CarboDB Capsular polysaccharide 2602
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[edit] Carbohydrate Name
Capsular polysaccharide
[edit] Carbohydrate Class
Capsular polysaccharide
[edit] Source Microbe
Cryptococcus neoformans Serotype D
[edit] Basic Structure
The capsular polysaccharide has a linear α-(1-->3)-linked mannose backbone that is substituted with nonreducing D-xylosyl and D-glucuronosyl acid groups. The mannose backbone is partially O-acetylated
[edit] Proposed functions
The capsular polysaccharide is an important virulence factor
[edit] Antigenic Nature used to produce antibodies
Glycoconjugates
[edit] Carrier Name
Sheep erythrocytes
[edit] Conjugation Method
The capsular polysaccharide was adsorbed with 0.1 ml of packed sheep erythrocytes for 2 hours at room temperature
[edit] Antibodies
Mab 386
[edit] Antibody type and class
N/A
[edit] Assay System
ELISA and Immunodiffusion
[edit] Cross-reactivity
This antibody has a highly variable cross-reactivity. It cross reacts with most strains of Serotype A and D. It cross reacts with only one strain of serotype B and 2 strains of serotype C. does not show a reaction with ELISA
[edit] Proposed epitopes
Since Mab 386 does not show any positive results with ELISA, it is suggested that binding of polysaccharides to plates coated with poly-L-lysine altered the carboxyl residues that may form part of an epitope recognized by the antibody
[edit] Proposed Utility
used to differentiate various strains of all serotypes
