Parts of the Operon
Name the three structural genes
What are...
Ara B, Ara A, Ara D
AraC polypeptide
What is...
Arabinose binding site.
In this environment, Glucose is present, but not Arabinose.
What is...
Inactive
What two sites does the AraC complex bind to when inactive?
What are...
AraO2 and AraI1
CAP Site
What is...
The binding site of the cAMP-CAP complex
In this environment, Arabinose is present, but not glucose.
What is...
Active
Name the three enzymes responsible for translation of the araBAD mRNA
What are..
L-arabinose-isomerase, L-Ribulokinase, and Ribulose-5-phosphate-epimerase
PBAD
What is...
The promoter region for the structural genes
In this environment, Arabinose is present, as well as glucose.
What is...
Active at basal levels.