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Identification and analysis of a lipopolysaccharide in cell walls of the blue-green alga Anacystis nidulans

✍ Scribed by Weise, G. ;Drews, G. ;Jann, B. ;Jann, K.

Publisher: Springer-Verlag
Year: 1970
Weight: 957 KB
Volume: 71
Category: Article
ISSN: 0003-9276
DOI: 10.1007/bf00412238

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✦ Synopsis

A lipopolysaccharide was isolated from cell walls of Anacystis nidulans by extraction with 450/0 aqueous phenol at 65 ~ and further purified by repeated high speed eentrifugation. It contains 30--400/0 of lipid and about 60o/0 of carbohydrate components. The carbohydrate moiety contains predominantly mannose and smaller amounts of galactose, glucose, fucose, rhamnose, 2-keto-3-deoxyocton~te, glucosamine and a second aminosugar. The latter was identified as a 2-amino-2-deoxyheptose with the gluco-eonfiguration from C 3 to C 7. The lipid moiety contains glucosamine and fatty acids (C22:0, C18:2, C16:0, C12:0 and C 14 :flOH). The lipopolysaecharide has a very low phosphate content and does not contain heptose. It shows low pyrogenicity in rabbits and it is no~ toxic in mice.

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