Biosynthesis of archaebacterial ether lipids. Formation of ether linkages by prenyltransferases
作者:Donglu Zhang、C. Dale Poulter
DOI:10.1021/ja00057a008
日期:1993.2
Biosynthesis of (R)-2,3-di-O-phytanylglycerol (1), the core lipid of the membranes in the strict anaerobe Methanobacterium thermoautotrophicum, was studied in cell-free preparation. Two prenyltransferase activities were separated by ultracentrifugation. The cytosolic fraction contained activity for (S)-3-O-geranylgeranylglyceryl phosphate synthase (CGGP synthase), which catalyzes alkylation of (S)-glyceryl
在无细胞制备中研究了 (R)-2,3-di-O-phytanylglycerol (1) 的生物合成,这是严格厌氧型嗜热自养甲烷杆菌膜的核心脂质。通过超速离心分离两种异戊二烯基转移酶活性。胞质部分含有 (S)-3-O-香叶基香叶基甘油基磷酸合酶 (CGGP 合酶) 的活性,该酶催化 (S)-甘油基磷酸酯 [(S)-3-OP] 被香叶基香叶基二磷酸 (5-OPP) 烷基化,而颗粒含有 (S)-2,3-O-二香叶基香叶基甘油基磷酸合酶 (DGGGP 合酶) 的活性,该酶催化 (S)-3-O-香叶基香叶基甘油基磷酸酯 [(S)-12-OP] 通过 5-奥普