Julius Adam V Lopez, Toshihiko Nogawa, Yushi Futamura, Takeshi Shimizu, Hiroyuki Osada
The Journal of antibiotics 2019 DecA new siderophore glucuronide, nocardamin glucuronide (1), was isolated together with nocardamin (2) by applying the one strain-many compounds (OSMAC) approach to the ascamycin-producing strain, Streptomyces sp. 80H647, and performing multivariate analysis using mass spectral data. Structure elucidation was accomplished by a combination of NMR and MS analyses. The absolute configuration of the glucuronic acid moiety was found to be β-D-GlcA by hydrolysis using β-glucuronidase, subsequent derivatization of the hydrolysate, and comparison with standards. The siderophore activity of 1 was evaluated through the chrome azurol S assay and was comparable to that of 2 and deferoxamine (IC50 13.4, 9.5, and 6.3 μM, respectively). Nocardamin glucuronide (1) is the first example of a siderophore glucuronide.
Julius Adam V Lopez, Toshihiko Nogawa, Yushi Futamura, Takeshi Shimizu, Hiroyuki Osada. Nocardamin glucuronide, a new member of the ferrioxamine siderophores isolated from the ascamycin-producing strain Streptomyces sp. 80H647. The Journal of antibiotics. 2019 Dec;72(12):991-995
PMID: 31395970
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