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 ID2434
Carbohydrate NameCapsular polysaccharide   (Drugpedia)
Carbohydrate ClassCapsular polysaccharide
MicrobeStreptococcus suis serotype 2 reference strain S735   (NCBI Taxonomy)   (Drugpedia)
Basic StructureN/A
BCSDB StructureN/A
Proposed functionsIt is an important virulence factor
Antigenic Nature used to produce antibodiesWhole cells
Carrier NameNil
Conjugation MethodNil
AntibodiesMab Z3
Antibody type and classIgG2b
Assay SystemDot-ELISA, immunoblotting, electron microscopy, Opsonization and phagocytic assay, Protection assay, Bacterial clearance test
Cross-reactivityThis Mab reacted only with reference strains and field isolates of S. suis serotypes 1,2 and 1/2
Proposed epitopesMab Z3 reacts specifically with the sialic acid moiety of the capsule, a common constituent of the polysaccharidic capsular material of the three capsular types
IEDB EpitopeN/A
Proposed UtilityThis Mab was able to stabilize the capsule as shown by electron microscopy. Purified mAb Z3 was shown to significantly increase the rate of phagocytosis of S. suis cells by porcine monocytes and to activate the clearance of bacteria from the circulation in experimentally infected mice. mAb Z3 only offered partial protection to mice challenged with a minimal lethal dose
Curator IDAA + AS
Date of Curation12-05-2011
References9387239


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