PolysacDB: A comprehensive database of microbial polysaccharide antigens and their antibodies

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Citation: Aithal A, Sharma A, Joshi S, Raghava GPS, Varshney GC (2012) PolysacDB: A Database of Microbial Polysaccharide Antigens and Their Antibodies. PLoS ONE 7(4): e34613. doi:10.1371/journal.pone.0034613
Total Entries - 1

Entry No. - 1   [TOP]
PolysacDB ID2270
Carbohydrate NameY O-polysaccharide   (Drugpedia)
Carbohydrate ClassLipopolysaccharide
MicrobeShigella flexneri   (NCBI Taxonomy)   (Drugpedia)
Basic StructureThe O-LPS consists of a tetrasaccharide repeating unit α-L-Rhap-(1-->2)-α-L-Rhap(1-->3)- . This tetrasaccharide is polymerized and joined by β-1,2 linkages between N-acetyl-D-glucosamine and L-rhamnosyl to form the O-polysaccharide chain
BCSDB StructureN/A
Proposed functionsN/A
Antigenic Nature used to produce antibodiesHeat-killed S. flexnerf bacteria serotype Y
Carrier NameNil
Conjugation MethodNil
AntibodiesAntisera
Antibody type and classN/A
Assay SystemELISA, FARR assay
Cross-reactivityThe polyclonal rabbit anti-group antigen 3.4 antibodies reacted with the lb, 2a, 3b, 4a. 4b, and Y LPS. They did not bind to1a and 5a. In glycoconjugate ELISA's it bound to all saccharides especially abcd- and decasaccharide- BSA antigens
Proposed epitopesAntigen 3,4 seemed to be the epitope
IEDB Epitope76696
Proposed UtilityThis Mab would help in the delineation of the antigenic stucture of Y O polysaccharide
Curator IDAA + AS
Date of Curation16-03-2011
References2438343


Bioinformatics Centre, Institute of Microbial Technology, Sec - 39A, Chandigarh, India - 160036