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Cholera ToxinLegal notice  


Other terms
Toxin, Cholera,Cholera Exotoxin,Exotoxin, Cholera,Choleragen,Cholera Enterotoxin CT,CT, Cholera Enterotoxin,Enterotoxin CT, Cholera,Procholeragenoid,Cholera Toxin Protomer A,Cholera Toxin A Subunit,Choleragenoid,Cholera Toxin Protomer B,Cholera Toxin B Subunit

Description
Cholera Toxin: An ENTEROTOXIN from VIBRIO CHOLERAE. It consists of two major protomers, the heavy (H) or A subunit and the B protomer which consists of 5 light (L) or B subunits. The catalytic A subunit is proteolytically cleaved into fragments A1 and A2. The A1 fragment is a MONO(ADP-RIBOSE) TRANSFERASE. The B protomer binds cholera toxin to intestinal epithelial cells, and facilitates the uptake of the A1 fragment. The A1 catalyzed transfer of ADP-RIBOSE to the alpha subunits of heterotrimeric G PROTEINS activates the production of CYCLIC AMP. Increased levels of cyclic AMP are thought to modulate release of fluid and electrolytes from intestinal crypt cells.



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Legal notice
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