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| PolysacDB ID | 2318 |
| Carbohydrate Name | Core oligosaccharide (Drugpedia) |
| Carbohydrate Class | Lipopolysaccharide |
| Microbe | Shigella flexneri serotype 1b (NCBI Taxonomy) (Drugpedia) |
| Basic Structure | The core is a single sequence of heptoses and hexoses |
| BCSDB Structure | N/A |
| Proposed functions | LPS plays an important virulence role based on its antiphagocytic and endotoxic properties |
| Antigenic Nature used to produce antibodies | Heat killed cells |
| Carrier Name | Nil |
| Conjugation Method | Nil |
| Antibodies | Mab MASF R3 core-1 |
| Antibody type and class | IgG2a |
| Assay System | Immunoblotting, enzyme-linked immunosorbent assay (ELISA), hemagglutination, and coagglutination |
| Cross-reactivity | The core-specific antibodies were shown to be specific for the Escherichia coli R3 core, which all S. flexneri LPSs were found to have, except for S. flexneri serotype 6 LPS |
| Proposed epitopes | N/A |
| IEDB Epitope | N/A |
| Proposed Utility | This Mab can be used for detection and identification of shigella flexneri species |
| Curator ID | AA + AS |
| Date of Curation | 31-03-2011 |
| References | 2424839 |
| PolysacDB ID | 2319 |
| Carbohydrate Name | O-polysaccharide (Drugpedia) |
| Carbohydrate Class | Lipopolysaccharide |
| Microbe | Shigella flexneri serotype 1b (NCBI Taxonomy) (Drugpedia) |
| Basic Structure | Chemically, 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[branched to α-D-Glcp(1-->4)]-D-GlcpNAc-(1--> |
| BCSDB Structure | 108641 |
| Proposed functions | LPS plays an important virulence role based on its antiphagocytic and endotoxic properties |
| Antigenic Nature used to produce antibodies | Heat killed cells |
| Carrier Name | Nil |
| Conjugation Method | Nil |
| Antibodies | Mab MASF I |
| Antibody type and class | IgG1 |
| Assay System | Immunoblotting, enzyme-linked immunosorbent assay (ELISA), hemagglutination, and coagglutination |
| Cross-reactivity | The type I O antigen-specific antibodies were shown to bind exclusively to S. flexneri serotypes la and lb in ELISA |
| Proposed epitopes | The α-D-Glcp-(1-->4)-β-D-GlcpNAc disaccharide in the repeating unit of the O-antigen is the immunodominant region to which these antibodies bind |
| IEDB Epitope | 76664 |
| Proposed Utility | This Mab can be used for detection and identification of shigella flexneri species |
| Curator ID | AA + AS |
| Date of Curation | 01-04-2011 |
| References | 2424839 |
| PolysacDB ID | 2320 |
| Carbohydrate Name | O-polysaccharide (Drugpedia) |
| Carbohydrate Class | Lipopolysaccharide |
| Microbe | Shigella flexneri serotype 1b (NCBI Taxonomy) (Drugpedia) |
| Basic Structure | Chemically, 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[branched to α-D-Glcp(1-->4)]-D-GlcpNAc-(1--> |
| BCSDB Structure | 108641 |
| Proposed functions | LPS plays an important virulence role based on its antiphagocytic and endotoxic properties |
| Antigenic Nature used to produce antibodies | Heat killed cells |
| Carrier Name | Nil |
| Conjugation Method | Nil |
| Antibodies | Mab MASF 111:6,7,8 |
| Antibody type and class | N/A |
| Assay System | Immunoblotting, enzyme-linked immunosorbent assay (ELISA), hemagglutination, and coagglutination |
| Cross-reactivity | The type 111:6,7,8 O-antigen-specific antibodies were specific for S. flexneri serotype 3a |
| Proposed epitopes | These antibodies seemed to require the simultaneous presence of all three antigens for binding i.e. type III antigen and the group 6 and 7,8 antigens |
| IEDB Epitope | 76664 |
| Proposed Utility | This Mab can be used for detection and identification of shigella flexneri species |
| Curator ID | AA + AS |
| Date of Curation | 01-04-2011 |
| References | 2424839 |
| PolysacDB ID | 2321 |
| Carbohydrate Name | O-polysaccharide (Drugpedia) |
| Carbohydrate Class | Lipopolysaccharide |
| Microbe | Shigella flexneri serotype 1b (NCBI Taxonomy) (Drugpedia) |
| Basic Structure | Chemically, 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[branched to α-D-Glcp(1-->4)]-D-GlcpNAc-(1--> |
| BCSDB Structure | 108641 |
| Proposed functions | LPS plays an important virulence role based on its antiphagocytic and endotoxic properties |
| Antigenic Nature used to produce antibodies | Heat killed cells |
| Carrier Name | Nil |
| Conjugation Method | Nil |
| Antibodies | Mab MASF 6-1 |
| Antibody type and class | IgG1 |
| Assay System | Immunoblotting, enzyme-linked immunosorbent assay (ELISA), hemagglutination, and coagglutination |
| Cross-reactivity | This Mab bound to LPSs of S. flexneri serotypes lb, 3a, 3b, and 4b |
| Proposed epitopes | These LPSs have one antigenic determinant i.e group 6 antigen. It is therefore likely that the structure responsible for binding is the O-acetyl group on C-2 of rhamnose III |
| IEDB Epitope | 76664 |
| Proposed Utility | This Mab can be used for detection and identification of shigella flexneri species |
| Curator ID | AA + AS |
| Date of Curation | 01-04-2011 |
| References | 2424839 |
| PolysacDB ID | 2322 |
| Carbohydrate Name | O-polysaccharide (Drugpedia) |
| Carbohydrate Class | Lipopolysaccharide |
| Microbe | Shigella flexneri serotype 1b (NCBI Taxonomy) (Drugpedia) |
| Basic Structure | Chemically, 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[branched to α-D-Glcp(1-->4)]-D-GlcpNAc-(1--> |
| BCSDB Structure | 108641 |
| Proposed functions | LPS plays an important virulence role based on its antiphagocytic and endotoxic properties |
| Antigenic Nature used to produce antibodies | Heat killed cells |
| Carrier Name | Nil |
| Conjugation Method | Nil |
| Antibodies | Mab MASF 6-2 |
| Antibody type and class | IgG1 |
| Assay System | Immunoblotting, enzyme-linked immunosorbent assay (ELISA), hemagglutination, and coagglutination |
| Cross-reactivity | This Mab bound to LPSs of S. flexneri serotypes lb, 3a, 3b, and 4b |
| Proposed epitopes | These LPSs have one antigenic determinant i.e group 6 antigen. It is therefore likely that the structure responsible for binding is the O-acetyl group on C-2 of rhamnose III |
| IEDB Epitope | 76664 |
| Proposed Utility | This Mab can be used for detection and identification of shigella flexneri species |
| Curator ID | AA + AS |
| Date of Curation | 02-04-2011 |
| References | 2424839 |
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Department of Computational Biology, Indraprastha Institute of Information Technology, Sec - 39A, New Delhi, India - 110020 |