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RNA Metabolism - Coggle Diagram

- - - - 5 6
- - - - cleaves RNA of virusoids (circular RNAs that are replicated by plant viruses)
      - so named because 20 structure looks like head of hammer
    - - cleaves precursors to tRNAs by recognizing the shape of the pre-tRNA and the CCA sequence
        
        19
    - - Example: 26S rRNA precursor from protozoan Tetrahymena
- - - - two consensus sequences at -10 (TATAAT) and —35 (TTGACA) (TATA sequences )
    - - An A-T—rich upstream promoter element between —40 and —60
        
        A-T—rich sequences promote strand separation.
- - - - 9
- - - - 13-16
  - - - 17 18
- - - - 3
    - - makes the RNA POI pause, dissociate
  - - - 4
- - - - promoter sequence — deviating from the consensus sequence
      - activator proteins — CRP
      - repressor proteins — block necessary binding sites
- - - - TBP is part of multisubunit complex TFIID.
  - - - 7