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 ID1901
Carbohydrate NameLipopolysaccharide   (Drugpedia)
Carbohydrate ClassLipopolysaccharide
MicrobePasteurella haemolytica serotype 1   (NCBI Taxonomy)   (Drugpedia)
Basic StructureLPS molecule is composed of three regions consisting of lipid A, core oligosaccharides, and O-antigen polysaccharides. The O-antigen part consists of the following residues : -3)-β-D-Galp-(1-->3)-β-D-GalpNAc-(1-->4)-β-D-Galp-(1-. The core oligosaccharide part consists of the following residues : β-D-Galp-(1-->7)-D-gro-α-D-manHepp-(1-->6)-D-gro-α-D-manHepp-(1-->6)-β-D-Glcp-(1-->4)-L-gro [branched to L-gro-α-D-manHepp-(1-->2)-L-gro-α-D-manHepp-(1-->3)] and [branched to α-D-Glcp-(1-->6)] -α-D-manHepp-(1--/lipid A
BCSDB StructureN/A
Proposed functionsLPS is well known for its biological activities, including modification of metabolic activity and phagocytic function, alteration of migration of neutrophils and macrophages, and mitogenesis of lymphocytes
Antigenic Nature used to produce antibodiesP. hemolytica extract
Carrier NameNil
Conjugation MethodNil
AntibodiesMab H6B5
Antibody type and classIgG3
Assay SystemELISA, immunoblotting
Cross-reactivityThis MAb had intense cross-reactivity among P. haemolytica serotypes 1, 5, 6, 7, 8, and 12 and less reactivity with serotypes 4 and 14 but did not react with LPS from any other gram negative bacteria tested
Proposed epitopesN/A
IEDB EpitopeN/A
Proposed UtilityThis MAb to the LPS of P. haemolytica could be used to help further characterize the role of LPS in the pneumonic pasteurellosis disease process, including common binding sites and epitopes within the LPS molecule. It could be used in a screening kit, such as latex bead agglutination, to rapidly determine the presence of P. haemolytica in pneumonic lesions
Curator IDAA + AS
Date of Curation25-11-2010
ReferencesPMC266479


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