LaBach J P, White D C
J Lipid Res. 1969 Sep;10(5):528-34.
Nearly half the phospholipids isolated from the anerobic bacterium Bacteroides melaninogenicus are phosphosphingolipids. The two major phosphosphingolipids have been characterized as ceramide phosphorylethanolamine and ceramide phosphorylglycerol. The long-chain bases of these phosphosphingolipids appear to have branched and normal saturated carbon chains of 17, 18, and 19 atoms; the phosphate is at the 1-position of the long-chain base. The composition of the amide-linked fatty acids of the phosphosphingolipids differs from that of the ester-linked fatty acids of the diacylphosphoglycerides in having a higher percentage of 14:0, 17:0, and 18:0 acids as well as containing nearly all the monoenoic fatty acids found in the bacterial lipids. The finding of phosphosphingolipids in bacteria is exceedingly rare and to our knowledge ceramide phosphorylglycerol has not been previously found in nature.
从厌氧细菌产黑色素拟杆菌中分离出的磷脂，近一半是磷酸鞘脂。两种主要的磷酸鞘脂已被鉴定为神经酰胺磷酸乙醇胺和神经酰胺磷酸甘油。这些磷酸鞘脂的长链碱基似乎具有含17、18和19个原子的支链和正常饱和碳链；磷酸位于长链碱基的1位。磷酸鞘脂中酰胺连接的脂肪酸组成与二酰基磷酸甘油酯中酯连接脂肪酸的组成不同，14:0、17:0和18:0酸的百分比更高，并且几乎包含细菌脂质中发现的所有单烯脂肪酸。在细菌中发现磷酸鞘脂极为罕见，据我们所知，神经酰胺磷酸甘油以前在自然界中尚未被发现。
