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Antibiotic and antimalarial quinones from fungus-growing ant-associated Pseudonocardia sp.


ABSTRACT: Three new members of the angucycline class of antibiotics, pseudonocardones A-C (1-3), along with the known antibiotics 6-deoxy-8-O-methylrabelomycin (4) and X-14881 E (5) have been isolated from the culture of a Pseudonocardia strain associated with the fungus-growing ant Apterostigma dentigerum. Compounds 4 and 5 showed antibiotic activity against Bacillus subtilis 3610 and liver-stage Plasmodium berghei, while 1-3 were inactive or only weakly active in a variety of biological assays. Compound 5 also showed moderate cytotoxicity against HepG2 cells.

SUBMITTER: Carr G 

PROVIDER: S-EPMC3481556 | biostudies-literature | 2012 Oct

REPOSITORIES: biostudies-literature

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Antibiotic and antimalarial quinones from fungus-growing ant-associated Pseudonocardia sp.

Carr Gavin G   Derbyshire Emily R ER   Caldera Eric E   Currie Cameron R CR   Clardy Jon J  

Journal of natural products 20121001 10


Three new members of the angucycline class of antibiotics, pseudonocardones A-C (1-3), along with the known antibiotics 6-deoxy-8-O-methylrabelomycin (4) and X-14881 E (5) have been isolated from the culture of a Pseudonocardia strain associated with the fungus-growing ant Apterostigma dentigerum. Compounds 4 and 5 showed antibiotic activity against Bacillus subtilis 3610 and liver-stage Plasmodium berghei, while 1-3 were inactive or only weakly active in a variety of biological assays. Compound  ...[more]

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