PolysacDB: A comprehensive database of microbial polysaccharide antigens and their antibodies

Home | Search | Advance Search | Browse | Online Submission | Documentation & FAQ | Team | Contact us

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 ID2280
Carbohydrate NameO-polysaccharide   (Drugpedia)
Carbohydrate ClassLipopolysaccharide
MicrobeShigella flexneri serotype Y   (NCBI Taxonomy)   (Drugpedia)
Basic StructureChemically, the O-antigen is a polysaccharide chain of variable length, built up by repetitive sequences of tetra- to hexasaccharides. It consists of a basic tetrasaccharide repeating unit consisting of three rhamnoses and one N-acetylglucosamine was common to all S. flexneri strains (except serotype 17): -2)-α-L-Rhap-(1-->2)-α-L-Rhap-(1-->3)-α-L-Rhap-(1-->3)-β-D-GlcpNAc-(1-->
BCSDB Structure3226
Proposed functionsLPS plays an important virulence role based on its antiphagocytic and endotoxic properties
Antigenic Nature used to produce antibodiesWhole cells
Carrier NameNil
Conjugation MethodNil
AntibodiesMab MASF B
Antibody type and classIgM
Assay SystemELISA
Cross-reactivityThe MASF B antibody reacted with all S. flexneri LPSs tested except 4bR, the rough mutant
Proposed epitopesα-L-Rhap-1-->2-α-L-Rha residues seemed to be the part of the epitope
IEDB Epitope76891
Proposed UtilityThis Mab may prove to be valuable reagents in the studies of protective immunity against Shigella bacteria
Curator IDAA + AS
Date of Curation17-03-2011
References2437036


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