Abstract
New antitumor antibiotic glidobactins A, B and C were isolated from the cultured broth of a gliding bacterium, Polyangium brachysporum sp. nov. No. K481-B101. They are novel molecules carrying the common cyclic tripeptide nucleus substituted with different alpha, beta, gamma, delta-unsaturated fatty acids. Glidobactins exhibit broad inhibitory activity against fungi and yeasts, and prolong the life span of mice inoculated with P388 leukemia cells.
MeSH terms
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Animals
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Antibiotics, Antineoplastic / isolation & purification*
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Antibiotics, Antineoplastic / pharmacology
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Chemical Phenomena
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Chemistry
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Drug Screening Assays, Antitumor
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Female
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Fungi / drug effects
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Leukemia L1210 / drug therapy
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Leukemia P388 / drug therapy
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Lysine / analogs & derivatives
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Lysine / isolation & purification
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Lysine / pharmacology
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Magnetic Resonance Spectroscopy
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Male
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Melanoma, Experimental / drug therapy
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Mice
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Microbial Sensitivity Tests
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Myxococcales / metabolism
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Peptides, Cyclic
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Spectrophotometry, Infrared
Substances
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Antibiotics, Antineoplastic
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Peptides, Cyclic
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glidobactin A
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glidobactin B
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glidobactin C
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Lysine