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THE USE OF PRECIPITIN ANALYSIS IN AGAR FOR THE STUDY OF HUMAN STREPTOCOCCAL INFECTIONS : IV. FURTHER OBSERVATIONS ON THE PURIFICATION OF GROUP A EXTRACELLULAR ANTIGENS
Studies on the purification of group A streptococcal extracellular antigens detectable with naturally occurring human antibodies from normal individuals have been extended. It has been shown that streptococcal electrophoretic fractions intermediate between the most rapidly migrating components are q...
Autores principales: | , |
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Formato: | Texto |
Lenguaje: | English |
Publicado: |
The Rockefeller University Press
1961
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2137340/ https://www.ncbi.nlm.nih.gov/pubmed/13710679 |
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author | Halbert, S. P. Auerbach, T. |
author_facet | Halbert, S. P. Auerbach, T. |
author_sort | Halbert, S. P. |
collection | PubMed |
description | Studies on the purification of group A streptococcal extracellular antigens detectable with naturally occurring human antibodies from normal individuals have been extended. It has been shown that streptococcal electrophoretic fractions intermediate between the most rapidly migrating components are quite complex. In the calcium phosphate chromatography of adjacent electrophoretic fractions, particular antigenic components desorbed at similar buffer elution steps. It is clear from the results obtained that substantially more extracellular antigens than the twelve heretofore recognized are secreted in human beings during infection, as judged by their detection with human antibodies. The precise number is not yet known, but is probably greater than 16. Of the nine components which thus far have been separated rather well from the others, four were previously identified as streptolysin "O," diphosphopyridine nucleotidase, proteinase precursor, and desoxyribonuclease B. The accumulated data substantiated these previous identifications. The identity of a fifth antigen has been made as a possible complex of C carbohydrate and protein. Tentative evidence for the relationship of a sixth component to scarlet fever toxin has been presented. It has been shown that rechromatography of crystalline proteinase precursor and desoxyribonuclease B on calcium phosphate columns resulted in elution principally at the expected stepwise increase in buffer concentration. Attempts to isolate antigens present as mixtures in some calcium phosphate chromatographic peaks, by rechromatography on DEAE or CM cellulose columns resulted in only limited further purifications. |
format | Text |
id | pubmed-2137340 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 1961 |
publisher | The Rockefeller University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-21373402008-04-17 THE USE OF PRECIPITIN ANALYSIS IN AGAR FOR THE STUDY OF HUMAN STREPTOCOCCAL INFECTIONS : IV. FURTHER OBSERVATIONS ON THE PURIFICATION OF GROUP A EXTRACELLULAR ANTIGENS Halbert, S. P. Auerbach, T. J Exp Med Article Studies on the purification of group A streptococcal extracellular antigens detectable with naturally occurring human antibodies from normal individuals have been extended. It has been shown that streptococcal electrophoretic fractions intermediate between the most rapidly migrating components are quite complex. In the calcium phosphate chromatography of adjacent electrophoretic fractions, particular antigenic components desorbed at similar buffer elution steps. It is clear from the results obtained that substantially more extracellular antigens than the twelve heretofore recognized are secreted in human beings during infection, as judged by their detection with human antibodies. The precise number is not yet known, but is probably greater than 16. Of the nine components which thus far have been separated rather well from the others, four were previously identified as streptolysin "O," diphosphopyridine nucleotidase, proteinase precursor, and desoxyribonuclease B. The accumulated data substantiated these previous identifications. The identity of a fifth antigen has been made as a possible complex of C carbohydrate and protein. Tentative evidence for the relationship of a sixth component to scarlet fever toxin has been presented. It has been shown that rechromatography of crystalline proteinase precursor and desoxyribonuclease B on calcium phosphate columns resulted in elution principally at the expected stepwise increase in buffer concentration. Attempts to isolate antigens present as mixtures in some calcium phosphate chromatographic peaks, by rechromatography on DEAE or CM cellulose columns resulted in only limited further purifications. The Rockefeller University Press 1961-01-01 /pmc/articles/PMC2137340/ /pubmed/13710679 Text en Copyright © Copyright, 1961, by The Rockefeller Institute 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 Halbert, S. P. Auerbach, T. THE USE OF PRECIPITIN ANALYSIS IN AGAR FOR THE STUDY OF HUMAN STREPTOCOCCAL INFECTIONS : IV. FURTHER OBSERVATIONS ON THE PURIFICATION OF GROUP A EXTRACELLULAR ANTIGENS |
title | THE USE OF PRECIPITIN ANALYSIS IN AGAR FOR THE STUDY OF HUMAN STREPTOCOCCAL INFECTIONS : IV. FURTHER OBSERVATIONS ON THE PURIFICATION OF GROUP A EXTRACELLULAR ANTIGENS |
title_full | THE USE OF PRECIPITIN ANALYSIS IN AGAR FOR THE STUDY OF HUMAN STREPTOCOCCAL INFECTIONS : IV. FURTHER OBSERVATIONS ON THE PURIFICATION OF GROUP A EXTRACELLULAR ANTIGENS |
title_fullStr | THE USE OF PRECIPITIN ANALYSIS IN AGAR FOR THE STUDY OF HUMAN STREPTOCOCCAL INFECTIONS : IV. FURTHER OBSERVATIONS ON THE PURIFICATION OF GROUP A EXTRACELLULAR ANTIGENS |
title_full_unstemmed | THE USE OF PRECIPITIN ANALYSIS IN AGAR FOR THE STUDY OF HUMAN STREPTOCOCCAL INFECTIONS : IV. FURTHER OBSERVATIONS ON THE PURIFICATION OF GROUP A EXTRACELLULAR ANTIGENS |
title_short | THE USE OF PRECIPITIN ANALYSIS IN AGAR FOR THE STUDY OF HUMAN STREPTOCOCCAL INFECTIONS : IV. FURTHER OBSERVATIONS ON THE PURIFICATION OF GROUP A EXTRACELLULAR ANTIGENS |
title_sort | use of precipitin analysis in agar for the study of human streptococcal infections : iv. further observations on the purification of group a extracellular antigens |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2137340/ https://www.ncbi.nlm.nih.gov/pubmed/13710679 |
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