This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: REGULATION OF BACTERIAL GENE EXPRESSION Cells must regulate the synthesis of proteins, making only those proteins that are needed at any particular time. Many of these proteins are enzymes, which catalyze the chemical reactions that occur within the cell. By regulating the activity of the genes that code for these enzymes, all of the chemical activity of the cell can be regulated. Many of the bacterial proteins are always needed, so the genes for these proteins are not regulated. These are known as constitutive genes, and their products are constantly produced, so these genes could be said to be turned on at all times. An example of enzymes that would be classified this way are the enzymes needed for glycolysis. Other genes must be regulated, since their proteins are not needed at all times. This is done in two main ways, both of which control the amount of the enzyme present but do not influence the...
View Full Document