Studies on Thf, Enzymes of Pneumococcus
نویسندگان
چکیده
منابع مشابه
STUDIES ON OXIDATION AND REDUCTION BY PNEUMOCOCCUS. VI. TaE OXIDATION OF ENZYMES IN STERILE EXTRACTS OF PNEUMOCOCCUS. BY JAMES
Avery and Cullen (I, 2)have demonstrated that the pneumococcus cell contains the hydrolyzing enzymes (peptonase, lipase, sucrase, amylase, inulase) and a bacteriolytic enzyme. Cole (3) (1912), (4) (1914), has shown that pneumococci also possess a hemotoxin. These enzymes and the hemotoxin are endocellular, representing actual constituents of the cell, and consequently are demonstrable in steril...
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1. The systems responsible for oxidation and reduction in the pneumococcus cell have been shown to consist of two components, the nature of which has been discussed. 2. The oxidizing and reducing power of active extracts of pneumococci is inactivated by exposure to air. This loss in activity is due to an inactivation of the thermolabile cellular component consequent on secondary reactions analo...
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1. Pneumococci contain an intracellular enzyme of marked lipolytic activity as measured by the acid liberated by its action on tributyrin. 2. Enzyme-containing solutions may be prepared by dissolving pneumococci in bile, or by extraction by other means. 3. The optimum reaction for maximum activity of the endolipase is about pH 7.8, which coincides with the optimum hydrogen ion concentration for...
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1. Autolysis of Pneumococcus is accompanied by proteolysis, which results in an increase in amino and non-coagulable nitrogen. 2. Autolysis of Pneumococcus is accompanied by lipolysis during which there is a liberation of ether-soluble fatty acids. 3. When extracts containing the active intracellular enzymes are added to heat-killed pneumococci, lysis of the cells occurs and there is an increas...
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