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Streptococcus pneumoniae Type 5 Capsular Polysaccharide

Molecular classification
Polysaccharide, Capsular Polysaccharide, Antigen
01

Overview

The Streptococcus pneumoniae type 5 capsular polysaccharide is a serotype-specific surface carbohydrate structure found on the outer layer of S. pneumoniae bacteria. This capsule is a critical virulence factor, enabling the bacterium to evade host immune responses, particularly by interfering with opsonophagocytic clearance mechanisms. The type 5 capsular polysaccharide is also the antigenic component used in certain pneumococcal vaccines for active immunization against diseases such as pneumococcal pneumonia and bacteremia.

Other names
Streptococcus pneumoniae Type 5 Polysaccharide Antigen APneumococcal Polysaccharide Serotype 5N8R9GL539D
02

Mechanism of action

Induces antibody-mediated immunity

03

Biological functions

Evasion of host immunityVirulence factorAntigen presentation
04

Disease associations

Pneumococcal pneumoniaBacteremiaInfection
05

Interacting drugs

Pneumococcal vaccines (multivalent)

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