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Dictionary » T » Toxin

Toxin

toxin

(Science: pharmacology) A poison, frequently used to refer specifically to a protein produced by some higher plants, certain animals and pathogenic bacteria, which is highly toxic for other living organisms.

Such substances are differentiated from the simple chemical poisons and the vegetable alkaloids by their high molecular weight and antigenicity.

Origin: Gr toxikon = arrow poison, from Gr. Toxikos = of or for a bow A poisonous substance produced during the metabolism and growth of certain microorganisms and some higher plant and animal species.Created by organisms in their metabolic processes and prove injurous to other organisms.


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cellular mechanisms that result in symptoms of cholera

The cholera toxin (CTX or CT) is an oligomeric complex made up of six protein subunits: a single copy of the A subunit (part A), and five copies of the B subunit (part B), connected by a disulfide bond. The five B subunits form ...

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by adithya528
Tue Dec 11, 2012 1:49 pm
 
Forum: Cell Biology
Topic: cellular mechanisms that result in symptoms of cholera
Replies: 4
Views: 1064

Certain toxins are capable of blocking the Ach receptors wit

Certain toxins are capable of blocking the Ach receptors within a motor end plate. Explain the health consequences of a heavy exposure to this type of toxin

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by slonce1502
Mon Dec 03, 2012 1:59 am
 
Forum: General Discussion
Topic: Certain toxins are capable of blocking the Ach receptors wit
Replies: 1
Views: 321

cellular mechanisms that result in symptoms of cholera

Just wanted to add in...one of the mechanisms is direct stimulation of chloride secretion by enterocytes, which is a result of the cholera toxin, but I don't really understand what this is/I can't find much information on it. This mechanism is responsible for secretory diarrhea

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by tesla93
Mon Nov 19, 2012 10:35 pm
 
Forum: Cell Biology
Topic: cellular mechanisms that result in symptoms of cholera
Replies: 4
Views: 1064

cellular mechanisms that result in symptoms of cholera

Hi all, I''m trying to understand how cholera symptoms are developed, and all I know so far is that the cholera toxin (CT) is responsible for the main symptom of cholera, which is secretory diarrhea. More specifically, CT is an A-B5 subunit-type exotoxin released in the small intestine, ...

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by tesla93
Mon Nov 19, 2012 9:59 pm
 
Forum: Cell Biology
Topic: cellular mechanisms that result in symptoms of cholera
Replies: 4
Views: 1064

Re:

... universe. God had a god, who had a god, who had a god... Why would God put such genes into humans if he didn't want to use them? Would you put toxin gene into bacteria if you didn't want the bacteria to produce it? This one is very interesting. So I will give you futuristic example: Suppose ...

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by Cat
Sun Oct 07, 2012 9:59 pm
 
Forum: Evolution
Topic: Are evolution and creationism mutually exclusive???
Replies: 23
Views: 3232
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