Metabolic conversion of 24-methyl-Δ25-cholesterol to 24-methylcholesterol in higher plants
作者:Kyoko Takahashi、Kozue Nasu、Tadahiko Mashino、Masuo Morisaki、Noriyuki Hara、Yoshinori Fujimoto
DOI:10.1016/j.bmc.2005.08.061
日期:2006.2
Feeding of chemically synthesized [27-C-13]codisterol ([27-C-13]2), [27-C-13]24-epicodisterol ([27-C-13]3), [23,24-H-2(2)]codisterol ([23,24-H-2(2)]2), and [26,27-H-2(6)]24-methyldesmosterol ([26,27-H-2(6)]8) to Oryza sativa cell cultures, followed by MS and NMR analysis of the biosynthesized dihydrobrassicasterol (9)/campesterol (10), revealed that both (24R)- and (24s)-epimers of 24-methyl-Delta(25)-cholesterol (2/3) were converted to 9 and 10 via the common intermediate 24-methyldesmosterol (8). (c) 2005 Elsevier Ltd. All rights reserved.