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 ID1014
Carbohydrate NameGlucan   (Drugpedia)
Carbohydrate ClassCapsular polysaccharide
MicrobeCandida albicans   (NCBI Taxonomy)   (Drugpedia)
Basic StructureGlucans are a heterogeneous group of glucose polymers, consisting of a backbone of β(1-->3)-linked β-D-glucopyranosyl units with β(1-->6)-linked side chains of varying distribution and length
BCSDB Structure125281
Proposed functionsGlucan is an essential cell wall component in pathogenic fungi and plays a critical role in cell viability
Antigenic Nature used to produce antibodiesGlycoconjugates
Carrier NameDiphtheria toxoid CRM 197
Conjugation MethodA 20-fold molar excess of activated polysaccharide was reacted overnight with the protein, at room temperature, in 10 mM phosphate buffer, pH 7.2. The unbound polysaccharide was separated from the glyco-conjugate by ultrafiltration, using Amicon 10-kD filter devices
AntibodiesMab 2G8
Antibody type and classIgG2
Assay SystemFlow Cytometry, confocal microscopy, phospholipase assay, yeast growth inhibition assay
Cross-reactivityThis antibody binds both C. neoformans and Candida albicans
Proposed epitopesN\A
IEDB Epitope76671
Proposed UtilityMAb 2G8 inhibits the in vitro growth of C. neoformans and also exerts anti-C. neoformans protective effects in vivo.
Curator IDAA + AS
Date of Curation04-01-2010
ReferencesPMC2168274


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