Cholera toxin, molecular model. Cholera toxin is a protein complex secreted by the bacterium Vibrio cholerae, that causes the disease cholera. It is made up of a wedge-shaped A subunit (pink and blue) and five B subunits (across top) that form a ring which binds to the intestinal lining. In its most severe forms, cholera is one of the most rapidly fatal illnesses known.
July 24th, 2016
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