Effects of radiations on catalase solutions. 2. The protecting action of complexing agents
- 1 November 1956
- journal article
- research article
- Published by Portland Press Ltd. in Biochemical Journal
- Vol. 64 (3) , 456-460
- https://doi.org/10.1042/bj0640456
Abstract
Catalase solutions are protected against X-ray inactivation when the iron centers in catalase are complexed with HCN. Some, but not all, of the evidence relating to protection by H2O2 can be explained on a similar basis. A 2d mechanism of protection by hydrogen must predominate over that due to its complexing action. Spectroscopic studies in the presence of HCN show that the protein portion of catalase may be damaged by radiation without loss of catalytic activity. It is concluded that the major inactivating effect of X-rays on catalase solutions is localized on the Fe centers.Keywords
This publication has 7 references indexed in Scilit:
- Effects of radiations on catalase solutions. 1. Kinetic studies of inactivationBiochemical Journal, 1956
- Delayed Toxicity of Radiostrontium in MonkeysNature, 1955
- Studies on the mechanism of action of ionizing radiations. IX. The effect of x-irradiation on cytochrome cArchives of Biochemistry and Biophysics, 1952
- The mechanism of catalase action. I. Steady-state analysisArchives of Biochemistry and Biophysics, 1952
- ABSORPTION SPECTRA OF PROTEINS AND AMINO ACIDS AFTER ULTRAVIOLET IRRADIATIONJournal of Biological Chemistry, 1950
- An Intermediate Compound in the Catalase-hydrogen peroxide Reaction.Acta Chemica Scandinavica, 1947
- The effect of X-rays on enzymesBiochemical Journal, 1940