[Structure of the repeating link of the acid polysaccharide of Alteromonas haloplanktis KMM 156].
An acidic capsular and an O-specific polysaccharide were isolated from the marine microorganism Alteromonas haloplanktis KMM 156. Both polysaccharides have the identical structure and are built up of tetrasaccharide repeating units, containing two residues of L-rhamnose as well as a 2-acetamido-2-deoxy-D-glucose and a 3-O-[(R)-1-carboxyethyl]-D-glucose (Glc3Lac) residue. On the basis of methylation studies, 1H- and 13C-NMR-spectroscopy including nuclear Overhauser effect and two-dimensional heteronuclear 13C/1H correlation spectroscopy, the following structure was suggested for the polysaccharide repeating unit: [formula: see text]
Gorshkova
R P
RP
Nazarenko
E L
EL
Zubkov
V A
VA
Ivanova
E P
EP
Ovodov
Iu S
IuS
Shashkov
A S
AS
Knirel'
Iu A
IuA
D002240:Carbohydrate Sequence; D006088:Gram-Negative Aerobic Bacteria / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D011135:Polysaccharides, Bacterial / Q000737:chemistry*
D011135:Polysaccharides, Bacterial
Struktura povtoriaiushchegosia zvena kislogo polisakharida Alteromonas haloplaktis KMM 156.