Structure of the sugar-phosphate moiety of lipid A from lipooligosaccharide of Neisseria meningitidis group B, strain BC5S No. 125. Hydrolytic stability of phosphate and pyrophosphate substituents.
Arch Microbiol
; 157(2): 131-4, 1992.
Article
en En
| MEDLINE
| ID: mdl-1312816
ABSTRACT
On the basis of chemical and NMR data the partial structure of lipid A from lipooligosaccharide (LOS) of Neisseria meningitidis group B, strain BC5S No 125 was established. Lipid A consisted of disaccharide 2-deoxy-6-O-[2-deoxy-2-(3-hydroxytetradecanoylamino)- beta-gluco-pyranosyl]-2-(3-hydroxytetradecanoylamino)- alpha-glucopyranose carrying the beta-(2-aminoethyl)pyrophosphate residue at 0-4' and the pyrophosphate or phosphate residue at 0-1. On hydrolysis of the acidic form of LOS with 1% acetic acid the substituent at 0-1 was practically completely removed whereas that at 0-4' was stable. The analogous hydrolysis of the Mg-salt of LOS was accompanied by splitting off the pyrophosphate linkage in the substituent at 0-4'. Hydrolysis of LOS at pH 4.5 in the presence of SDS led mainly to a lipid A preparation retaining both pyrophosphate residues.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Fosfatos
/
Lipopolisacáridos
/
Difosfatos
/
Lípido A
/
Neisseria meningitidis
Idioma:
En
Revista:
Arch Microbiol
Año:
1992
Tipo del documento:
Article