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| Author | 9 Posts | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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GoodGirl
. Topics: 154 Posts: 2516 |
Hi, FA ( 2009 ed, p.143) says that shiga-like toxin is encoded by lysogenic phage . Is not that a mistake? I always thought that is plasmid encoded. Also in FA is cholera toxin encoded in lysogenic phage, Kaplan says it is encoded in bacterial chromosome. Who is right ? Thanks
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stepdude1
| Forum Newbie Topics: 75 Posts: 381
good q
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GoodGirl
| . Topics: 154 Posts: 2516
Wonder if anybody knows answer.
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Melu
| Forum Junior  Topics: 16 Posts: 1510
Wonder  , I remeber FA gives ABCDE for lysogenic bacteria.
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dwyt
| Forum Newbie Topics: 1 Posts: 10
both shiga toxin and cholera toxin are encoded by bacterial chromosomes (Chromosomal Encoded Somethings = Cholera, Endotoxin, Shiga toxin ) phage coded toxins' pnemonic is OBED (bacteriae pregnant with viruses )-- O Ag of salmonella Botulinum toxin Erythrogenic toxin of s.pyogens Diphtheria toxin Other toxins and Multiple drug resistance -- Plasmid source--kaplan micro
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Melu
| Forum Junior Topics: 16 Posts: 1510
GG, today I did review of Micro basic chapter and dwyt states thay give "OBED" and also states "plasmids carry many genes for antibiotic resistance and most bacterial exotoxins" Looks like FA has the latest info! Check this new publication out. iai.asm.org/cgi/content/ful...790&resourcetype=HWFIG "The bacteriophage-encoded Shiga toxins (Stxs) are believed to play an important role in the pathogenesis of hemorrhagic colitis, hemolytic-uremic syndrome, and thrombotic thrombocytopenic purpura that may result from human infection with lysogenic Escherichia coli (8). Stxs are A-B-type toxins which bind to the host glycolipid Gb3 (11)"
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Melu
| Forum Junior Topics: 16 Posts: 1510
By the way GG check this strange link out! rxusmle.com/forums/USMLE-St...and_cholera_toxin/3/635073 You are KelsyM and I am Krazy Kroc here!!  
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GoodGirl
| . Topics: 154 Posts: 2516
Melu wrote: By the way GG check this strange link out! http://rxusmle.com/forums/USMLE-Step-1/Shiga-like... You are KelsyM and I am Krazy Kroc here!! WHAT ??? 
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GoodGirl
| . Topics: 154 Posts: 2516
Thanks for the info, I hope I will not get this on the test.
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 Similar forum topicscholera toxin pancreatic cholera cholera | Related resources Blueprints in Obstetrics and Gynecology Human Anatomy and Physiology GC 1132 Kaplan Lecture Notes and Qbank |
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