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10 Cards in this Set
- Front
- Back
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Is staphylococcus aureus catalse and coagulase + or -
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Catalase +
Coagulase + (distinugishes S. aureus from other staph) (Think of visual image) |
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Pore-forming toxins that cause contents of cell to leak out:
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(hemolysins)
Staphyloccoccus aureus |
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Exfoliating toxin
skin disease Scaled skin syndrome |
S. aureus
Assualt weaponry |
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Superantigen toxin
Present in toxic shock syndrom Enterotoxins (cause food poisoning) |
S. aureus
Assualt weaponry |
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What proteins are produce by S. aureus that allow the bacteria to "tunnel" through tissues
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1. Coagulase
2. Catalase: resist o2 dependent killing 3. Staphylokinase/fibrinolysin: dissolve clots 4. Penicillinase: hydrolyze Ab 5. Lipase: for colonization of sebaceous glands |
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Wielding protin A and coagulase shields defending itself from attacking Abs and phagocytosis
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S. aureus
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Boils (furuncles), hair follicle infection, impetigo, wound infections are diseases caused by
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Direct organ invasion of S. aureus
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What bacteria produces exotoxin assulat weaponry?
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S. aureus
Exfoliating, pore forming, and superantigen/TSS |
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Scaled skin synrome, toxic shock syndrome, and food poisoning are caused by what from S. aureus?
"I told you not to eat the mayonnaise sweetheart" |
Exotoxin release, toxigenic diesease.
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What controls production of virulent factors for S. aureus?
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Cell density (quorum sensing)
Wait until have enough of themselves present before they mount their fight Sense each other's presence via AgrD-->sensed by AgrC-->transduced to ArgA-->activate RNA III molecule expression |
