THE ROLE OF METHYLSULFONIUM COMPOUNDS IN THE BIOSYNTHESIS OF N-METHYLATED METABOLITES IN CHONDRIA-COERULESCENS

被引:19
作者
CHILLEMI, R [1 ]
PATTI, A [1 ]
MORRONE, R [1 ]
PIATTELLI, M [1 ]
SCIUTO, S [1 ]
机构
[1] UNIV CATANIA,DIPARTIMENTO SCI CHIM,VIALE A DORIA 6,I-95125 CATANIA,ITALY
来源
JOURNAL OF NATURAL PRODUCTS | 1990年 / 53卷 / 01期
关键词
D O I
10.1021/np50067a011
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The possible metabolic relationships between methylsulfonium and N-methylated compounds were investigated in the red alga Chondria coerulescens by means of radiotracer techniques. The alga, whose H2O-soluble fraction contains S-methylmethionine [1], dimethyl-β-propiothetin [2], 4-hydroxy-N-methylproline [3], and γ-aminobutyric acid betaine [4], was fed with methionine, S-methylmethionine, dimethyl-β-propiothetin, and γ-aminobutyric acid betaine, all [14CH3]-labeled. Following administration of [14CH3]-dimethyl-β-propiothetin, methyl-labeled 4-hydroxy-N-methylproline was isolated, thus supporting the hypothesis that sulfonium salts may function as methyl donors in the biosynthesis of N-methylated compounds. © 1990, American Chemical Society. All rights reserved.
引用
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页码:87 / 93
页数:7
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