Immunoelectron Microscopic Study of the Location of Group-Specific and Protein Type-Specific Antigens of Group B Streptococci
| Autor: | Miloš Rýc, Vladimir Kubin, Manfred Wagner, Barbara Wagner |
|---|---|
| Rok vydání: | 1980 |
| Předmět: |
chemistry.chemical_classification
Antigens Bacterial Myeloma protein Polysaccharides Bacterial Cell Biology Polysaccharide Microbiology Group A Group B Streptococcus agalactiae Epitopes Microscopy Electron medicine.anatomical_structure Biochemistry Antigen chemistry Cell Wall Ultrastructure medicine Conjugate |
| Zdroj: | Microbiology. 118:95-105 |
| ISSN: | 1465-2080 1350-0872 |
| DOI: | 10.1099/00221287-118-1-95 |
| Popis: | The ultrastructural location of the group-specific polysaccharide and the type-specific protein antigens R and X of group B streptococci was studied by means of the direct immunoferritin technique. The group-specific antigen was located on the outer wall layer. The specificity of the reaction was proved by the inhibition of labelling after absorption of the antibody-ferritin conjugate with group B polysaccharide. On the other hand, the demonstration of the polysaccharide was not sterically hindered by protein type antigens. As with group A and C streptococci the group polysaccharide could be localized on both the outer and inner surfaces of isolated walls. The protein antigens R and X were also demonstrated on the wall surface. The specificity of the reaction was ensured by making use of the enzymic sensitivity of these antigens. The location of the R protein on long filaments protruding from the cell surface resembles that of M protein of group A streptococci. In contrast to the group polysaccharide both the R and X protein antigens are localized only on the outer surface of isolated walls. |
| Databáze: | OpenAIRE |
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