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J Biol Chem. 1989 Nov 5;264(31):18667-72.

Structure of a novel glucosamine-containing phosphoglycolipid from Deinococcus radiodurans.

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Department of Microbiology and Infectious Diseases, University of Calgary, Alberta, Canada.


The structure of a major novel lipid from Deinococcus radiodurans has been determined to be 2'-O-(1,2-diacyl-sn-glycero-3-phospho)-3'-O-(alpha-N-acetylglucosaminyl) -N- glyceroyl alkylamine. The lipid was shown to contain a phosphatidic acid backbone by digestion with phospholipase A2 and by hydrolysis with hydrofluoric acid. Using a combination of chemical and NMR spectroscopic techniques, the structure of this lipid was elucidated and compared with that of a similar phosphoglycolipid reported earlier (Anderson, R., and Hansen, K. (1985) J. Biol. Chem. 260, 12219-12223) in which galactose was found in place of N-acetylglucosamine. The fatty acid compositions of the two lipids were similar.

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