Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1958 Jun 1;107(6):783-95.
doi: 10.1084/jem.107.6.783.

Electrophoretic studies of the extracellular products of group A Streptococci

L W WANNAMAKER

Electrophoretic studies of the extracellular products of group A Streptococci

L W WANNAMAKER. J Exp Med. .

Abstract

Concentrates of the extracellular products of group A streptococci were prepared which were essentially free of constituents of the medium. The extracellular products appeared to consist primarily of protein material. The yield of total extracellular products was of the order of magnitude of 10 mg. per liter of supernatant broth. When studied by zone electrophoresis, the concentrates showed protein over a wide distribution with distinct peaks in certain areas. The locations of streptolysin O, streptokinase, desoxyribonuclease, and ribonuclease activities were identified, and partial separation of these enzymes was achieved. Considerable variation in the electrophoretic patterns of the extracellular products from different strains was noted.

PubMed Disclaimer

References

    1. J Exp Med. 1958 Jun 1;107(6):797-812 - PubMed
    1. Proc Soc Exp Biol Med. 1952 May;80(1):42-4 - PubMed
    1. J Exp Med. 1955 May 1;101(5):557-76 - PubMed
    1. Proc Soc Exp Biol Med. 1957 Oct;96(1):108-12 - PubMed
    1. J Gen Physiol. 1951 Sep;35(1):89-118 - PubMed