Separation and analysis of free ceramides containing 2-hydroxy fatty acids in Sphingobacterium species |
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| Authors: | Ikuya Yano Sadao Imaizumi Ikuko Tomiyasu Eiko Yabuuchi |
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| Institution: | Department of Bacteriology, Niigata University School of Medicine, Niigata-shi, Asahimachidori-1, Niigata 951 Japan;Tezukayama Junior College, Nara-shi, Gakuen-5-3 631, Japan;Department of Bacteriology, Gifu University School of Medicine, Gifu-shi, Tsukasa-chyo, Gifu 500, Japan |
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| Abstract: | Abstract The occurrence of free ceramides was shown in the chloroform-methanol extractable lipids of 16 strains of Sphingobacterium including three species: S. versatilis, S. multivorum and S. mizutae . The predominant long-chain base was identified as a branched-chain, saturated dihydroxy base with a carbon chain consisting of 17 carbon atoms, while the most abundant fatty acid was 2-hydroxy-13-methyltetradecanoic acid. The major molecular species of the intact ceramides were identified as LCB- d - iso -17 : 0-2-OH iso -15 : 0FA, LCB- d - iso -17 : 0- iso -15 : 0FA and LCB- d -n16 : 0- iso -15 : 0FA. |
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| Keywords: | Bacterial sphingolipid ceramide d-iso 17 : 0 sphinganine 2-hydroxy isopentadecanoic acid |
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