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Biosynthesis of Gabosines A, B, and C, Carba Sugars from Streptomyces cellulosae

✍ Scribed by Regina Höfs; Silke Schoppe; Ralf Thiericke; Axel Zeeck

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
299 KB
Volume
2000
Category
Article
ISSN
1434-193X

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✦ Synopsis

The biosynthesis of the gabosines A-C (3-5) was studied by feeding cultures of Streptomyces cellulosae subsp. griseorubiginosus (strain S 1096) with 13 C-labeled precursors. Although the carba sugars are structurally related to shikimic acid, the biosynthetic origin was found to be different to the shikimate pathway. The results revealed that the gabosines are formed via a pentose phosphate pathway by cyclization Scheme 1. Structures of bioactive carba sugar containing secondary metabolites

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