Phomopsin A

Phomopsin A

CAT N°: 19448
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Phomopsins are a family of mycotoxins produced by the fungus D. toxica, which predominantly infects lupines. Ingestion of lupines infected with D. toxica causes lupinosis, a degenerative disorder that can result in acute liver damage, brain damage, and death.{31104} Phomopsin A is a cyclic hexapeptide mycotoxin that binds ?-tubulin in a vinca domain, overlapping with the site targeted by vinblastine (Item No. 11762) and other tubulin inhibitors.{31105,31103} It binds ?-tubulin from higher organisms but not ?-tubulin or fungal mycelial tubulin.{31106,31107} Phomopsin A blocks microtubule growth, modulates the dynamics of microtubules, and interferes with mitosis.{31107}

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