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 ID1013
Carbohydrate NameGlucurunoxylomannan   (Drugpedia)
Carbohydrate ClassCapsular polysaccharide
MicrobeCryptococcus neoformans serotype A   (NCBI Taxonomy)   (Drugpedia)
Basic StructureThe GXM backbone consists of a linear α(1-->3)-linked mannan substituted at 2-O positions by single residues of either xylose or glucuronic acid
BCSDB Structure116826
Proposed functionsAntiphagocytic ; an important virulence factor
Antigenic Nature used to produce antibodiesPure Capsular polysaccharide
Carrier NameN/A
Conjugation MethodN/A
AntibodiesMab E1
Antibody type and classIgG1
Assay SystemAgglutination with C. neoformans serotype A cells, Radial immunodiffusion, Indirect Immunofluorescence,, ELISA, Competitive binding assays
Cross-reactivityThis antibody was highly specific to serotype A, low levels of cross reactivity to serotypes B and D. Among the other yeasts tested, a cross-reaction was only detected with Trichosporon beigelii.
Proposed epitopesN\A
IEDB Epitope115576
Proposed UtilityCould be useful for fundamental studies on the glucuronoxylomannan structure, as well as for clinical applications such as serotyping and possibly the serological diagnosis of cryptococcosis
Curator IDAA + AS
Date of Curation04-01-2010
ReferencesPMC260404


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