anonymous
  • anonymous
Are exotoxins only secreted by gram-negative bacteria? I read that LPS are the same as exotoxins, so it would follow that only gram-negative secrete them.
Biology
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jamiebookeater
  • jamiebookeater
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agreene
  • agreene
this is a pretty common misconception, more info here: http://textbookofbacteriology.net/proteintoxins.html
anonymous
  • anonymous
I read the article, and it confirmed what I said. Am I confusing something still?
agreene
  • agreene
maybe I'm just being stupid then, sorry im rather tired, let me re-read the article, i just real quickly scimmed it...

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anonymous
  • anonymous
I might be wrong. I am just trying to figure out whether exotoxins and LPS are the same, in which case they don't pertain to gram-positive.
agreene
  • agreene
yeah sorry, i misread the bit about endotoxins as being about exotoxins... just a bit tired... lol
agreene
  • agreene
exotoxins dont have to be LPS, but LPS are exotoxins, If im remembering correctly.
anonymous
  • anonymous
So gram-positive bacteria can secrete exotoxins?
agreene
  • agreene
Yes, if I'm not going crazy due to sleep deprivation, lol
anonymous
  • anonymous
Haha no problem. Thanks.
anonymous
  • anonymous
exotoxins are mostly produced by gram + ones and endotoxins by gram - ones. LPS is not an exotoxin it is present in gram negative bacterial cell wall and it's lipid A component works as an endotoxin thatis notorious for gram negative sepsis and systemic symptoms.
Dean.Shyy
  • Dean.Shyy
This may help you: http://is.gd/DT6dBy
anonymous
  • anonymous
I was confusing the exotoxins and endotoxins with where they were coming from. Thank you @DocNomi
anonymous
  • anonymous
You are always welcome @maud101

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