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 - 2

Entry No. - 1   [TOP]
PolysacDB ID1115
Carbohydrate NameO-polysaccharide   (Drugpedia)
Carbohydrate ClassLipopolysaccharide
MicrobeActinobacillus pleuropneumoniae serotype 1 shope 4074   (NCBI Taxonomy)   (Drugpedia)
Basic StructureThe O-polsaccharide structure is as follows :
--6)-α-D-Glcp-(1-->2)-α-L-Rhap-(l-->2)-α-L-Rhap-(1--. which is linked to 1-D-GlcpNAc chains on its rhamnopyranosyl residue via 1-->3 linkage.
BCSDB StructureN/A
Proposed functionsLPS is an important virulence factor. It molecule plays an important role in adherence of the bacterium to porcine respiratory tract cells and mucus
Antigenic Nature used to produce antibodiesFormalin-fixed A. pleuropneumoniae serotype 1 cells (strain Shope 4074]
Carrier NameNil
Conjugation MethodNil
AntibodiesMab 3E10
Antibody type and classIgG2b
Assay SystemELISA, Rapid Dot ELISA and Slide agglutination test
Cross-reactivityThis antibody cross-reacted with reference strains of serotypes 1, 9 and 11
Proposed epitopesN/A
IEDB EpitopeN/A
Proposed UtilityThis Mab may provide reliable specific tools for rapid serological diagnosis of animals infected with serotypes 1, 9 and 11 by inhibition or competition ELISA. Moreover, these mAbs could be useful as a complementary specific reagents to polyclonal sera for serotyping of field isolates belonging to A. pleuropneumoniae serotypes 1, 9 and 11
Curator IDAA + AS
Date of Curation03-02-2010
References9116634


Entry No. - 2   [TOP]
PolysacDB ID2566
Carbohydrate NameLipopolysaccharide   (Drugpedia)
Carbohydrate ClassLipopolysaccharide
MicrobeXanthomonas hyacinthi S148   (NCBI Taxonomy)   (Drugpedia)
Basic StructureThe Xanthomonas LPS showed a predominance of mannose (Man), glucose (Glc), galacturonic acid (GalA), and N-acetylglucosamine (GlcNAc) residues
BCSDB StructureN/A
Proposed functionsN/A
Antigenic Nature used to produce antibodiesCrude cell wall preparation and purified fimbriae
Carrier NameNil
Conjugation MethodNil
AntibodiesMab 3E10
Antibody type and classIgG3
Assay SystemImmunoblotting, immunofluorescence, enzyme-linked immunosorbent assay (ELISA), and immunoelectron microscopy
Cross-reactivityThis Mab cross-reacted with all X. hyacinthi strains. No cross-reaction was found with 27 other Xanthomonas pathovars tested or with 14 other bacterial species from other genera, such as Erwinia and Pseudomonas
Proposed epitopesThe O antigen was found to consist of rhamnose and fucose in a 2:1 molar ratio. This Mab recognized both R-LPS and S-LPS
IEDB EpitopeN/A
Proposed UtilityThis Mab could be useful for structural studies, for detection purposes in commercial and agricultural settings, and for serological typing purposes
Curator IDAA + AS
Date of Curation01-07-2011
References10473431


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