✦ LIBER ✦

High performance liquid chromatography and fast atom bombardment mass spectrometry of unusual branched and unsaturated phospholipid molecular species

✍ Scribed by Amitava Dasgupta; Eser Ayanoglu; Kenneth B. Tomer; Carl Djerassi

Publisher: Elsevier Science
Year: 1987
Tongue: English
Weight: 538 KB
Volume: 43
Category: Article
ISSN: 0009-3084
DOI: 10.1016/0009-3084(87)90029-6

No coin nor oath required. For personal study only.

✦ Synopsis

The unusual symmetrical molecular species 1,2-di-3,7,11,15-tetramethylhexadecanoyl-sn-glycero-3-phosphoglyce rol, 1,2-di-5,8,11,14-docosatetraenoyl-sn-glycero-3-phosphocholine, 1,2-di-5,9,19-octacosatrienoyl-sn-glycero-3-phosphoethanolamine, and 1,2-di-5,9,23-triacontatrienoyl-sn-glycero-3-phosphoethanolamine were isolated from the marine sponges Axinella verrucosa, Higginsia tethyoides, Tethya aurantia and Aplysina fistularis by HPLC and studied by fast atom bombardment (FAB) mass spectrometry. In addition to molecular weights, branching and double bonds were located in the fatty acyl chains of the intact phospholipid molecules, using FAB either in a positive or negative mode. Some mass spectral results were obtained on enriched phospholipid fractions rather than pure molecular species using MS/MS.

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