CarboDB Core oligosaccharide 2292

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Contents

Carbohydrate Name

Core oligosaccharide

Carbohydrate Class

Core oligosaccharide [LPS]

Source Microbe

Shigeila sonnei serotype D

Basic Structure

Lipopolysaccharide (LPS) molecules consist of three structural regions: a lipid A region, which anchors the molecule in the bacterial outer membrane; an intermediate core region; and a distal, serotype-specific O-polysaccharide chain (O chain or O-antigen). Whereas the chemical composition and structure of 0 chains are highly variable, the core moiety is more conserved. Seven types of LPS core structures, namely, Ra, Ri to R4, K-12, and B, have been found in members of the family Enterobacteriaceae


Proposed functions

N/A

Antigenic Nature used to produce antibodies

Heat killed cells

Carrier Name

nil

Conjugation Method

nil

Antibodies

Mab Sh9R

Antibody type and class

IgM

Assay System

ELISA and immunoblotting

Cross-reactivity

only strains reported to have LPS molecules with an R1-type core structure were recognized, namely, S. sonnei, S. boydii type 3, S. flexneri type 6, a control E. coli R1 strain (HF4704), and an E. coli 09 isolate

Proposed epitopes

Terminal hexose residues may form an important part of the epitope

Proposed Utility

This Mab has been used to analyze clinical isolates and a hybrid Salmonella typhi strain for their expression of the corresponding LPS moieties. In addition to their use in the screening of candidate vaccine strains, the new MAb provide a powerful tool for epidemiological and phylogenetic studies of natural enterobacterial populations

Weblink

PubMed Central

External Links