Identification of acylated glycoglycerolipids from a cyanobacterium, Synechocystis sp., by tandem mass spectrometry
Identification of acylated glycoglycerolipids from a cyanobacterium, Synechocystis sp., by tandem mass spectrometry
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DOI：
10.1007/s11745-999-0432-2
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发表时间：
1999-08-01
期刊：
影响因子：
1.9
通讯作者：
Kim, MS
中科院分区：
文献类型：
--
作者：
Kim, YH;Choi, JS;Kim, MS
从集胞蓝藻总脂提取物中鉴定出酰化甘油脂类。PCC 6803。这些化合物在双半乳糖基单甘油和双半乳糖基甘油的末端糖基部分的C-6位上具有棕榈酰基酯化的羟基。它们的结构用串联质谱仪和快原子轰击电离相结合的方法完成。酰化双半乳糖单酰甘油具有1-hydroxy-2-palmitoyl-3-O-[(6-O-palmitoyl)-alpha-D-galactopyranosyl-(1-->；6)-β-D-半乳糖基]-sn-甘油的结构。这种化合物以前没有报道过。
Acylated glycoglycerolipids were identified in the total lipid extract from cyanobacterium Synechocystis sp. PCC 6803. These compounds have a palmitoyl group esterified to the hydroxyl group at the C-6 position of the terminal glycosyl moiety of digalactosyl monoacylglycerol and digalactosyl diacylglycerol. Their structural elucidation was accomplished by tandem mass spectrometry coupled with fast atom bombardment ionization. Acylated digalactosyl monoacyl-glycerol has a structure of 1-hydroxy-2-palmitoyl-3-O-[(6-O-palmitoyl)-alpha-D-galactopyranosyl-(1 --> 6)-beta-D-galactopyranosyl]-sn-glycerol. This compound has not been reported previously.