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
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PolysacDB ID1015
Carbohydrate NameBeta-glucan   (Drugpedia)
Carbohydrate ClassCapsular polysaccharide
Microbe NameCandida 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 FunctionGlucan is an essential cell wall component in pathogenic fungi and plays a critical role in cell viability
Antigenic NatureGlycoconjugates
Carrier NameDiphtheria toxoid CRM 197
Conjugate 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
AntibodiesPolysera
Antibody Type ClassIgG
Assay SystemInvivo protection assays, growth inhibition assays, indirect ELISA
Cross ReactivityN/A
Proposed EpitopeN\A
IEDB Epitope76671
Proposed UtilityThe Lam-CRM conjugate is immunogenic and protective against systemic candidiasis in mice. The antibodies induce passive protection in mice against systemic and mucosal candidiasis
Curator IDAA + AS
Date of Curation04-01-2010
ReferencesPMC2212864

Department of Computational Biology, Indraprastha Institute of Information Technology, Sec - 39A, New Delhi, India - 110020