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J Antibiot (Tokyo). 1993 Dec;46(12):1788-98.

FR901459, a novel immunosuppressant isolated from Stachybotrys chartarum No. 19392. Taxonomy of the producing organism, fermentation, isolation, physico-chemical properties and biological activities.

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1
Exploratory Research Laboratories, Fujisawa Pharmaceutical Co., Ltd., Ibaraki, Japan.

Erratum in

  • J Antibiot (Tokyo) 1994 Feb;47(2):C-1.

Abstract

FR901459, a novel immunosuppressant, has been isolated from the fermentation broth of Stachybotrys chartarum No. 19392. The molecular formula of FR901459 was determined as C62H111N11O13. FR901459 was found to be a member of the cyclosporin family. However, it is structurally distinct from any other cyclosporins discovered so far, in that Leu is present at position 5 instead of Val. FR901459 was capable of prolonging the survival time of skin allografts in rats with one third the potency of cyclosporin A.

PMID:
8294235
DOI:
10.7164/antibiotics.46.1788
[Indexed for MEDLINE]
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