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STUDIES ON NON-HEMOLYTIC STREPTOCOCCI ISOLATED FROM THE RESPIRATORY TRACT OF MAN : THE ANTIGENIC BASIS FOR TYPE SPECIFIC REACTIONS WITH STREPTOCOCCUS SALIVARIUS AND NON-LEVAN-FORMING STREPTOCOCCI
The type specific immunological properties of certain non-hemolytic streptococci, including Str. salivarius type I and type II, present in the respiratory tract of human beings appear to be dependent upon the presence of capsular polysaccharides. The levans formed from sucrose by Str. salivarius (en...
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Formato: | Texto |
Lenguaje: | English |
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The Rockefeller University Press
1951
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2136088/ https://www.ncbi.nlm.nih.gov/pubmed/14824398 |
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author | Horsfall, Frank L. |
author_facet | Horsfall, Frank L. |
author_sort | Horsfall, Frank L. |
collection | PubMed |
description | The type specific immunological properties of certain non-hemolytic streptococci, including Str. salivarius type I and type II, present in the respiratory tract of human beings appear to be dependent upon the presence of capsular polysaccharides. The levans formed from sucrose by Str. salivarius (encapsulated S cells or non-encapsulated R variants), or by cell-free enzymes derived from these microorganisms, are indistinguishable immunologically and show no evidence of type specificity. Such levans appear to be immunologically distinct from and unrelated to the capsular polysaccharides of the microorganisms which produce them. |
format | Text |
id | pubmed-2136088 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 1951 |
publisher | The Rockefeller University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-21360882008-04-17 STUDIES ON NON-HEMOLYTIC STREPTOCOCCI ISOLATED FROM THE RESPIRATORY TRACT OF MAN : THE ANTIGENIC BASIS FOR TYPE SPECIFIC REACTIONS WITH STREPTOCOCCUS SALIVARIUS AND NON-LEVAN-FORMING STREPTOCOCCI Horsfall, Frank L. J Exp Med Article The type specific immunological properties of certain non-hemolytic streptococci, including Str. salivarius type I and type II, present in the respiratory tract of human beings appear to be dependent upon the presence of capsular polysaccharides. The levans formed from sucrose by Str. salivarius (encapsulated S cells or non-encapsulated R variants), or by cell-free enzymes derived from these microorganisms, are indistinguishable immunologically and show no evidence of type specificity. Such levans appear to be immunologically distinct from and unrelated to the capsular polysaccharides of the microorganisms which produce them. The Rockefeller University Press 1951-02-28 /pmc/articles/PMC2136088/ /pubmed/14824398 Text en Copyright © Copyright, 1951, by The Rockefeller Institute for Medical Research New York This article is distributed under the terms of an Attribution–Noncommercial–Share Alike–No Mirror Sites license for the first six months after the publication date (see http://www.rupress.org/terms). After six months it is available under a Creative Commons License (Attribution–Noncommercial–Share Alike 4.0 Unported license, as described at http://creativecommons.org/licenses/by-nc-sa/4.0/). |
spellingShingle | Article Horsfall, Frank L. STUDIES ON NON-HEMOLYTIC STREPTOCOCCI ISOLATED FROM THE RESPIRATORY TRACT OF MAN : THE ANTIGENIC BASIS FOR TYPE SPECIFIC REACTIONS WITH STREPTOCOCCUS SALIVARIUS AND NON-LEVAN-FORMING STREPTOCOCCI |
title | STUDIES ON NON-HEMOLYTIC STREPTOCOCCI ISOLATED FROM THE RESPIRATORY TRACT OF MAN : THE ANTIGENIC BASIS FOR TYPE SPECIFIC REACTIONS WITH STREPTOCOCCUS SALIVARIUS AND NON-LEVAN-FORMING STREPTOCOCCI |
title_full | STUDIES ON NON-HEMOLYTIC STREPTOCOCCI ISOLATED FROM THE RESPIRATORY TRACT OF MAN : THE ANTIGENIC BASIS FOR TYPE SPECIFIC REACTIONS WITH STREPTOCOCCUS SALIVARIUS AND NON-LEVAN-FORMING STREPTOCOCCI |
title_fullStr | STUDIES ON NON-HEMOLYTIC STREPTOCOCCI ISOLATED FROM THE RESPIRATORY TRACT OF MAN : THE ANTIGENIC BASIS FOR TYPE SPECIFIC REACTIONS WITH STREPTOCOCCUS SALIVARIUS AND NON-LEVAN-FORMING STREPTOCOCCI |
title_full_unstemmed | STUDIES ON NON-HEMOLYTIC STREPTOCOCCI ISOLATED FROM THE RESPIRATORY TRACT OF MAN : THE ANTIGENIC BASIS FOR TYPE SPECIFIC REACTIONS WITH STREPTOCOCCUS SALIVARIUS AND NON-LEVAN-FORMING STREPTOCOCCI |
title_short | STUDIES ON NON-HEMOLYTIC STREPTOCOCCI ISOLATED FROM THE RESPIRATORY TRACT OF MAN : THE ANTIGENIC BASIS FOR TYPE SPECIFIC REACTIONS WITH STREPTOCOCCUS SALIVARIUS AND NON-LEVAN-FORMING STREPTOCOCCI |
title_sort | studies on non-hemolytic streptococci isolated from the respiratory tract of man : the antigenic basis for type specific reactions with streptococcus salivarius and non-levan-forming streptococci |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2136088/ https://www.ncbi.nlm.nih.gov/pubmed/14824398 |
work_keys_str_mv | AT horsfallfrankl studiesonnonhemolyticstreptococciisolatedfromtherespiratorytractofmantheantigenicbasisfortypespecificreactionswithstreptococcussalivariusandnonlevanformingstreptococci |