Fumonisin

Fumonisin refers to any one of a class of related chemical structures, the fumonisins, that constitute a group of fungal mycotoxins originally identified with genus Fusarium, a mycotoxin known for its contamination of infested corn seed (as well as other plants and foodstuffs), the infecting species, in particular, being within Fusarium's Liseola section. As shown in the example in the figure (of fumonisin B1), members of the family are composed of a central "chai[n] of about 20 carbons", and bear an "acidic ester, acetylamino and sometimes other substituents". The fumonisins inhibit ceramide synthetase an enzyme that converts sphingolipids to ceramides.

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