Activators & Small Molecules
•
Inducers can also activate activators:
–
VAI (3-N-oxohexanoyl-L-Homoserine lacton)
à
luxR
•
Use as a logical (AND) gate:
operator
promoter
gene
RNA
P
inactive
activator
operator
promoter
gene
RNA
P
active
activator
inducer
no transcription
transcription
Inducer
Activator
Output