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  • Title: Branimycins B and C, Antibiotics Produced by the Abyssal Actinobacterium Pseudonocardia carboxydivorans M-227.
    Author: Braña AF, Sarmiento-Vizcaíno A, Pérez-Victoria I, Otero L, Fernández J, Palacios JJ, Martín J, de la Cruz M, Díaz C, Vicente F, Reyes F, García LA, Blanco G.
    Journal: J Nat Prod; 2017 Feb 24; 80(2):569-573. PubMed ID: 28169531.
    Abstract:
    Two new antibiotics, branimycins B (2) and C (3), were produced by fermentation of the abyssal actinobacterium Pseudonocardia carboxydivorans M-227, isolated from deep seawater of the Avilés submarine Canyon. Their structures were elucidated by HRMS and NMR analyses. These compounds exhibit antibacterial activities against a panel of Gram-positive bacteria, including Corynebacterium urealyticum, Clostridium perfringens, and Micrococcus luteus, and against the Gram-negative bacterium Neisseria meningitidis. Additionally, branimycin B displayed moderate antibacterial activity against other Gram-negative bacteria such as Bacteroides fragilis, Haemophilus influenzae, and Escherichia coli, and branimycin C against the Gram-positive Enterococcus faecalis and methicillin-sensitive and methicillin-resistant Staphylococcus aureus.
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