Biosynthetic Studies of ω-Cycloheptyl Fatty Acids in <i>Alicyclobacillus cycloheptanicus</i>. Formation of Cycloheptanecarboxylic Acid from Phenylacetic Acid
作者:Bradley S. Moore、Kevin Walker、Ingo Tornus、Sandeep Handa、Karl Poralla、Heinz G. Floss
DOI:10.1021/jo962402o
日期:1997.4.1
(13)C- and (2)H-labeled intermediates demonstrated that cycloheptanecarboxylic acid (3), probably as its CoA thioester, is the starter unit for omega-cycloheptyl fatty acid biosynthesis. Analysis of the resultant labeling pattern from a feeding experiment with [U-(13)C(6)]glucose suggested a shikimate pathway origin of 3 via aromatic amino acids. [1,2-(13)C(2)]Phenylacetic acid (6) was efficiently metabolized
研究了环庚酸脂环菌(以前称为环庚酸芽孢杆菌)的ω-环庚基脂肪酸中结构新颖的单取代环庚烷环的形成。用(13)C和(2)H标记的中间体进料的实验表明,环庚烷羧酸(3)可能是其CoA硫酯,是ω-环庚基脂肪酸生物合成的起始单元。对[U-(13)C(6)]葡萄糖进料实验产生的标记模式的分析表明,3的iki草酸酯途径起源于芳香族氨基酸。[1,2-(13)C(2)]苯基乙酸(6)以七元环假单胞菌代谢物thiotropocin的方式有效地代谢为3衍生的部分。测定了6个芳族氢和苄基氢的命运。