Enhancer-dependent transcription in bacteria

• What is enhancer-dependent transcription?
• What is sigma54, sigmaN, NtrA?
• What is the consensus sequence for sigma54-dependent promoters?
• Which bacteria use sigma54/enhancer-dependent transcription?
• Where can I find out more?

Explanation of prediction results from PromScan

• Score
• Gene/ORF
• Sequence
• Position
• What is the consensus sequence for sigma54-dependent promoters?