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
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PolysacDB ID2397
Carbohydrate NameLipoteichoic acids (LTAs)   (Drugpedia)
Carbohydrate ClassGlycolipid
Microbe NameStreptococcus mutans BHT   (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 FunctionLipoteichoic 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 NatureEthylene oxide killed cells
Carrier NameNil
Conjugate MethodNil
AntibodiesMab 8A1
Antibody Type ClassIgM
Assay SystemHaemagglutination
Cross ReactivityThis Mab cross-reacted with LTA from L.casei 6375 but was relatively less efficient in its ability to interact with the LTAs of L. fermentum and S. faecium
Proposed EpitopeGlycerophosphate-glycerophosphateglycerol residue backbone seemed to be an important part of the epitope
IEDB EpitopeN/A
Proposed UtilityThese highly specific reagents [Mabs] should prove useful not only for affinity purification of LTAs but also for experiments designed to define the putative role(s) of LTAs in biological processes
Curator IDAA + AS
Date of Curation30-04-2011
ReferencesPMC264251

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PolysacDB ID2398
Carbohydrate NameLipoteichoic acids (LTAs)   (Drugpedia)
Carbohydrate ClassGlycolipid
Microbe NameStreptococcus mutans BHT   (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 FunctionLipoteichoic 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 NatureEthylene oxide killed cells
Carrier NameNil
Conjugate MethodNil
AntibodiesMab 8G10
Antibody Type ClassIgM
Assay SystemHaemagglutination
Cross ReactivityThis Mab cross-reacted with LTA from L.casei 6375 and also to some extent with the LTAs of L. fermentum and S. faecium
Proposed EpitopeGlycerophosphate-glycerophosphateglycerol residue backbone seemed to be an important part of the epitope
IEDB EpitopeN/A
Proposed UtilityThese highly specific reagents [Mabs] should prove useful not only for affinity purification of LTAs but also for experiments designed to define the putative role(s) of LTAs in biological processes
Curator IDAA + AS
Date of Curation30-04-2011
ReferencesPMC264251

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PolysacDB ID2399
Carbohydrate NameLipoteichoic acids (LTAs)   (Drugpedia)
Carbohydrate ClassGlycolipid
Microbe NameStreptococcus mutans BHT   (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 FunctionLipoteichoic 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 NatureEthylene oxide killed cells
Carrier NameNil
Conjugate MethodNil
AntibodiesMab 9F6
Antibody Type ClassIgM
Assay SystemHaemagglutination
Cross ReactivityThis Mab cross-reacted with LTA from L.casei 6375 but was relatively less efficient in its ability to interact with the LTAs of L. fermentum and S. faecium
Proposed EpitopeGlycerophosphate-glycerophosphateglycerol residue backbone seemed to be an important part of the epitope
IEDB EpitopeN/A
Proposed UtilityThese highly specific reagents [Mabs] should prove useful not only for affinity purification of LTAs but also for experiments designed to define the putative role(s) of LTAs in biological processes
Curator IDAA + AS
Date of Curation01-05-2011
ReferencesPMC264251

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PolysacDB ID2400
Carbohydrate NameLipoteichoic acids (LTAs)   (Drugpedia)
Carbohydrate ClassGlycolipid
Microbe NameStreptococcus mutans Ingbritt   (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 FunctionLipoteichoic 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 NatureEthylene oxide killed cells
Carrier NameNil
Conjugate MethodNil
AntibodiesMab 2B5
Antibody Type ClassIgG1
Assay SystemHaemagglutination
Cross ReactivityThis Mab cross-reacted with LTA from L.casei 6375 but was relatively less efficient in its ability to interact with the LTAs of L. fermentum and S. faecium
Proposed EpitopeGlycerophosphate-glycerophosphateglycerol residue backbone seemed to be an important part of the epitope
IEDB EpitopeN/A
Proposed UtilityThese highly specific reagents [Mabs] should prove useful not only for affinity purification of LTAs but also for experiments designed to define the putative role(s) of LTAs in biological processes
Curator IDAA + AS
Date of Curation01-05-2011
ReferencesPMC264251

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PolysacDB ID2401
Carbohydrate NameLipoteichoic acids (LTAs)   (Drugpedia)
Carbohydrate ClassGlycolipid
Microbe NameStreptococcus mutans Ingbritt   (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 FunctionLipoteichoic 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 NatureEthylene oxide killed cells
Carrier NameNil
Conjugate MethodNil
AntibodiesMab 7B11
Antibody Type ClassIgG3
Assay SystemHaemagglutination
Cross ReactivityThis Mab cross-reacted with LTA from L.casei 6375 and L. fermentum but was relatively less efficient in its ability to interact with the LTAs of S. faecium
Proposed EpitopeGlycerophosphate-glycerophosphateglycerol residue backbone seemed to be an important part of the epitope
IEDB EpitopeN/A
Proposed UtilityThese highly specific reagents [Mabs] should prove useful not only for affinity purification of LTAs but also for experiments designed to define the putative role(s) of LTAs in biological processes
Curator IDAA + AS
Date of Curation01-05-2011
ReferencesPMC264251

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PolysacDB ID2402
Carbohydrate NameLipoteichoic acids (LTAs)   (Drugpedia)
Carbohydrate ClassGlycolipid
Microbe NameStreptococcus 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 FunctionLipoteichoic 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 NatureLTA preparation of S. faecium 9790.
Carrier NameNil
Conjugate MethodNil
AntibodiesMab 6D10
Antibody Type ClassIgM
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 EpitopeThis 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

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PolysacDB ID2403
Carbohydrate NameLipoteichoic acids (LTAs)   (Drugpedia)
Carbohydrate ClassGlycolipid
Microbe NameStreptococcus 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 FunctionLipoteichoic 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 NatureLTA preparation of S. faecium 9790.
Carrier NameNil
Conjugate MethodNil
AntibodiesMab 9E5
Antibody Type 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 EpitopeThis 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

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PolysacDB ID2404
Carbohydrate NameLipoteichoic acids (LTAs)   (Drugpedia)
Carbohydrate ClassGlycolipid
Microbe NameStreptococcus 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 FunctionLipoteichoic 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 NatureLTA preparation of S. faecium 9790.
Carrier NameNil
Conjugate MethodNil
AntibodiesMab 13G5
Antibody Type ClassIgM
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 EpitopeThis 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