Gene regulation in prokaryotes and eukaryotes

I want to list all possible gene regulation processes that are available in prokaryotic and eukaryotic cells.

I will be glad if you help me to complete my list.



eukaryote:
- accessibility of chromatin (DNA-(de)methylation; histon (de)acetylation)
- transcription: Enhancer & tanscription factors
- RNA-processing: alternative splicing, alternative poly(a) sites
- Translation: RNAi (inhibition, degradation)
- Protein processing (modification, partial proteolysis)
- Protein degradation (proteasom)
- Transportation of the protein to the target structure



prokaryote
- Operator: activator and repressor
- attenuation (e.g. trp-operon)
- protein modification?



Question: is there also RNAi in prokaryotes?