细菌利用不饱和高级脂肪酸生物合成生物素维生素异构体。

Biosynthesis of biotin-vitamers from unsaturated higher fatty acids by bacteria.

作者信息

Ohsugi M, Miyauchi K, Inoue Y

出版信息

J Nutr Sci Vitaminol (Tokyo). 1985 Jun;31(3):253-63. doi: 10.3177/jnsv.31.253.

DOI:10.3177/jnsv.31.253

Abstract

The biosynthesis of biotin-vitamers from unsaturated higher fatty acids by the resting cell system of bacteria was investigated. Biotin-vitamer formation from oleic, linoleic and linolenic acids was found in certain bacteria belonging to the genera Enterobacter, Agrobacterium, Bacillus, Escherichia and Micrococcus. The biotin-vitamers were identified as a mixture of 7,8-diaminopelargonic acid, desthiobiotin and biotin. Metabolites other than biotin-vitamers from those fatty acids were analyzed by gas-liquid chromatography and mass spectrometry. Linoleic, oleic, C-17 and C-15 saturated fatty acids were identified as the main metabolites of linolenic acid. The pathway of biosynthesis of pimelic acid from linolenic acid by a strain of Bacillus sphaericus AKU 0227 was also studied.

摘要

研究了细菌静息细胞系统从不饱和高级脂肪酸生物合成生物素维生素的过程。在肠杆菌属、土壤杆菌属、芽孢杆菌属、大肠杆菌属和微球菌属的某些细菌中发现了从油酸、亚油酸和亚麻酸形成生物素维生素的现象。生物素维生素被鉴定为7,8 - 二氨基壬酸、脱硫生物素和生物素的混合物。通过气液色谱法和质谱法分析了那些脂肪酸产生的除生物素维生素以外的代谢产物。亚油酸、油酸、C - 17和C - 15饱和脂肪酸被鉴定为亚麻酸的主要代谢产物。还研究了球形芽孢杆菌AKU 0227菌株从亚麻酸生物合成庚二酸的途径。

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