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 ID1611
Carbohydrate NameN-propionyl substituted Neisseria meningitidis group B capsular polysaccharide    (Drugpedia)
Carbohydrate ClassCapsular polysaccharide
MicrobeNeisseria meningitidis Serogroup B   (NCBI Taxonomy)   (Drugpedia)
Basic StructureIt is a homopolymer of α(2-->8) sialic acid
BCSDB StructureN/A
Proposed functionsThis capsular polysaccharide is an important virulence determinant. Serum antibodies to the group B polysaccharide confers protection against disease by activating complement-mediated bacteriolysis and/or opsonization. It leads to immunologic tolerance induced by prenatal exposure to host polysialyated glycoproteins
Antigenic Nature used to produce antibodiesWhole cells
Carrier NameNil
Conjugation MethodNil
AntibodiesMab 735D4
Antibody type and classIgG2a
Assay SystemELISA, Immunoelectrophoresis and immunodiffusion
Cross-reactivityThis Mab reacted with with all E. coli K1 and group B meningococcal strains tested but did not react with E. coli strains having capsular types K12, K13, K14, and K92; and group A and C meningococci
Proposed epitopesThe epitope was proposed to consist of repeating α(2-->8)-linked Neu5Ac units
IEDB EpitopeN/A
Proposed UtilityThis antibody is an important addition to the analyticaln tools available for the study of the structure and function of the E. coli K1 and meningococcal B capsules
Curator IDAA + AS
Date of Curation22-09-2010
References397221


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