In vitro biosynthesis of [Thr2, Leu5, D-Hiv8, Leu10]cyclosporin, a cyclosporin-related immunosuppressive peptolide

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We were able to prepare an enzyme fraction from crude extracts of the mycelium of the fungus Cylindrotrichum Bonorden, which is capable of synthesizing the new peptolide SDZ 214-103 under consumption of the constitutive amino acids, D-2-hydroxyisovaleric acid, ATP and S-adenosyl-L-methionine. The enzyme does not synthesize CyA, while cyclosporin synthetase does not synthesize the peptolide. Peptolide synthetase has a high molecular weight in the same range as cyclosporin synthetase (about 1.5 MDa).

Original languageEnglish
JournalBiomedica Biochimica Acta
Issue number10-11
Publication statusPublished - 1 Dec 1991
Externally publishedYes

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