MM3 gm- secretion systems

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  1. What does Gm - secretion systems contribute to?
  2. What is secreted?
    products used for moving proteins from cytoplasm-->periplasm-->outer membrane--> envir/host 
  3. What is the sec system known as? Objective?
    • general secretory pathway (GSP)
    • transports proteins from cytoplasm to periplasm 
  4. What do newly transmitted proteins do?
    wrap around pilot & Sec B w/in cytoplasm
  5. How many types of pathways are there?
    7 which push proteins through OM 
  6. Type I 
    ABC transporter 
  7. Type II
    • Sec-dependent 
    • 2 step system
  8. Type III
    • Sec-independent 
    • forms channels
    • found only in Gm - bacteria
  9. Type IV
    • sec independent 
    • involves conjugal transfer
  10. Type V
    • sec dependent pathways:
    • transport effectors across periplasm 
    • 2nd step across OM 
    • SIMILAR to Type II
  11. Type VI
    • sec-independent pathways 
    • needle and tubule system 
  12. Type VII 
  13. Dependent =
    • lock system 
    • channel 
  14. What is the process for Type III
    bacteria pilli contact host cell
  15. Pathogen islands in bacteria do what?
    Encode proteins responsible for Type III system 
Card Set
MM3 gm- secretion systems
MM3 gm- secretion systems
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