after it has been synthesized?

Post-translationally
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In bacteria the most genes are transcribed into (a form of RNA)

Messenger RNA

The amount of protein synthesized can be regulated at two levels, which are those?

  • At the level of transcription (by varying the amount of mRNA made)
  • at level of translation (by translating or not translating the mRNA)

...... Encodes a protein product that is easy to detect an assay and thus can be fused to other genes or regulatory elements to monitor gene expression.

Reporter genes

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