The glycolipid of Halobacterium sodomense

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Abstract
The glycolipid of the halophilic archaeobacterium Halobacterium sodomense has been analysed by spectroscopic methods including 13C NMR to establish structural details, and has been shown to be a sulphated C20, C20 mannosyl glucosyl diether glycerol. This structure differs from all other known halobacterial glycolipids in having a sulphate substitution at C-2 of the mannose residue, and in being an .alpha.-D(1 .fwdarw. 4)-linked disaccharide.