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 ID1999
Carbohydrate NameDisaccharide   (Drugpedia)
Carbohydrate ClassCapsular polysaccharide
Microbe NameStreptococcus pneumoniae serotype 6B   (NCBI Taxonomy)   (Drugpedia)
Basic StructureThe structure of the disaccharide is α-L-Rhap-(1-->4)-D-Rib-ol-[5-->P-->(CH2)3NH2]
BCSDB Structure5205
Proposed FunctionN/A
Antigenic NatureGlycoconjugates
Carrier NameKeyhole limpet hemocyanin
Conjugate MethodThe saccharides were coupled via the 3-aminopropyl spacer to carrier protein KLH in a stepwise reaction: the amino-terminal groups of the OS fragment and KLH were activated by S acetylation and Br acetylation, respectively, and coupled via a thioether linkage
AntibodiesAntisera
Antibody Type ClassN/A
Assay SystemELISA, phagocytosis assays and protection experiments
Cross ReactivityThis antisera was specific to capsular polysaccharide of strain 6B and did not cross-react with 6A strains
Proposed EpitopeN/A
IEDB EpitopeN/A
Proposed UtilityThis antisera could passively protect mice against a 6B challenge
Curator IDAA + AS
Date of Curation14-12-2010
ReferencesPMC97953

Bioinformatics Centre, Institute of Microbial Technology, Sec - 39A, Chandigarh, India - 160036