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 - 2

Entry No. - 1   [TOP]
PolysacDB ID1165
Carbohydrate NameLipopolysaccharide   (Drugpedia)
Carbohydrate ClassLipopolysaccharide
MicrobeBordetella pertusis 1414   (NCBI Taxonomy)   (Drugpedia)
Basic StructureB. pertusis LPS is resolved electrophoretically into two bands, a slowly migrating band designated LOS A and a fast-migrating band designated LOS B. These two species differ in molecular weight as three N-acetyl amino sugars found on LOS A are not present on LOS B
BCSDB StructureN/A
Proposed functionsThe LOS of B. pertussis exhibits biological activities similar to those of endotoxins from other gram-negative bacteria, including pyrogenicity, toxicity, induction of the Shwartzman reaction, induction of tumor necrosis factor production, and adjuvant properties
Antigenic Nature used to produce antibodiesB. pertusis LPS
Carrier NameNil
Conjugation MethodNil
AntibodiesMab D7
Antibody type and classIgG3
Assay SystemELISA and Immunostaining
Cross-reactivityDid not cross-react with the B. pertusis variant strain A101
Proposed epitopesThe epitope recognized by D7 is affected by the addition of the O-side chain and that a portion of the distal trisaccharide could be involved in this epitope. This suggests therefore that this epitope may consist of the FucN(Ac)Me-->GlcN disaccharide
IEDB EpitopeN/A
Proposed UtilityThis Mab can be useful for rapid typing of Bordetella in clinical isolates and can be used to detect antigenic modifications in LPSs from variant B. pertassis strains, or from related Bordetella species (B. parapertassis, B. bronchiseptica
Curator IDAA + AS
Date of Curation24-02-2010
References8936324


Entry No. - 2   [TOP]
PolysacDB ID2584
Carbohydrate NameO-polysaccharide   (Drugpedia)
Carbohydrate ClassLipopolysaccharide
MicrobeRhizobium leguminosarum biovar trifolii strain 162X95   (NCBI Taxonomy)   (Drugpedia)
Basic StructureN/A
BCSDB StructureN/A
Proposed functionsStructural modifications of Rhizobium LPS may play an important role in the adaptation of endosymbiotic rhizobia to the surrounding microenvironment
Antigenic Nature used to produce antibodiesHeat treated cells
Carrier NameNil
Conjugation MethodNil
AntibodiesMab D7
Antibody type and classIgG3
Assay SystemCompetitive enzyme-linked immunosorbent assay, ELISA, immunoblotting
Cross-reactivityThis MAb to the O antigen of R. trifolii 162X95 has been shown to be specific for six strains of R. trifolii only
Proposed epitopesN/A
IEDB EpitopeN/A
Proposed UtilityThis Mab can be used for immunodetection of R. trifolii
Curator IDAA + AS
Date of Curation08-07-2011
ReferencesPMC184596


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