title: Membranous structure of purified Escherichia coli lipopolysaccharide.
abstract: The ultrastructure of the purified and lyophilized endotoxin from Escherichia coli O111 was observed by ultrathin sectioning. Onion-like globular membrane structures were observed in addition to rod-like and ribbon-like structures, indicating the existence of a globular membrane structure even in the dried state.
mesh_terms: D000085:Acetates; D011232:Chemical Precipitation; D003956:Dialysis; D004731:Endotoxins / Q000302:isolation & purification; D004926:Escherichia coli / Q000166:cytology* / Q000254:growth & development; D000431:Ethanol; D005612:Freeze Drying; D008070:Lipopolysaccharides / Q000302:isolation & purification; D008854:Microscopy, Electron; D010636:Phenols; D011135:Polysaccharides, Bacterial; D013194:Staining and Labeling; D014501:Uranium; D014867:Water
chemical_list: D000085:Acetates; D004731:Endotoxins; D008070:Lipopolysaccharides; D010636:Phenols; D011135:Polysaccharides, Bacterial; D014867:Water; D000431:Ethanol; D014501:Uranium