Biomaterial Database

Isolation and characterization of an O-methylglucose-containing lipopolysaccharide produced by Nocardia otitidis-caviarum. 1986

M T Pommier, and G Michel

The low-Mr lipopolysaccharide produced by Nocardia otitidis-cavirum is composed of 6-O-methyl-D-glucose (11 mol), D-glucose (8 mol) and 3-O-methyl-D-glucose (1 mol). Glyceric acid was also found as a constituent. Methylation and periodate oxidation analyses suggested that the backbone was formed by (1----4)-linked glucose and O-methylglucose residues. Glucose (1 mol) and 6-O-methylglucose (1 mol) served as branching points. Acetic acid was the major acyl substituent esterifying glucose residues. The lipopolysaccharide was isolated from the cytoplasmic fraction. Several other Nocardia strains were examined; all possessed the same lipopolysaccharide in their extracts.

UI	MeSH Term	Description	Entries
D008070	Lipopolysaccharides	Lipid-containing polysaccharides which are endotoxins and important group-specific antigens. They are often derived from the cell wall of gram-negative bacteria and induce immunoglobulin secretion. The lipopolysaccharide molecule consists of three parts: LIPID A, core polysaccharide, and O-specific chains (O ANTIGENS). When derived from Escherichia coli, lipopolysaccharides serve as polyclonal B-cell mitogens commonly used in laboratory immunology. (From Dorland, 28th ed)	Lipopolysaccharide,Lipoglycans
D008745	Methylation	Addition of methyl groups. In histo-chemistry methylation is used to esterify carboxyl groups and remove sulfate groups by treating tissue sections with hot methanol in the presence of hydrochloric acid. (From Stedman, 25th ed)	Methylations
D008757	Methylglucosides		Methylglucopyranosides
D009615	Nocardia	A genus of gram-positive, aerobic bacteria whose species are widely distributed and are abundant in soil. Some strains are pathogenic opportunists for humans and animals.	Micropolyspora
D002848	Chromatography, DEAE-Cellulose	A type of ion exchange chromatography using diethylaminoethyl cellulose (DEAE-CELLULOSE) as a positively charged resin. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)	DEAE-Cellulose Chromatography,Chromatography, DEAE Cellulose,DEAE Cellulose Chromatography
D019325	3-O-Methylglucose	A non-metabolizable glucose analogue that is not phosphorylated by hexokinase. 3-O-Methylglucose is used as a marker to assess glucose transport by evaluating its uptake within various cells and organ systems. (J Neurochem 1993;60(4):1498-504)	3-O-Methyl-D-Glucose,3 O Methyl D Glucose,3 O Methylglucose