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Related Experiment Videos

Structure of aplasmomycin

H Nakamura, Y Iitaka, T Kitahara

    The Journal of Antibiotics
    |September 1, 1977
    PubMed
    Summary
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    Catenulamide A, an acylated tripeptide containing 5-methoxy-L-kynurenine lactam from an actinomycete of the genus Catenuloplanes.

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    A novel antibiotic, aplasmomycin, derived from marine actinomycetes, demonstrates efficacy against Gram-positive bacteria and malaria parasites. This ionophore antibiotic features a unique symmetric structure with boron at its core.

    Area of Science:

    • Microbiology
    • Medicinal Chemistry
    • Structural Biology

    Background:

    • Marine actinomycetes are a rich source of novel bioactive compounds.
    • Antibiotic resistance necessitates the discovery of new antimicrobial agents.
    • Ionophores play crucial roles in cellular transport and have therapeutic potential.

    Purpose of the Study:

    • To isolate and characterize a new antibiotic from a marine actinomycete.
    • To evaluate the antimicrobial and antimalarial activity of the novel compound.
    • To elucidate the molecular structure of the isolated antibiotic.

    Main Methods:

    • Cultivation of marine actinomycete and isolation of aplasmomycin.
    • In vitro testing against Gram-positive bacteria.
    • In vivo testing against Plasmodium berghei.

    Related Experiment Videos

  • X-ray crystallographic analysis of the silver salt.

    • Main Results:

    • A new antibiotic, aplasmomycin, was successfully isolated.
    • Aplasmomycin exhibited inhibitory activity against Gram-positive bacteria in vitro.
    • The compound demonstrated efficacy against Plasmodium berghei in vivo.
    • X-ray crystallography revealed a symmetric structure with a central boron atom.

    Conclusions:

    • Aplasmomycin is a novel ionophore antibiotic with potential applications in treating bacterial infections and malaria.
    • The unique structure of aplasmomycin warrants further investigation for drug development.
    • Marine actinomycetes represent a promising resource for discovering new therapeutic agents.