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 ID2307
Carbohydrate NameLipopolysaccharide   (Drugpedia)
Carbohydrate ClassLipopolysaccharide
MicrobeShigella flexneri serotype 2a   (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-->. It is characterized by a branching glucose residue linked to the third rhamnose.
BCSDB Structure9558
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 C1-7
Antibody type and classIgG3
Assay SystemELISA, protection experiments
Cross-reactivityThis Mab cross-reacted with S. flexneri serotype X, Y, 5a, 5b, 2a, 2b, 1a, 3a
Proposed epitopesThis Mab recognized the pentasaccharide L-rhamnose-L-rhamnose-α-D-glucose-L-rhamnose-N-acetyl-D-glucosamine
IEDB Epitope76663
Proposed UtilityN/A
Curator IDAA + AS
Date of Curation27-03-2011
References16424198


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