lactose operons การใช้

• The lactose operon is one example of an inducible system.
• Monod explains that the rate of mRNA synthesis from the lactose operon determines the rate of the proteins synthesis.
• The " E . coli " lactose operon repressor LacI ( chain A ) and " E . coli " catabolite gene activator ( chain A ) both have a " helix-turn-helix " motif, but their amino acid sequences do not show much similarity, as shown in the table below.