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 ID2403
Carbohydrate NameLipoteichoic acids (LTAs)   (Drugpedia)
Carbohydrate ClassGlycolipid
MicrobeStreptococcus faecium 9790   (NCBI Taxonomy)   (Drugpedia)
Basic StructureLTAs are amphiphiles composed of a membrane lipid or glycolipid which is covalently linked to a linear chain of 15 to 30 polyglycerophosphate (PGP) units
BCSDB StructureN/A
Proposed functionsLipoteichoic acids (LTAs) are present on the surfaces of a majority of gram-positive bacteria and have been shown to constitute 1 to 2% of the dry weight of several organisms
Antigenic Nature used to produce antibodiesLTA preparation of S. faecium 9790.
Carrier NameNil
Conjugation MethodNil
AntibodiesMab 9E5
Antibody type and classIgG1
Assay SystemHaemagglutination
Cross-reactivityThis MAbs agglutinated SRBCs sensitized with S. faecium LTA but failed to agglutinate SRBCs sensitized with the LTAs from the other bacterial species
Proposed epitopesThis MAb was thought to be specific for the kojibiosyl substituents (glucose α-1-->2 glucose) present on the LTA of group D streptococci
IEDB EpitopeN/A
Proposed UtilityThe anti-kojibiosyl MAbs would be useful as a specific reagent for identifying group D streptococci
Curator IDAA + AS
Date of Curation01-05-2011
ReferencesPMC264251


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