The Journal of General Physiology
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The Journal of General Physiology, Vol 6, 1-5, Copyright © 1923 by The Rockefeller University Press


ARTICLE

THE EFFECT OF RADIOACTIVE RADIATIONS AND X-RAYS ON ENZYMES

II. THE EFFECT OF RADIATIONS FROM RADIUM EMANATION ON PEPSIN IN SOLUTION.



Raymond G. Hussey 1 and William R. Thompson 1

1 From the Laboratory of Biophysical Research of The Memorial Hospital and the Department of Pathology, Cornell University Medical College, New York.

Pepsin in solution is inactivated by the radiations (beta and gamma) from radium emanation. This chemical effect has been studied quantitatively.

The principles involved in this radiochemical reaction are apparently the same as those found in the case of trypsin previously reported; namely, the change in the logarithm of the concentration of active enzyme varies directly with the variable, W.

Submitted on June 12, 1923


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