Novel polar lipids of halophilic eubacterium Planococcus H8 and archaeon Haloferax volcanii

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DOIResolve DOI: http://doi.org/10.1016/j.bbalip.2003.08.001
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TypeArticle
Journal titleBiochimica et Biophysica Acta
Volume1633
Issue3
Pages179188; # of pages: 10
Subjectsulfoglycolipid; sulfoquinovosyldiacylglycerol; archaeal cardiolipin; Planococcus H8; Haloferax volcanii
AbstractAs part of a study to identify novel lipids with immune adjuvant activity, a structural comparison was made between the polar lipids from two halophiles, an archaeon Haloferax volcanii and a eubacterium Planococcus H8. H. volcanii polar lipid extracts consisted of 44% archaetidylglycerol methylphosphate, 35% archaetidylglycerol, 4.7% of archaeal cardiolipin, 2.5% archaetidic acid, and 14% sulfated glycolipids 1 and 2. Nuclear magnetic resonance (NMR) and Fast atom bombardment mass spectrometry (FAB MS) data determined the glycolipids to be 6-HSO(3)-D-Man(p)-alpha1-2-D-Glc(p)-alpha1,1-[sn-2,3-di-O-phytanylglycerol ] and a novel glycocardiolipin 6'-HSO(3)-D-Man(p)-alpha1-2-D-Glc(p)-alpha1,1-[sn-2,3-di-O-phytanylglycero l]-6-[phospho-sn-2,3-di-O-phytanylglycerol]. The polar lipids of Planococcus H8 consisted of 49% saturated phosphatidylglycerol and cardiolipin (9:1, w/w), and surprisingly 51% of the photosynthetic membrane lipid sulfoquinovosyldiacylglycerol (SQDG). This study documents archaeal cardiolipin and a novel glycocardiolipin in H. volcanii (lacking purple membrane), and is the first report of SQDG in a non-photosynthetic, halophilic bacterium
Publication date
LanguageEnglish
AffiliationNRC Institute for Biological Sciences; National Research Council Canada
Peer reviewedNo
NRC numberSPROTT2003A
NPARC number9360592
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Record identifieraed4bd20-ef28-45a6-bb5d-9f027163037b
Record created2009-07-10
Record modified2016-05-09
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