PolysacDB O-polysaccharide 2320
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[edit] Carbohydrate Name
O-polysaccharide
[edit] Carbohydrate Class
O-polysaccharide [LPS]
[edit] Source Microbe
Shigella flexneri serotype 1b
[edit] Basic Structure
Chemically, the O-antigen is a polysaccharide chain of variable length, built up by repetitive sequences of tetra- to hexasaccharides. It consists of a basic tetrasaccharide repeating unit consisting of three rhamnoses and one N-acetylglucosamine was common to all S. flexneri strains (except serotype 17): -2)-α-L-Rhap-(1-->2)-α-L-Rhap-(1-->3)-α-L-Rhap-(1-->3)-β-D-GlcpNAc-(1-->
[edit] Proposed functions
LPS plays an important virulence role based on its antiphagocytic and endotoxic properties
[edit] Antigenic Nature used to produce antibodies
Heat killed cells
[edit] Carrier Name
nil
[edit] Conjugation Method
nil
[edit] Antibodies
Mab MASF 111:6,7,8
[edit] Antibody type and class
N/A
[edit] Assay System
immunoblotting, enzyme-linked immunosorbent assay (ELISA), hemagglutination, and coagglutination
[edit] Cross-reactivity
The type 111:6,7,8 O-antigen-specific antibodies were specific for S. flexneri serotype 3a
[edit] Proposed epitopes
These antibodies seemed to require the simultaneous presence of all three antigens for binding i.e. type III antigen and the group 6 and 7,8 antigens
[edit] Proposed Utility
This Mab can be used for detection and identification of shigella flexneri species
