Энниатин А1

Использование

Enniatins are a family of depsipeptide ionophores, produced several Fusarium species. More recently, the effects of the ennitins on acyl-CoA cholesterol transferase, transporters and the selectivity of their antitumour action have received more focus. Enniatin A1 is one of four major analogues of the enniatin complex and has previously not been available for investigation.

Определение

ChEBI: An enniatin obtained from formal cyclocondensation of one N-[(2R)-2-hydroxy-3-methylbutanoyl]-N-methyl-L-valine and two N-[(2R)-2-hydroxy-3-methylbu anoyl]-N-methyl-L-isoleucine units.

Биохимия/физиол Действия

Enniatins are a group of cyclohexadepsipeptide mycotoxins produced by Gnomonia errabuda and several Fusaria species, with phytotoxic, antibiotic, and insecticidal activities. Enniatins function as ionophors by their incorporation into the cellular membrane to form dimeric structures that transport monovalent ions across the membrane (especially the mitochondrial membranes) affecting oxidative phosphorylation uncoupling. It has been demonstrated that enniatins have a cytotoxic effect on human cancer cells. Furthermore, incubation of H4IIE hepatoma cells with enniatins strongly diminished phosphorylation of the ERK (p44/p42).