A novel sulfonic-acid analogue of ceramide is the major extractable lipid of the gram-negative marine bacterium Cyclobacterium marinus WH

被引:19
作者
Batrakov, SG
Nikitin, DI
Sheichenko, VI
Ruzhitsky, AO
机构
[1] Minist Hlth, Res Ctr Hydrobios, Moscow 129301, Russia
[2] Russian Acad Sci, Inst Microbiol, Moscow 117811, Russia
[3] Acad Agr Sci, All Russian Res Inst Med & Aromat Plants, Moscow 113628, Russia
来源
BIOCHIMICA ET BIOPHYSICA ACTA-LIPIDS AND LIPID METABOLISM | 1998年 / 1391卷 / 01期
关键词
sulfonic-acid analogue of ceramide; lipodipeptide; phosphatidylcholine; phosphatidylethanolamine; (Cyclobacterium marinus);
D O I
10.1016/S0005-2760(97)00165-3
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The extractable lipids of the gram-negative, sea-water bacterium Cyclobacterium marinus strain WH contain about 94% of polar components which consist of two phospholipids, phosphatidylethanolamine (29% of the total lipids) and phosphatidylcholine (7%), and two phosphorus-free lipids. One of the latter has been shown to be a novel sulfonic-acid analogue of ceramide, 2-D-(2'-D-hydroxy-13'-methyltetradecanoyl) amino-3-D-hydroxy-15-methylhexadec-4 (E)-en-1-sulfonic acid (48%), and other is a lipodipeptide, N-[3-D-(13'-methyltetradecanoyloxy)-15-methylhexadecanoyl] glycyl-L-serine (11%), which has so far been found only in a Flavobacterium sp. strain. The dominant fatty acid residues of the phospholipids are iso-15:0, n-16:0, 16:1 and 18:1, the acyl residues linked to the sn-1 carbon of the glycerol moiety being somewhat more saturated as compared with those located at the sn-2 position. A new procedure for determination of the absolute configuration of 2- and 3-hydroxy fatty acids is briefly described. (C) 1998 Elsevier Science B.V.
引用
收藏
页码:79 / 91
页数:13
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