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Glucosylquestiomycin, a novel antibiotic from Microbispora sp. TP-A0184: fermentation, isolation, structure
Y Igarashi1, K Takagi, T Kajiura
1Biotechnology Research Center, Toyama Prefectural University, Kosugi, Japan.
The Journal of Antibiotics
|January 23, 1999
Abstract:
Glucosylquestiomycin, a novel N-glucopyranoside of questiomycin A, was isolated from the culture broth of Microbispora sp. TP-A0184. The absolute configuration of the sugar was determined as D-configuration by chemical synthesis. The new antibiotic showed antibacterial activity against gram-positive and -negative bacteria and yeasts and cytotoxic activity against U937 cells.