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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Record - 1 of 19   [TOP]

PolysacDB ID1003
Carbohydrate NameGlucan   (Drugpedia)
Carbohydrate ClassCapsular polysaccharide
Microbe NameMycobacterium tuberculosis   (NCBI Taxonomy)   (Drugpedia)
Basic StructureGlucans are a heterogeneous group of glucose polymers, consisting of a backbone of β(1-->3)-linked β-D-glucopyranosyl units with β(1-->6)-linked side chains of varying distribution and length
BCSDB StructureN/A
Proposed FunctionActivates leukocytes, stimulating their phagocytic, cytotoxic, and antimicrobial activities, including the production of reactive oxygen and nitrogen intermediates
Antigenic NatureGlycoconjugates
Carrier NamePseudomonas aeruginosa exoprotein A (rEPA)
Conjugate MethodThe polysaccharide was activated with CDAP. A 60-ml volume of CDAP (100 mg/ml of acetonitrile) was added to a solution of polysaccharide (2 ml, 10 mg of polysaccharide per ml of PFS) at room temperature. The pH was maintained at 5.8 to 6.0 for 30 s, and 60 ml of 0.2 M TEA was added to a pH of 7.0. The reaction was carried out for 2 min, and an equal volume of 0.8 M adipic acid dihydrazide [ADH] in 0.5 M NaHCO3 was added. This reaction was carried out for 2 h, and the pH was maintained at 8.0 to 8.5 with 0.1 N NaOH. The reaction mixture was dialyzed against PFS and passed through a column (3 by 46 cm) of P-10 in PFW. The void volume fractions were pooled, freeze-dried. ADH-derivatized polysaccharide (10 mg) was dissolved in PFS (2 ml). An equal weight of protein was added, and the pH was maintained at 5.1 to 5.5 with 0.1 M HCl. The reaction mixture was put on ice, EDAC was added to a final concentration of 0.05 M, and the pH was maintained at 5.1 to 5.5 for 4 h in 0.1 M HCl. The reaction mixtures were dialyzed against 0.2 M NaCl for 2 days with three changes of outer fluid and were passed through a column (1.5 by 90 cm) of Sepharose CL-6B in 0.2 M NaCl. The void volume fractions were stored at 3 to 88°C
AntibodiesMab 24c5
Antibody Type ClassIgG
Assay SystemELISA, Immunofluorescence
Cross ReactivityThis antibody cross-reacted with M. kansasii, BCG Pasteur, M. smegmatis, M. phlei, M. fortuitum, and M. avium
Proposed EpitopeN\A
IEDB EpitopeN/A
Proposed UtilityThe antibody was used to study M. tuberculosis Glucan expression in vitro and in vivo
Curator IDAA + AS
Date of Curation01-01-2010
ReferencesPMC127896

Record - 2 of 19   [TOP]

PolysacDB ID2617
Carbohydrate NameGlucurunoxylomannan   (Drugpedia)
Carbohydrate ClassCapsular polysaccharide
Microbe NameCryptococcus neoformans   (NCBI Taxonomy)   (Drugpedia)
Basic StructureA linear α(1-->3)- linked mannan backbone singly substituted with non-reducing β(1-->2) xylose and β(1-->2) glucuronic acid side branches ; O-acetyl groups are present at C-6 of the mannosyl residues
BCSDB Structure130362
Proposed FunctionAntiphagocytic ; an important virulence factor
Antigenic NatureGlycoconjugates
Carrier NamePseudomonas aeruginosa exoprotein A (rEPA)
Conjugate MethodGXM was derivatized by the following two methods. (i) In method 1, ADH [adipic acid dihydrazide] was introduced into GXM by the activation of carboxyl groups with EDAC. GXM (5 mg/ml of 0.2 M NaCl) was derivatized with 0.5 M ADH and 0.1 M EDAC at pH 4.85 for 3.5 h at room temperature, using a pH Stat. After extensive dialysis against 0.2 M NaCl, the reaction mixture was passed through a 2B-CL Sepharose column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The fractions containing GXM were pooled and concentrated to the original volume. (ii) In method 2, ADH was introduced into GXM by the activation of hydroxyl groups with CNBr. GXM (5 mg/ml of 0.2 M NaCl) was activated with an equal weight of CNBr at pH 10.5 for 6 min at 4°C, using a pH Stat. An equal volume of 0.5 M NaHCO3 (pH 8.5) containing 0.5 M ADH was added. The reaction mixture was tumbled at 3 to 8°C for 18 to 20 h, dialyzed against 0.2 M NaCl, and passed through a 2B-CL Sepharose column (1.5 by 30 cm). The fractions containing GXM were pooled and concentrated to the original volume. The reaction mixture, containing equal concentrations (3.0 to 7.5 mg/ml) of GXM-AH (derivatized by either method) and TT or rEPA in 0.2 M NaCl, was brought to pH 5.6 with 0.05 N HCl, and 0.05 to 0.1 M EDAC was added; the pH was maintained at 5.6 in a pH Stat for 1 to 3 h at 4°C. The reaction mixture was dialyzed against 0.2 M NaCl at 3 to 8°C and passed through a Sepharose 2B-CL column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The void volume fractions containing the GXM and the protein were pooled and stored in 0.01% thimerosal at 3 to 8°C
AntibodiesMab 4H9
Antibody Type ClassIgM
Assay SystemELISA
Cross ReactivityThis antibody cross-reacted with Serotype A,B,C and D serotypes
Proposed EpitopeN/A
IEDB EpitopeN/A
Proposed UtilityThis antibody was used to decipher and differentiate the serum antibody response of autoimmune mice as compared to normal mice
Curator IDAA + AS
Date of Curation21-07-2011
References10456888

Record - 3 of 19   [TOP]

PolysacDB ID2618
Carbohydrate NameGlucurunoxylomannan   (Drugpedia)
Carbohydrate ClassCapsular polysaccharide
Microbe NameCryptococcus neoformans   (NCBI Taxonomy)   (Drugpedia)
Basic StructureA linear α(1-->3)- linked mannan backbone singly substituted with non-reducing β(1-->2) xylose and β(1-->2) glucuronic acid side branches ; O-acetyl groups are present at C-6 of the mannosyl residues
BCSDB Structure130362
Proposed FunctionAntiphagocytic ; an important virulence factor
Antigenic NatureGlycoconjugates
Carrier NamePseudomonas aeruginosa exoprotein A (rEPA)
Conjugate MethodGXM was derivatized by the following two methods. (i) In method 1, ADH [adipic acid dihydrazide] was introduced into GXM by the activation of carboxyl groups with EDAC. GXM (5 mg/ml of 0.2 M NaCl) was derivatized with 0.5 M ADH and 0.1 M EDAC at pH 4.85 for 3.5 h at room temperature, using a pH Stat. After extensive dialysis against 0.2 M NaCl, the reaction mixture was passed through a 2B-CL Sepharose column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The fractions containing GXM were pooled and concentrated to the original volume. (ii) In method 2, ADH was introduced into GXM by the activation of hydroxyl groups with CNBr. GXM (5 mg/ml of 0.2 M NaCl) was activated with an equal weight of CNBr at pH 10.5 for 6 min at 4°C, using a pH Stat. An equal volume of 0.5 M NaHCO3 (pH 8.5) containing 0.5 M ADH was added. The reaction mixture was tumbled at 3 to 8°C for 18 to 20 h, dialyzed against 0.2 M NaCl, and passed through a 2B-CL Sepharose column (1.5 by 30 cm). The fractions containing GXM were pooled and concentrated to the original volume. The reaction mixture, containing equal concentrations (3.0 to 7.5 mg/ml) of GXM-AH (derivatized by either method) and TT or rEPA in 0.2 M NaCl, was brought to pH 5.6 with 0.05 N HCl, and 0.05 to 0.1 M EDAC was added; the pH was maintained at 5.6 in a pH Stat for 1 to 3 h at 4°C. The reaction mixture was dialyzed against 0.2 M NaCl at 3 to 8°C and passed through a Sepharose 2B-CL column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The void volume fractions containing the GXM and the protein were pooled and stored in 0.01% thimerosal at 3 to 8°C
AntibodiesMab 6C3.4
Antibody Type ClassIgM
Assay SystemELISA
Cross ReactivityThis antibody cross-reacted with Serotype A,B,C and D serotypes
Proposed EpitopeN/A
IEDB EpitopeN/A
Proposed UtilityThis antibody was used to decipher and differentiate the serum antibody response of autoimmune mice as compared to normal mice
Curator IDAA + AS
Date of Curation22-07-2011
References10456888

Record - 4 of 19   [TOP]

PolysacDB ID2619
Carbohydrate NameGlucurunoxylomannan   (Drugpedia)
Carbohydrate ClassCapsular polysaccharide
Microbe NameCryptococcus neoformans   (NCBI Taxonomy)   (Drugpedia)
Basic StructureA linear α(1-->3)- linked mannan backbone singly substituted with non-reducing β(1-->2) xylose and β(1-->2) glucuronic acid side branches ; O-acetyl groups are present at C-6 of the mannosyl residues
BCSDB Structure130362
Proposed FunctionAntiphagocytic ; an important virulence factor
Antigenic NatureGlycoconjugates
Carrier NamePseudomonas aeruginosa exoprotein A (rEPA)
Conjugate MethodGXM was derivatized by the following two methods. (i) In method 1, ADH [adipic acid dihydrazide] was introduced into GXM by the activation of carboxyl groups with EDAC. GXM (5 mg/ml of 0.2 M NaCl) was derivatized with 0.5 M ADH and 0.1 M EDAC at pH 4.85 for 3.5 h at room temperature, using a pH Stat. After extensive dialysis against 0.2 M NaCl, the reaction mixture was passed through a 2B-CL Sepharose column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The fractions containing GXM were pooled and concentrated to the original volume. (ii) In method 2, ADH was introduced into GXM by the activation of hydroxyl groups with CNBr. GXM (5 mg/ml of 0.2 M NaCl) was activated with an equal weight of CNBr at pH 10.5 for 6 min at 4°C, using a pH Stat. An equal volume of 0.5 M NaHCO3 (pH 8.5) containing 0.5 M ADH was added. The reaction mixture was tumbled at 3 to 8°C for 18 to 20 h, dialyzed against 0.2 M NaCl, and passed through a 2B-CL Sepharose column (1.5 by 30 cm). The fractions containing GXM were pooled and concentrated to the original volume. The reaction mixture, containing equal concentrations (3.0 to 7.5 mg/ml) of GXM-AH (derivatized by either method) and TT or rEPA in 0.2 M NaCl, was brought to pH 5.6 with 0.05 N HCl, and 0.05 to 0.1 M EDAC was added; the pH was maintained at 5.6 in a pH Stat for 1 to 3 h at 4°C. The reaction mixture was dialyzed against 0.2 M NaCl at 3 to 8°C and passed through a Sepharose 2B-CL column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The void volume fractions containing the GXM and the protein were pooled and stored in 0.01% thimerosal at 3 to 8°C
AntibodiesMab 6A5
Antibody Type ClassIgG3
Assay SystemELISA
Cross ReactivityThis antibody cross-reacted with Serotype A,B,C and D serotypes
Proposed EpitopeN/A
IEDB EpitopeN/A
Proposed UtilityThis antibody was used to decipher and differentiate the serum antibody response of autoimmune mice as compared to normal mice
Curator IDAA + AS
Date of Curation22-07-2011
References10456888

Record - 5 of 19   [TOP]

PolysacDB ID2620
Carbohydrate NameGlucurunoxylomannan   (Drugpedia)
Carbohydrate ClassCapsular polysaccharide
Microbe NameCryptococcus neoformans   (NCBI Taxonomy)   (Drugpedia)
Basic StructureA linear α(1-->3)- linked mannan backbone singly substituted with non-reducing β(1-->2) xylose and β(1-->2) glucuronic acid side branches ; O-acetyl groups are present at C-6 of the mannosyl residues
BCSDB Structure130362
Proposed FunctionAntiphagocytic ; an important virulence factor
Antigenic NatureGlycoconjugates
Carrier NamePseudomonas aeruginosa exoprotein A (rEPA)
Conjugate MethodGXM was derivatized by the following two methods. (i) In method 1, ADH [adipic acid dihydrazide] was introduced into GXM by the activation of carboxyl groups with EDAC. GXM (5 mg/ml of 0.2 M NaCl) was derivatized with 0.5 M ADH and 0.1 M EDAC at pH 4.85 for 3.5 h at room temperature, using a pH Stat. After extensive dialysis against 0.2 M NaCl, the reaction mixture was passed through a 2B-CL Sepharose column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The fractions containing GXM were pooled and concentrated to the original volume. (ii) In method 2, ADH was introduced into GXM by the activation of hydroxyl groups with CNBr. GXM (5 mg/ml of 0.2 M NaCl) was activated with an equal weight of CNBr at pH 10.5 for 6 min at 4°C, using a pH Stat. An equal volume of 0.5 M NaHCO3 (pH 8.5) containing 0.5 M ADH was added. The reaction mixture was tumbled at 3 to 8°C for 18 to 20 h, dialyzed against 0.2 M NaCl, and passed through a 2B-CL Sepharose column (1.5 by 30 cm). The fractions containing GXM were pooled and concentrated to the original volume. The reaction mixture, containing equal concentrations (3.0 to 7.5 mg/ml) of GXM-AH (derivatized by either method) and TT or rEPA in 0.2 M NaCl, was brought to pH 5.6 with 0.05 N HCl, and 0.05 to 0.1 M EDAC was added; the pH was maintained at 5.6 in a pH Stat for 1 to 3 h at 4°C. The reaction mixture was dialyzed against 0.2 M NaCl at 3 to 8°C and passed through a Sepharose 2B-CL column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The void volume fractions containing the GXM and the protein were pooled and stored in 0.01% thimerosal at 3 to 8°C
AntibodiesMab 9A12
Antibody Type ClassIgG3
Assay SystemELISA
Cross ReactivityThis antibody cross-reacted with Serotype A,B,C and D serotypes
Proposed EpitopeN/A
IEDB EpitopeN/A
Proposed UtilityThis antibody was used to decipher and differentiate the serum antibody response of autoimmune mice as compared to normal mice
Curator IDAA + AS
Date of Curation22-07-2011
References10456888

Record - 6 of 19   [TOP]

PolysacDB ID2621
Carbohydrate NameGlucurunoxylomannan   (Drugpedia)
Carbohydrate ClassCapsular polysaccharide
Microbe NameCryptococcus neoformans   (NCBI Taxonomy)   (Drugpedia)
Basic StructureA linear α(1-->3)- linked mannan backbone singly substituted with non-reducing β(1-->2) xylose and β(1-->2) glucuronic acid side branches ; O-acetyl groups are present at C-6 of the mannosyl residues
BCSDB Structure130362
Proposed FunctionAntiphagocytic ; an important virulence factor
Antigenic NatureGlycoconjugates
Carrier NamePseudomonas aeruginosa exoprotein A (rEPA)
Conjugate MethodGXM was derivatized by the following two methods. (i) In method 1, ADH [adipic acid dihydrazide] was introduced into GXM by the activation of carboxyl groups with EDAC. GXM (5 mg/ml of 0.2 M NaCl) was derivatized with 0.5 M ADH and 0.1 M EDAC at pH 4.85 for 3.5 h at room temperature, using a pH Stat. After extensive dialysis against 0.2 M NaCl, the reaction mixture was passed through a 2B-CL Sepharose column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The fractions containing GXM were pooled and concentrated to the original volume. (ii) In method 2, ADH was introduced into GXM by the activation of hydroxyl groups with CNBr. GXM (5 mg/ml of 0.2 M NaCl) was activated with an equal weight of CNBr at pH 10.5 for 6 min at 4°C, using a pH Stat. An equal volume of 0.5 M NaHCO3 (pH 8.5) containing 0.5 M ADH was added. The reaction mixture was tumbled at 3 to 8°C for 18 to 20 h, dialyzed against 0.2 M NaCl, and passed through a 2B-CL Sepharose column (1.5 by 30 cm). The fractions containing GXM were pooled and concentrated to the original volume. The reaction mixture, containing equal concentrations (3.0 to 7.5 mg/ml) of GXM-AH (derivatized by either method) and TT or rEPA in 0.2 M NaCl, was brought to pH 5.6 with 0.05 N HCl, and 0.05 to 0.1 M EDAC was added; the pH was maintained at 5.6 in a pH Stat for 1 to 3 h at 4°C. The reaction mixture was dialyzed against 0.2 M NaCl at 3 to 8°C and passed through a Sepharose 2B-CL column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The void volume fractions containing the GXM and the protein were pooled and stored in 0.01% thimerosal at 3 to 8°C
AntibodiesMab A2F12
Antibody Type ClassIgG3
Assay SystemELISA
Cross ReactivityThis antibody cross-reacted with Serotype A,B,C and D serotypes
Proposed EpitopeN/A
IEDB EpitopeN/A
Proposed UtilityThis antibody was used to decipher and differentiate the serum antibody response of autoimmune mice as compared to normal mice
Curator IDAA + AS
Date of Curation23-07-2011
References10456888

Record - 7 of 19   [TOP]

PolysacDB ID2622
Carbohydrate NameGlucurunoxylomannan   (Drugpedia)
Carbohydrate ClassCapsular polysaccharide
Microbe NameCryptococcus neoformans   (NCBI Taxonomy)   (Drugpedia)
Basic StructureA linear α(1-->3)- linked mannan backbone singly substituted with non-reducing β(1-->2) xylose and β(1-->2) glucuronic acid side branches ; O-acetyl groups are present at C-6 of the mannosyl residues
BCSDB Structure130362
Proposed FunctionAntiphagocytic ; an important virulence factor
Antigenic NatureGlycoconjugates
Carrier NamePseudomonas aeruginosa exoprotein A (rEPA)
Conjugate MethodGXM was derivatized by the following two methods. (i) In method 1, ADH [adipic acid dihydrazide] was introduced into GXM by the activation of carboxyl groups with EDAC. GXM (5 mg/ml of 0.2 M NaCl) was derivatized with 0.5 M ADH and 0.1 M EDAC at pH 4.85 for 3.5 h at room temperature, using a pH Stat. After extensive dialysis against 0.2 M NaCl, the reaction mixture was passed through a 2B-CL Sepharose column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The fractions containing GXM were pooled and concentrated to the original volume. (ii) In method 2, ADH was introduced into GXM by the activation of hydroxyl groups with CNBr. GXM (5 mg/ml of 0.2 M NaCl) was activated with an equal weight of CNBr at pH 10.5 for 6 min at 4°C, using a pH Stat. An equal volume of 0.5 M NaHCO3 (pH 8.5) containing 0.5 M ADH was added. The reaction mixture was tumbled at 3 to 8°C for 18 to 20 h, dialyzed against 0.2 M NaCl, and passed through a 2B-CL Sepharose column (1.5 by 30 cm). The fractions containing GXM were pooled and concentrated to the original volume. The reaction mixture, containing equal concentrations (3.0 to 7.5 mg/ml) of GXM-AH (derivatized by either method) and TT or rEPA in 0.2 M NaCl, was brought to pH 5.6 with 0.05 N HCl, and 0.05 to 0.1 M EDAC was added; the pH was maintained at 5.6 in a pH Stat for 1 to 3 h at 4°C. The reaction mixture was dialyzed against 0.2 M NaCl at 3 to 8°C and passed through a Sepharose 2B-CL column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The void volume fractions containing the GXM and the protein were pooled and stored in 0.01% thimerosal at 3 to 8°C
AntibodiesMab 6C3.3
Antibody Type ClassIgG1
Assay SystemELISA
Cross ReactivityThis antibody cross-reacted with Serotype A,B,C and D serotypes
Proposed EpitopeN/A
IEDB EpitopeN/A
Proposed UtilityThis antibody was used to decipher and differentiate the serum antibody response of autoimmune mice as compared to normal mice
Curator IDAA + AS
Date of Curation23-07-2011
References10456888

Record - 8 of 19   [TOP]

PolysacDB ID2623
Carbohydrate NameGlucurunoxylomannan   (Drugpedia)
Carbohydrate ClassCapsular polysaccharide
Microbe NameCryptococcus neoformans   (NCBI Taxonomy)   (Drugpedia)
Basic StructureA linear α(1-->3)- linked mannan backbone singly substituted with non-reducing β(1-->2) xylose and β(1-->2) glucuronic acid side branches ; O-acetyl groups are present at C-6 of the mannosyl residues
BCSDB Structure130362
Proposed FunctionAntiphagocytic ; an important virulence factor
Antigenic NatureGlycoconjugates
Carrier NamePseudomonas aeruginosa exoprotein A (rEPA)
Conjugate MethodGXM was derivatized by the following two methods. (i) In method 1, ADH [adipic acid dihydrazide] was introduced into GXM by the activation of carboxyl groups with EDAC. GXM (5 mg/ml of 0.2 M NaCl) was derivatized with 0.5 M ADH and 0.1 M EDAC at pH 4.85 for 3.5 h at room temperature, using a pH Stat. After extensive dialysis against 0.2 M NaCl, the reaction mixture was passed through a 2B-CL Sepharose column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The fractions containing GXM were pooled and concentrated to the original volume. (ii) In method 2, ADH was introduced into GXM by the activation of hydroxyl groups with CNBr. GXM (5 mg/ml of 0.2 M NaCl) was activated with an equal weight of CNBr at pH 10.5 for 6 min at 4°C, using a pH Stat. An equal volume of 0.5 M NaHCO3 (pH 8.5) containing 0.5 M ADH was added. The reaction mixture was tumbled at 3 to 8°C for 18 to 20 h, dialyzed against 0.2 M NaCl, and passed through a 2B-CL Sepharose column (1.5 by 30 cm). The fractions containing GXM were pooled and concentrated to the original volume. The reaction mixture, containing equal concentrations (3.0 to 7.5 mg/ml) of GXM-AH (derivatized by either method) and TT or rEPA in 0.2 M NaCl, was brought to pH 5.6 with 0.05 N HCl, and 0.05 to 0.1 M EDAC was added; the pH was maintained at 5.6 in a pH Stat for 1 to 3 h at 4°C. The reaction mixture was dialyzed against 0.2 M NaCl at 3 to 8°C and passed through a Sepharose 2B-CL column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The void volume fractions containing the GXM and the protein were pooled and stored in 0.01% thimerosal at 3 to 8°C
AntibodiesMab IG5
Antibody Type ClassIgG2a
Assay SystemELISA
Cross ReactivityThis antibody cross-reacted with Serotype A,B,C and D serotypes
Proposed EpitopeN/A
IEDB EpitopeN/A
Proposed UtilityThis antibody was used to decipher and differentiate the serum antibody response of autoimmune mice as compared to normal mice
Curator IDAA + AS
Date of Curation24-07-2011
References10456888

Record - 9 of 19   [TOP]

PolysacDB ID2624
Carbohydrate NameGlucurunoxylomannan   (Drugpedia)
Carbohydrate ClassCapsular polysaccharide
Microbe NameCryptococcus neoformans   (NCBI Taxonomy)   (Drugpedia)
Basic StructureA linear α(1-->3)- linked mannan backbone singly substituted with non-reducing β(1-->2) xylose and β(1-->2) glucuronic acid side branches ; O-acetyl groups are present at C-6 of the mannosyl residues
BCSDB Structure130362
Proposed FunctionAntiphagocytic ; an important virulence factor
Antigenic NatureGlycoconjugates
Carrier NamePseudomonas aeruginosa exoprotein A (rEPA)
Conjugate MethodGXM was derivatized by the following two methods. (i) In method 1, ADH [adipic acid dihydrazide] was introduced into GXM by the activation of carboxyl groups with EDAC. GXM (5 mg/ml of 0.2 M NaCl) was derivatized with 0.5 M ADH and 0.1 M EDAC at pH 4.85 for 3.5 h at room temperature, using a pH Stat. After extensive dialysis against 0.2 M NaCl, the reaction mixture was passed through a 2B-CL Sepharose column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The fractions containing GXM were pooled and concentrated to the original volume. (ii) In method 2, ADH was introduced into GXM by the activation of hydroxyl groups with CNBr. GXM (5 mg/ml of 0.2 M NaCl) was activated with an equal weight of CNBr at pH 10.5 for 6 min at 4°C, using a pH Stat. An equal volume of 0.5 M NaHCO3 (pH 8.5) containing 0.5 M ADH was added. The reaction mixture was tumbled at 3 to 8°C for 18 to 20 h, dialyzed against 0.2 M NaCl, and passed through a 2B-CL Sepharose column (1.5 by 30 cm). The fractions containing GXM were pooled and concentrated to the original volume. The reaction mixture, containing equal concentrations (3.0 to 7.5 mg/ml) of GXM-AH (derivatized by either method) and TT or rEPA in 0.2 M NaCl, was brought to pH 5.6 with 0.05 N HCl, and 0.05 to 0.1 M EDAC was added; the pH was maintained at 5.6 in a pH Stat for 1 to 3 h at 4°C. The reaction mixture was dialyzed against 0.2 M NaCl at 3 to 8°C and passed through a Sepharose 2B-CL column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The void volume fractions containing the GXM and the protein were pooled and stored in 0.01% thimerosal at 3 to 8°C
AntibodiesMab 7f8
Antibody Type ClassIgG2a
Assay SystemELISA
Cross ReactivityThis antibody cross-reacted with Serotype A,B,C and D serotypes
Proposed EpitopeN/A
IEDB EpitopeN/A
Proposed UtilityThis antibody was used to decipher and differentiate the serum antibody response of autoimmune mice as compared to normal mice
Curator IDAA + AS
Date of Curation24-07-2011
References10456888

Record - 10 of 19   [TOP]

PolysacDB ID2625
Carbohydrate NameGlucurunoxylomannan   (Drugpedia)
Carbohydrate ClassCapsular polysaccharide
Microbe NameCryptococcus neoformans   (NCBI Taxonomy)   (Drugpedia)
Basic StructureA linear α(1-->3)- linked mannan backbone singly substituted with non-reducing β(1-->2) xylose and β(1-->2) glucuronic acid side branches ; O-acetyl groups are present at C-6 of the mannosyl residues
BCSDB Structure130362
Proposed FunctionAntiphagocytic ; an important virulence factor
Antigenic NatureGlycoconjugates
Carrier NamePseudomonas aeruginosa exoprotein A (rEPA)
Conjugate MethodGXM was derivatized by the following two methods. (i) In method 1, ADH [adipic acid dihydrazide] was introduced into GXM by the activation of carboxyl groups with EDAC. GXM (5 mg/ml of 0.2 M NaCl) was derivatized with 0.5 M ADH and 0.1 M EDAC at pH 4.85 for 3.5 h at room temperature, using a pH Stat. After extensive dialysis against 0.2 M NaCl, the reaction mixture was passed through a 2B-CL Sepharose column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The fractions containing GXM were pooled and concentrated to the original volume. (ii) In method 2, ADH was introduced into GXM by the activation of hydroxyl groups with CNBr. GXM (5 mg/ml of 0.2 M NaCl) was activated with an equal weight of CNBr at pH 10.5 for 6 min at 4°C, using a pH Stat. An equal volume of 0.5 M NaHCO3 (pH 8.5) containing 0.5 M ADH was added. The reaction mixture was tumbled at 3 to 8°C for 18 to 20 h, dialyzed against 0.2 M NaCl, and passed through a 2B-CL Sepharose column (1.5 by 30 cm). The fractions containing GXM were pooled and concentrated to the original volume. The reaction mixture, containing equal concentrations (3.0 to 7.5 mg/ml) of GXM-AH (derivatized by either method) and TT or rEPA in 0.2 M NaCl, was brought to pH 5.6 with 0.05 N HCl, and 0.05 to 0.1 M EDAC was added; the pH was maintained at 5.6 in a pH Stat for 1 to 3 h at 4°C. The reaction mixture was dialyzed against 0.2 M NaCl at 3 to 8°C and passed through a Sepharose 2B-CL column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The void volume fractions containing the GXM and the protein were pooled and stored in 0.01% thimerosal at 3 to 8°C
AntibodiesMab 12g6
Antibody Type ClassIgG2a
Assay SystemELISA
Cross ReactivityThis antibody cross-reacted with Serotype A,B,C and D serotypes
Proposed EpitopeN/A
IEDB EpitopeN/A
Proposed UtilityThis antibody was used to decipher and differentiate the serum antibody response of autoimmune mice as compared to normal mice
Curator IDAA + AS
Date of Curation24-07-2011
References10456888

Record - 11 of 19   [TOP]

PolysacDB ID2626
Carbohydrate NameGlucurunoxylomannan   (Drugpedia)
Carbohydrate ClassCapsular polysaccharide
Microbe NameCryptococcus neoformans   (NCBI Taxonomy)   (Drugpedia)
Basic StructureA linear α(1-->3)- linked mannan backbone singly substituted with non-reducing β(1-->2) xylose and β(1-->2) glucuronic acid side branches ; O-acetyl groups are present at C-6 of the mannosyl residues
BCSDB Structure130362
Proposed FunctionAntiphagocytic ; an important virulence factor
Antigenic NatureGlycoconjugates
Carrier NamePseudomonas aeruginosa exoprotein A (rEPA)
Conjugate MethodGXM was derivatized by the following two methods. (i) In method 1, ADH [adipic acid dihydrazide] was introduced into GXM by the activation of carboxyl groups with EDAC. GXM (5 mg/ml of 0.2 M NaCl) was derivatized with 0.5 M ADH and 0.1 M EDAC at pH 4.85 for 3.5 h at room temperature, using a pH Stat. After extensive dialysis against 0.2 M NaCl, the reaction mixture was passed through a 2B-CL Sepharose column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The fractions containing GXM were pooled and concentrated to the original volume. (ii) In method 2, ADH was introduced into GXM by the activation of hydroxyl groups with CNBr. GXM (5 mg/ml of 0.2 M NaCl) was activated with an equal weight of CNBr at pH 10.5 for 6 min at 4°C, using a pH Stat. An equal volume of 0.5 M NaHCO3 (pH 8.5) containing 0.5 M ADH was added. The reaction mixture was tumbled at 3 to 8°C for 18 to 20 h, dialyzed against 0.2 M NaCl, and passed through a 2B-CL Sepharose column (1.5 by 30 cm). The fractions containing GXM were pooled and concentrated to the original volume. The reaction mixture, containing equal concentrations (3.0 to 7.5 mg/ml) of GXM-AH (derivatized by either method) and TT or rEPA in 0.2 M NaCl, was brought to pH 5.6 with 0.05 N HCl, and 0.05 to 0.1 M EDAC was added; the pH was maintained at 5.6 in a pH Stat for 1 to 3 h at 4°C. The reaction mixture was dialyzed against 0.2 M NaCl at 3 to 8°C and passed through a Sepharose 2B-CL column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The void volume fractions containing the GXM and the protein were pooled and stored in 0.01% thimerosal at 3 to 8°C
AntibodiesMab 12A1.4
Antibody Type ClassIgG2b
Assay SystemELISA
Cross ReactivityThis antibody cross-reacted with Serotype A,B,C and D serotypes
Proposed EpitopeN/A
IEDB EpitopeN/A
Proposed UtilityThis antibody was used to decipher and differentiate the serum antibody response of autoimmune mice as compared to normal mice
Curator IDAA + AS
Date of Curation24-07-2011
References10456888

Record - 12 of 19   [TOP]

PolysacDB ID2627
Carbohydrate NameGlucurunoxylomannan   (Drugpedia)
Carbohydrate ClassCapsular polysaccharide
Microbe NameCryptococcus neoformans   (NCBI Taxonomy)   (Drugpedia)
Basic StructureA linear α(1-->3)- linked mannan backbone singly substituted with non-reducing β(1-->2) xylose and β(1-->2) glucuronic acid side branches ; O-acetyl groups are present at C-6 of the mannosyl residues
BCSDB Structure130362
Proposed FunctionAntiphagocytic ; an important virulence factor
Antigenic NatureGlycoconjugates
Carrier NamePseudomonas aeruginosa exoprotein A (rEPA)
Conjugate MethodGXM was derivatized by the following two methods. (i) In method 1, ADH [adipic acid dihydrazide] was introduced into GXM by the activation of carboxyl groups with EDAC. GXM (5 mg/ml of 0.2 M NaCl) was derivatized with 0.5 M ADH and 0.1 M EDAC at pH 4.85 for 3.5 h at room temperature, using a pH Stat. After extensive dialysis against 0.2 M NaCl, the reaction mixture was passed through a 2B-CL Sepharose column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The fractions containing GXM were pooled and concentrated to the original volume. (ii) In method 2, ADH was introduced into GXM by the activation of hydroxyl groups with CNBr. GXM (5 mg/ml of 0.2 M NaCl) was activated with an equal weight of CNBr at pH 10.5 for 6 min at 4°C, using a pH Stat. An equal volume of 0.5 M NaHCO3 (pH 8.5) containing 0.5 M ADH was added. The reaction mixture was tumbled at 3 to 8°C for 18 to 20 h, dialyzed against 0.2 M NaCl, and passed through a 2B-CL Sepharose column (1.5 by 30 cm). The fractions containing GXM were pooled and concentrated to the original volume. The reaction mixture, containing equal concentrations (3.0 to 7.5 mg/ml) of GXM-AH (derivatized by either method) and TT or rEPA in 0.2 M NaCl, was brought to pH 5.6 with 0.05 N HCl, and 0.05 to 0.1 M EDAC was added; the pH was maintained at 5.6 in a pH Stat for 1 to 3 h at 4°C. The reaction mixture was dialyzed against 0.2 M NaCl at 3 to 8°C and passed through a Sepharose 2B-CL column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The void volume fractions containing the GXM and the protein were pooled and stored in 0.01% thimerosal at 3 to 8°C
AntibodiesMab 15E6
Antibody Type ClassIgG2b
Assay SystemELISA
Cross ReactivityThis antibody cross-reacted with Serotype A,B,C and D serotypes
Proposed EpitopeN/A
IEDB EpitopeN/A
Proposed UtilityThis antibody was used to decipher and differentiate the serum antibody response of autoimmune mice as compared to normal mice
Curator IDAA + AS
Date of Curation24-07-2011
References10456888

Record - 13 of 19   [TOP]

PolysacDB ID2628
Carbohydrate NameGlucurunoxylomannan   (Drugpedia)
Carbohydrate ClassCapsular polysaccharide
Microbe NameCryptococcus neoformans   (NCBI Taxonomy)   (Drugpedia)
Basic StructureA linear α(1-->3)- linked mannan backbone singly substituted with non-reducing β(1-->2) xylose and β(1-->2) glucuronic acid side branches ; O-acetyl groups are present at C-6 of the mannosyl residues
BCSDB Structure130362
Proposed FunctionAntiphagocytic ; an important virulence factor
Antigenic NatureGlycoconjugates
Carrier NamePseudomonas aeruginosa exoprotein A (rEPA)
Conjugate MethodGXM was derivatized by the following two methods. (i) In method 1, ADH [adipic acid dihydrazide] was introduced into GXM by the activation of carboxyl groups with EDAC. GXM (5 mg/ml of 0.2 M NaCl) was derivatized with 0.5 M ADH and 0.1 M EDAC at pH 4.85 for 3.5 h at room temperature, using a pH Stat. After extensive dialysis against 0.2 M NaCl, the reaction mixture was passed through a 2B-CL Sepharose column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The fractions containing GXM were pooled and concentrated to the original volume. (ii) In method 2, ADH was introduced into GXM by the activation of hydroxyl groups with CNBr. GXM (5 mg/ml of 0.2 M NaCl) was activated with an equal weight of CNBr at pH 10.5 for 6 min at 4°C, using a pH Stat. An equal volume of 0.5 M NaHCO3 (pH 8.5) containing 0.5 M ADH was added. The reaction mixture was tumbled at 3 to 8°C for 18 to 20 h, dialyzed against 0.2 M NaCl, and passed through a 2B-CL Sepharose column (1.5 by 30 cm). The fractions containing GXM were pooled and concentrated to the original volume. The reaction mixture, containing equal concentrations (3.0 to 7.5 mg/ml) of GXM-AH (derivatized by either method) and TT or rEPA in 0.2 M NaCl, was brought to pH 5.6 with 0.05 N HCl, and 0.05 to 0.1 M EDAC was added; the pH was maintained at 5.6 in a pH Stat for 1 to 3 h at 4°C. The reaction mixture was dialyzed against 0.2 M NaCl at 3 to 8°C and passed through a Sepharose 2B-CL column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The void volume fractions containing the GXM and the protein were pooled and stored in 0.01% thimerosal at 3 to 8°C
AntibodiesMab 14F8
Antibody Type ClassIgG2b
Assay SystemELISA
Cross ReactivityThis antibody cross-reacted with Serotype A,B,C and D serotypes
Proposed EpitopeN/A
IEDB EpitopeN/A
Proposed UtilityThis antibody was used to decipher and differentiate the serum antibody response of autoimmune mice as compared to normal mice
Curator IDAA + AS
Date of Curation25-07-2011
References10456888

Record - 14 of 19   [TOP]

PolysacDB ID2629
Carbohydrate NameGlucurunoxylomannan   (Drugpedia)
Carbohydrate ClassCapsular polysaccharide
Microbe NameCryptococcus neoformans   (NCBI Taxonomy)   (Drugpedia)
Basic StructureA linear α(1-->3)- linked mannan backbone singly substituted with non-reducing β(1-->2) xylose and β(1-->2) glucuronic acid side branches ; O-acetyl groups are present at C-6 of the mannosyl residues
BCSDB Structure130362
Proposed FunctionAntiphagocytic ; an important virulence factor
Antigenic NatureGlycoconjugates
Carrier NamePseudomonas aeruginosa exoprotein A (rEPA)
Conjugate MethodGXM was derivatized by the following two methods. (i) In method 1, ADH [adipic acid dihydrazide] was introduced into GXM by the activation of carboxyl groups with EDAC. GXM (5 mg/ml of 0.2 M NaCl) was derivatized with 0.5 M ADH and 0.1 M EDAC at pH 4.85 for 3.5 h at room temperature, using a pH Stat. After extensive dialysis against 0.2 M NaCl, the reaction mixture was passed through a 2B-CL Sepharose column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The fractions containing GXM were pooled and concentrated to the original volume. (ii) In method 2, ADH was introduced into GXM by the activation of hydroxyl groups with CNBr. GXM (5 mg/ml of 0.2 M NaCl) was activated with an equal weight of CNBr at pH 10.5 for 6 min at 4°C, using a pH Stat. An equal volume of 0.5 M NaHCO3 (pH 8.5) containing 0.5 M ADH was added. The reaction mixture was tumbled at 3 to 8°C for 18 to 20 h, dialyzed against 0.2 M NaCl, and passed through a 2B-CL Sepharose column (1.5 by 30 cm). The fractions containing GXM were pooled and concentrated to the original volume. The reaction mixture, containing equal concentrations (3.0 to 7.5 mg/ml) of GXM-AH (derivatized by either method) and TT or rEPA in 0.2 M NaCl, was brought to pH 5.6 with 0.05 N HCl, and 0.05 to 0.1 M EDAC was added; the pH was maintained at 5.6 in a pH Stat for 1 to 3 h at 4°C. The reaction mixture was dialyzed against 0.2 M NaCl at 3 to 8°C and passed through a Sepharose 2B-CL column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The void volume fractions containing the GXM and the protein were pooled and stored in 0.01% thimerosal at 3 to 8°C
AntibodiesMab 2G3
Antibody Type ClassIgA
Assay SystemELISA
Cross ReactivityThis antibody cross-reacted with Serotype A,B,C and D serotypes
Proposed EpitopeN/A
IEDB EpitopeN/A
Proposed UtilityThis antibody was used to decipher and differentiate the serum antibody response of autoimmune mice as compared to normal mice
Curator IDAA + AS
Date of Curation25-07-2011
References10456888

Record - 15 of 19   [TOP]

PolysacDB ID2630
Carbohydrate NameGlucurunoxylomannan   (Drugpedia)
Carbohydrate ClassCapsular polysaccharide
Microbe NameCryptococcus neoformans   (NCBI Taxonomy)   (Drugpedia)
Basic StructureA linear α(1-->3)- linked mannan backbone singly substituted with non-reducing β(1-->2) xylose and β(1-->2) glucuronic acid side branches ; O-acetyl groups are present at C-6 of the mannosyl residues
BCSDB Structure130362
Proposed FunctionAntiphagocytic ; an important virulence factor
Antigenic NatureGlycoconjugates
Carrier NamePseudomonas aeruginosa exoprotein A (rEPA)
Conjugate MethodGXM was derivatized by the following two methods. (i) In method 1, ADH [adipic acid dihydrazide] was introduced into GXM by the activation of carboxyl groups with EDAC. GXM (5 mg/ml of 0.2 M NaCl) was derivatized with 0.5 M ADH and 0.1 M EDAC at pH 4.85 for 3.5 h at room temperature, using a pH Stat. After extensive dialysis against 0.2 M NaCl, the reaction mixture was passed through a 2B-CL Sepharose column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The fractions containing GXM were pooled and concentrated to the original volume. (ii) In method 2, ADH was introduced into GXM by the activation of hydroxyl groups with CNBr. GXM (5 mg/ml of 0.2 M NaCl) was activated with an equal weight of CNBr at pH 10.5 for 6 min at 4°C, using a pH Stat. An equal volume of 0.5 M NaHCO3 (pH 8.5) containing 0.5 M ADH was added. The reaction mixture was tumbled at 3 to 8°C for 18 to 20 h, dialyzed against 0.2 M NaCl, and passed through a 2B-CL Sepharose column (1.5 by 30 cm). The fractions containing GXM were pooled and concentrated to the original volume. The reaction mixture, containing equal concentrations (3.0 to 7.5 mg/ml) of GXM-AH (derivatized by either method) and TT or rEPA in 0.2 M NaCl, was brought to pH 5.6 with 0.05 N HCl, and 0.05 to 0.1 M EDAC was added; the pH was maintained at 5.6 in a pH Stat for 1 to 3 h at 4°C. The reaction mixture was dialyzed against 0.2 M NaCl at 3 to 8°C and passed through a Sepharose 2B-CL column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The void volume fractions containing the GXM and the protein were pooled and stored in 0.01% thimerosal at 3 to 8°C
AntibodiesMab 13C8
Antibody Type ClassIgA
Assay SystemELISA
Cross ReactivityThis antibody cross-reacted with Serotype A,B,C and D serotypes
Proposed EpitopeN/A
IEDB EpitopeN/A
Proposed UtilityThis antibody was used to decipher and differentiate the serum antibody response of autoimmune mice as compared to normal mice
Curator IDAA + AS
Date of Curation25-07-2011
References10456888

Record - 16 of 19   [TOP]

PolysacDB ID2631
Carbohydrate NameGlucurunoxylomannan   (Drugpedia)
Carbohydrate ClassCapsular polysaccharide
Microbe NameCryptococcus neoformans   (NCBI Taxonomy)   (Drugpedia)
Basic StructureA linear α(1-->3)- linked mannan backbone singly substituted with non-reducing β(1-->2) xylose and β(1-->2) glucuronic acid side branches ; O-acetyl groups are present at C-6 of the mannosyl residues
BCSDB Structure130362
Proposed FunctionAntiphagocytic ; an important virulence factor
Antigenic NatureGlycoconjugates
Carrier NamePseudomonas aeruginosa exoprotein A (rEPA)
Conjugate MethodGXM was derivatized by the following two methods. (i) In method 1, ADH [adipic acid dihydrazide] was introduced into GXM by the activation of carboxyl groups with EDAC. GXM (5 mg/ml of 0.2 M NaCl) was derivatized with 0.5 M ADH and 0.1 M EDAC at pH 4.85 for 3.5 h at room temperature, using a pH Stat. After extensive dialysis against 0.2 M NaCl, the reaction mixture was passed through a 2B-CL Sepharose column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The fractions containing GXM were pooled and concentrated to the original volume. (ii) In method 2, ADH was introduced into GXM by the activation of hydroxyl groups with CNBr. GXM (5 mg/ml of 0.2 M NaCl) was activated with an equal weight of CNBr at pH 10.5 for 6 min at 4°C, using a pH Stat. An equal volume of 0.5 M NaHCO3 (pH 8.5) containing 0.5 M ADH was added. The reaction mixture was tumbled at 3 to 8°C for 18 to 20 h, dialyzed against 0.2 M NaCl, and passed through a 2B-CL Sepharose column (1.5 by 30 cm). The fractions containing GXM were pooled and concentrated to the original volume. The reaction mixture, containing equal concentrations (3.0 to 7.5 mg/ml) of GXM-AH (derivatized by either method) and TT or rEPA in 0.2 M NaCl, was brought to pH 5.6 with 0.05 N HCl, and 0.05 to 0.1 M EDAC was added; the pH was maintained at 5.6 in a pH Stat for 1 to 3 h at 4°C. The reaction mixture was dialyzed against 0.2 M NaCl at 3 to 8°C and passed through a Sepharose 2B-CL column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The void volume fractions containing the GXM and the protein were pooled and stored in 0.01% thimerosal at 3 to 8°C
AntibodiesMab 16
Antibody Type ClassIgG1
Assay SystemELISA
Cross ReactivityThis antibody cross-reacted with Serotype A,B,C and D serotypes
Proposed EpitopeN/A
IEDB EpitopeN/A
Proposed UtilityThis antibody was used to decipher and differentiate the serum antibody response of autoimmune mice as compared to normal mice
Curator IDAA + AS
Date of Curation26-07-2011
References10456888

Record - 17 of 19   [TOP]

PolysacDB ID2632
Carbohydrate NameGlucurunoxylomannan   (Drugpedia)
Carbohydrate ClassCapsular polysaccharide
Microbe NameCryptococcus neoformans   (NCBI Taxonomy)   (Drugpedia)
Basic StructureA linear α(1-->3)- linked mannan backbone singly substituted with non-reducing β(1-->2) xylose and β(1-->2) glucuronic acid side branches ; O-acetyl groups are present at C-6 of the mannosyl residues
BCSDB Structure130362
Proposed FunctionAntiphagocytic ; an important virulence factor
Antigenic NatureGlycoconjugates
Carrier NamePseudomonas aeruginosa exoprotein A (rEPA)
Conjugate MethodGXM was derivatized by the following two methods. (i) In method 1, ADH [adipic acid dihydrazide] was introduced into GXM by the activation of carboxyl groups with EDAC. GXM (5 mg/ml of 0.2 M NaCl) was derivatized with 0.5 M ADH and 0.1 M EDAC at pH 4.85 for 3.5 h at room temperature, using a pH Stat. After extensive dialysis against 0.2 M NaCl, the reaction mixture was passed through a 2B-CL Sepharose column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The fractions containing GXM were pooled and concentrated to the original volume. (ii) In method 2, ADH was introduced into GXM by the activation of hydroxyl groups with CNBr. GXM (5 mg/ml of 0.2 M NaCl) was activated with an equal weight of CNBr at pH 10.5 for 6 min at 4°C, using a pH Stat. An equal volume of 0.5 M NaHCO3 (pH 8.5) containing 0.5 M ADH was added. The reaction mixture was tumbled at 3 to 8°C for 18 to 20 h, dialyzed against 0.2 M NaCl, and passed through a 2B-CL Sepharose column (1.5 by 30 cm). The fractions containing GXM were pooled and concentrated to the original volume. The reaction mixture, containing equal concentrations (3.0 to 7.5 mg/ml) of GXM-AH (derivatized by either method) and TT or rEPA in 0.2 M NaCl, was brought to pH 5.6 with 0.05 N HCl, and 0.05 to 0.1 M EDAC was added; the pH was maintained at 5.6 in a pH Stat for 1 to 3 h at 4°C. The reaction mixture was dialyzed against 0.2 M NaCl at 3 to 8°C and passed through a Sepharose 2B-CL column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The void volume fractions containing the GXM and the protein were pooled and stored in 0.01% thimerosal at 3 to 8°C
AntibodiesMab 23
Antibody Type ClassIgG1
Assay SystemELISA
Cross ReactivityThis antibody cross-reacted with Serotype A,B,C and D serotypes
Proposed EpitopeN/A
IEDB EpitopeN/A
Proposed UtilityThis antibody was used to decipher and differentiate the serum antibody response of autoimmune mice as compared to normal mice
Curator IDAA + AS
Date of Curation26-07-2011
References10456888

Record - 18 of 19   [TOP]

PolysacDB ID2633
Carbohydrate NameGlucurunoxylomannan   (Drugpedia)
Carbohydrate ClassCapsular polysaccharide
Microbe NameCryptococcus neoformans   (NCBI Taxonomy)   (Drugpedia)
Basic StructureA linear α(1-->3)- linked mannan backbone singly substituted with non-reducing β(1-->2) xylose and β(1-->2) glucuronic acid side branches ; O-acetyl groups are present at C-6 of the mannosyl residues
BCSDB Structure130362
Proposed FunctionAntiphagocytic ; an important virulence factor
Antigenic NatureGlycoconjugates
Carrier NamePseudomonas aeruginosa exoprotein A (rEPA)
Conjugate MethodGXM was derivatized by the following two methods. (i) In method 1, ADH [adipic acid dihydrazide] was introduced into GXM by the activation of carboxyl groups with EDAC. GXM (5 mg/ml of 0.2 M NaCl) was derivatized with 0.5 M ADH and 0.1 M EDAC at pH 4.85 for 3.5 h at room temperature, using a pH Stat. After extensive dialysis against 0.2 M NaCl, the reaction mixture was passed through a 2B-CL Sepharose column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The fractions containing GXM were pooled and concentrated to the original volume. (ii) In method 2, ADH was introduced into GXM by the activation of hydroxyl groups with CNBr. GXM (5 mg/ml of 0.2 M NaCl) was activated with an equal weight of CNBr at pH 10.5 for 6 min at 4°C, using a pH Stat. An equal volume of 0.5 M NaHCO3 (pH 8.5) containing 0.5 M ADH was added. The reaction mixture was tumbled at 3 to 8°C for 18 to 20 h, dialyzed against 0.2 M NaCl, and passed through a 2B-CL Sepharose column (1.5 by 30 cm). The fractions containing GXM were pooled and concentrated to the original volume. The reaction mixture, containing equal concentrations (3.0 to 7.5 mg/ml) of GXM-AH (derivatized by either method) and TT or rEPA in 0.2 M NaCl, was brought to pH 5.6 with 0.05 N HCl, and 0.05 to 0.1 M EDAC was added; the pH was maintained at 5.6 in a pH Stat for 1 to 3 h at 4°C. The reaction mixture was dialyzed against 0.2 M NaCl at 3 to 8°C and passed through a Sepharose 2B-CL column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The void volume fractions containing the GXM and the protein were pooled and stored in 0.01% thimerosal at 3 to 8°C
AntibodiesMab 25
Antibody Type ClassIgG1
Assay SystemELISA
Cross ReactivityThis antibody cross-reacted with Serotype A,B,C and D serotypes
Proposed EpitopeN/A
IEDB EpitopeN/A
Proposed UtilityThis antibody was used to decipher and differentiate the serum antibody response of autoimmune mice as compared to normal mice
Curator IDAA + AS
Date of Curation26-07-2011
References10456888

Record - 19 of 19   [TOP]

PolysacDB ID2634
Carbohydrate NameGlucurunoxylomannan   (Drugpedia)
Carbohydrate ClassCapsular polysaccharide
Microbe NameCryptococcus neoformans   (NCBI Taxonomy)   (Drugpedia)
Basic StructureA linear α(1-->3)- linked mannan backbone singly substituted with non-reducing β(1-->2) xylose and β(1-->2) glucuronic acid side branches ; O-acetyl groups are present at C-6 of the mannosyl residues
BCSDB Structure130362
Proposed FunctionAntiphagocytic ; an important virulence factor
Antigenic NatureGlycoconjugates
Carrier NamePseudomonas aeruginosa exoprotein A (rEPA)
Conjugate MethodGXM was derivatized by the following two methods. (i) In method 1, ADH [adipic acid dihydrazide] was introduced into GXM by the activation of carboxyl groups with EDAC. GXM (5 mg/ml of 0.2 M NaCl) was derivatized with 0.5 M ADH and 0.1 M EDAC at pH 4.85 for 3.5 h at room temperature, using a pH Stat. After extensive dialysis against 0.2 M NaCl, the reaction mixture was passed through a 2B-CL Sepharose column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The fractions containing GXM were pooled and concentrated to the original volume. (ii) In method 2, ADH was introduced into GXM by the activation of hydroxyl groups with CNBr. GXM (5 mg/ml of 0.2 M NaCl) was activated with an equal weight of CNBr at pH 10.5 for 6 min at 4°C, using a pH Stat. An equal volume of 0.5 M NaHCO3 (pH 8.5) containing 0.5 M ADH was added. The reaction mixture was tumbled at 3 to 8°C for 18 to 20 h, dialyzed against 0.2 M NaCl, and passed through a 2B-CL Sepharose column (1.5 by 30 cm). The fractions containing GXM were pooled and concentrated to the original volume. The reaction mixture, containing equal concentrations (3.0 to 7.5 mg/ml) of GXM-AH (derivatized by either method) and TT or rEPA in 0.2 M NaCl, was brought to pH 5.6 with 0.05 N HCl, and 0.05 to 0.1 M EDAC was added; the pH was maintained at 5.6 in a pH Stat for 1 to 3 h at 4°C. The reaction mixture was dialyzed against 0.2 M NaCl at 3 to 8°C and passed through a Sepharose 2B-CL column (1.5 by 30 cm) equilibrated in 0.2 M NaCl. The void volume fractions containing the GXM and the protein were pooled and stored in 0.01% thimerosal at 3 to 8°C
AntibodiesMab 29
Antibody Type ClassIgG1
Assay SystemELISA
Cross ReactivityThis antibody cross-reacted with Serotype A,B,C and D serotypes
Proposed EpitopeN/A
IEDB EpitopeN/A
Proposed UtilityThis antibody was used to decipher and differentiate the serum antibody response of autoimmune mice as compared to normal mice
Curator IDAA + AS
Date of Curation27-07-2011
References10456888

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