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 ID1039
Carbohydrate NameCapsular polysaccharides K5   (Drugpedia)
Carbohydrate ClassCapsular polysaccharide
MicrobeEscherichia coli   (NCBI Taxonomy)   (Drugpedia)
Basic StructureCapsular polysacchirides K5 is disaccharide with repeating unit 4-β-GlcUA(1-->4)-α-GlcNAc
BCSDB StructureN/A
Proposed functionsCapsular polysaccharides are responsible for pathogen`s virulence
Antigenic Nature used to produce antibodiesWhole formalinized E.coli cells.
Carrier NameN/A
Conjugation MethodN/A
AntibodiesMab 865
Antibody type and classIgM
Assay SystemIndirect ELISA, Immunoblot analysis
Cross-reactivityThis antibody was cross-reactive with ECA of E.coli and S.typhimurium strains.
Proposed epitopes4-β-GlcUA(1-->4)-α-GlcNAc
IEDB EpitopeN/A
Proposed UtilityReaction pattern of Mab with whole cell bacteria indicate that ECA and outer core in encapsulated bacteria are not readily accessible to antibodies.This suggests that these common envelop structures may not be useful antigens for vaccine development.
Curator IDAA + AS
Date of Curation11-01-2010
ReferencesPMC261975


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