Streptobactin, a tricatechol-type siderophore from marine-derived Streptomyces sp. YM5-799 |
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Authors: | Matsuo Yoshihide Kanoh Kaneo Jang Jae-Hyuk Adachi Kyoko Matsuda Satoru Miki Osamu Kato Toshiaki Shizuri Yoshikazu |
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Affiliation: | Suntory Holdings Ltd. , Yamazaki, Shimamoto, Mishima, Osaka 618-0001, Japan. |
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Abstract: | A new catechol-type siderophore, streptobactin (1), was isolated from a culture broth of the marine-derived actinomycete Streptomyces sp. YM5-799. The structure of streptobactin was determined by NMR and MS analyses and ESIMS/MS experiments to be a cyclic trimer of benarthin. A dibenarthin (2), a tribenarthin (3), and benarthin (4) were also obtained. The production of 1 was regulated by an iron concentration in the culture. The iron-chelating activity of the compounds was evaluated by the chrome azurol sulfonate assay. |
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