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.
Skip Nav Destination
Article navigation
Article|
June 01 1958
ELECTROPHORETIC STUDIES OF THE EXTRACELLULAR PRODUCTS OF GROUP A STREPTOCOCCI
Lewis W. Wannamaker
Lewis W. Wannamaker
From The Rockefeller Institute for Medical Research
Search for other works by this author on:
Lewis W. Wannamaker
From The Rockefeller Institute for Medical Research
Received:
January 27 1958
Online ISSN: 1540-9538
Print ISSN: 0022-1007
Copyright, 1958, by The Rockefeller Institute for Medical Research New York
1958
J Exp Med (1958) 107 (6): 783–795.
Article history
Received:
January 27 1958
Citation
Lewis W. Wannamaker; ELECTROPHORETIC STUDIES OF THE EXTRACELLULAR PRODUCTS OF GROUP A STREPTOCOCCI . J Exp Med 1 June 1958; 107 (6): 783–795. doi: https://doi.org/10.1084/jem.107.6.783
Download citation file:
Suggested Content
Email alerts
Advertisement