๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Structural studies of a novel exopolysaccharide produced by a mutant of Rhizobium meliloti strain Rm1021

โœ Scribed by Guor-Rong Her; Jane Glazebrook; Graham C. Walker; Vernon N. Reinhold

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
601 KB
Volume
198
Category
Article
ISSN
0008-6215

No coin nor oath required. For personal study only.

โœฆ Synopsis

The structure of a novel expolysaccharide obtained from a mutant of Rhizobium meliloti strain Rm1021 was elucidated by a combination of enzymic, chemical, and spectroscopic methods. The polysaccharide is composed of a disaccharide repeating-unit, p-D-Glcp-( 133)-~-D-Galp-( l~3), having a 6-0-acetyl group attached to most D-glucose residues and a 4,6-~-(l-carboxyethylidene) group attached to every D-galactose residue.

๐Ÿ“œ SIMILAR VOLUMES

Structural characterization and rheologi
Structural characterization and rheological properties of an extracellular glucuronan produced by a Rhizobium meliloti M5N1 mutant strain
โœ Alain Heyraud; Josiane Courtois; Luciana Dantas; Philippe Colin-Morel; Bernard C ๐Ÿ“‚ Article ๐Ÿ“… 1993 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 511 KB

The mutant strain M5Nl C.S. (NCIMB 40472) of Rhizobium meliloti M5Nl is able to produce during fermentation a partially acetylated extracellular (1 --f 4)fl-o-glucuronan. At low concentration (1 g.l-'1, in the presence of monovalent cations, this new glucuronate behaves as a thickening agent, wherea

NMR studies of acetan and the related ba
NMR studies of acetan and the related bacterial polysaccharide, CR1/4, produced by a mutant strain of Acetobacter xylinum
โœ Ian J. Colquhoun; Marianne Defernez; Victor J. Morris ๐Ÿ“‚ Article ๐Ÿ“… 1995 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 643 KB

Acetan is a bacterial polysaccharide produced by Acetobacter xylinum NRRL B42. Chemical mutagenesis of A.xylinum allowed selection of a mutant strain which produced a new polysaccharide, CR1/4. 2D NMR methods have been used to assign the 1H and 13C spectra of the two polysaccharides and to determine

Structure determination of a novel uroni
Structure determination of a novel uronic acid residue isolated from the exopolysaccharide produced by a bacterium originating from deep sea hydrothermal vents
โœ Guy Dubreucq; Bruno Domon; Bernard Fournet ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 383 KB

The exopolysaccharide produced by the bacterium Alteromonas sp. strain 1644 originating from deep sea hydrothermal vents was shown to contain a novel glucuronic acid derivatives: 3-O-[(R)-1-carboxyethyl]-D-glucuronic acid. The structure of this compound was established on the basis of mass spectrome