Control of enzyme amount: Riboswitches

Question 1

riboswitches are another method of regulating

Answer 1

enzyme amount

Question 2

riboswitches are

Answer 2

regulatory segments of mRNA that can detect small molecules

they bind the 5’ end of transcripts

Question 3

riboswitch+ligand binds to

Answer 3

binds to the target mRNA and prevents or terminates transcription by forming a secondary structure - A GC stem loop

binds to the ribosome binding site in target mRNA so it cannot be loaded onto the ribosome and translated