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PREPARATION AND PROPERTIES OF TYPE-SPECIFIC M ANTIGEN ISOLATED FROM A GROUP A, TYPE 1 HEMOLYTIC STREPTOCOCCUS
Type-specific M antigen was extracted by heating type 1 group A streptococci at pH 2 in a boiling water bath. The protein was then purified by digestion with a preparation of crystalline ribonuclease which was free of proteolytic activity. It was further purified by fractional precipitation with (NH...
Autores principales: | Lancefield, Rebecca C., Perlmann, Gertrude E. |
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Formato: | Texto |
Lenguaje: | English |
Publicado: |
The Rockefeller University Press
1952
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2136131/ https://www.ncbi.nlm.nih.gov/pubmed/14946330 |
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