Structure of O-polysaccharide from the Azospirillum himalayense ptl-3T lipopolysaccharide

IF 2.4 3区化学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY

Carbohydrate Research Pub Date : 2025-03-28 DOI:10.1016/j.carres.2025.109471

Evelina L. Zdorovenko , Elena N. Sigida , Andrey S. Dmitrenok , Svetlana A. Konnova , Yulia P. Fedonenko

引用次数: 0

Abstract

Lipopolysaccharide was extracted with hot aqueous phenol from cells of Azospirillum himalayense ptl-3^T, a diazotrophic Gram-negative bacterium isolated from Himalayan valley soil, India. The O-polysaccharide (OPS) was released by mild acid hydrolysis of the lipopolysaccharide and was structurally characterized by chemical analyses and by 1D and 2D NMR spectroscopy. The following structure of the OPS trisaccharide repeating unit was established.

→3)-α-l-Fucp-(1→3)-α-l-Fucp-(1→3)-α-d-Rhap4NAc-(1→

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来源期刊

Carbohydrate Research 化学-生化与分子生物学

CiteScore

5.00

自引率

3.20%

发文量

183

审稿时长

3.6 weeks

期刊介绍： Carbohydrate Research publishes reports of original research in the following areas of carbohydrate science: action of enzymes, analytical chemistry, biochemistry (biosynthesis, degradation, structural and functional biochemistry, conformation, molecular recognition, enzyme mechanisms, carbohydrate-processing enzymes, including glycosidases and glycosyltransferases), chemical synthesis, isolation of natural products, physicochemical studies, reactions and their mechanisms, the study of structures and stereochemistry, and technological aspects. Papers on polysaccharides should have a "molecular" component; that is a paper on new or modified polysaccharides should include structural information and characterization in addition to the usual studies of rheological properties and the like. A paper on a new, naturally occurring polysaccharide should include structural information, defining monosaccharide components and linkage sequence. Papers devoted wholly or partly to X-ray crystallographic studies, or to computational aspects (molecular mechanics or molecular orbital calculations, simulations via molecular dynamics), will be considered if they meet certain criteria. For computational papers the requirements are that the methods used be specified in sufficient detail to permit replication of the results, and that the conclusions be shown to have relevance to experimental observations - the authors'' own data or data from the literature. Specific directions for the presentation of X-ray data are given below under Results and "discussion".