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Pulse radiolysis of catalase in solution: Pt. 1. Reactions of O/sub 2//sup -/ with catalase and its Compound I

Abstract

The time-course of absorption changes of oxygen-saturated solutions of bovine-liver catalase after pulse radiolysis have been studied. The rate constant of formation of Compound I due to the reaction of catalase with hydrogen peroxide has been estimated to be 2.0 x 10/sup 7/ dm/sup 3/ mol/sup -1/s/sup -1/. Radiation generated super-oxide radicals reduce Compound I to Compound II with a rate constant of 5.0 x 10/sup 6/ dm/sup 3/ mol/sup -1/s/sup -1/. The formation of Compound III in the direct reaction of O/sub 2//sup -/ with catalase has also been observed.
Publication Date:
Jan 01, 1989
Product Type:
Journal Article
Reference Number:
AIX-20-029265; EDB-89-057680
Resource Relation:
Journal Name: Int. J. Radiat. Biol. Relat. Stud. Phys., Chem. Med.; (United Kingdom); Journal Volume: 55:1
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; CATALASE; RADIOLYSIS; HYDROGEN PEROXIDE; OXYGEN; PULSED IRRADIATION; REACTION KINETICS; CHEMICAL RADIATION EFFECTS; CHEMICAL REACTIONS; CHEMISTRY; DECOMPOSITION; ELEMENTS; ENZYMES; HYDROGEN COMPOUNDS; IRRADIATION; KINETICS; NONMETALS; OXIDOREDUCTASES; OXYGEN COMPOUNDS; PEROXIDASES; PEROXIDES; RADIATION CHEMISTRY; RADIATION EFFECTS; 560120* - Radiation Effects on Biochemicals, Cells, & Tissue Culture
OSTI ID:
6267671
Research Organizations:
Politechnika Lodzka (Poland). Katedra Chemii Radiacyjnej
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: IJRBA
Submitting Site:
INIS
Size:
Pages: 45-50
Announcement Date:
May 01, 1989

Citation Formats

Gebicka, Lidia, Metodiewa, Diana, and Gebicki, J L. Pulse radiolysis of catalase in solution: Pt. 1. Reactions of O/sub 2//sup -/ with catalase and its Compound I. United Kingdom: N. p., 1989. Web. doi:10.1080/09553008914550051.
Gebicka, Lidia, Metodiewa, Diana, & Gebicki, J L. Pulse radiolysis of catalase in solution: Pt. 1. Reactions of O/sub 2//sup -/ with catalase and its Compound I. United Kingdom. https://doi.org/10.1080/09553008914550051
Gebicka, Lidia, Metodiewa, Diana, and Gebicki, J L. 1989. "Pulse radiolysis of catalase in solution: Pt. 1. Reactions of O/sub 2//sup -/ with catalase and its Compound I." United Kingdom. https://doi.org/10.1080/09553008914550051.
@misc{etde_6267671,
title = {Pulse radiolysis of catalase in solution: Pt. 1. Reactions of O/sub 2//sup -/ with catalase and its Compound I}
author = {Gebicka, Lidia, Metodiewa, Diana, and Gebicki, J L}
abstractNote = {The time-course of absorption changes of oxygen-saturated solutions of bovine-liver catalase after pulse radiolysis have been studied. The rate constant of formation of Compound I due to the reaction of catalase with hydrogen peroxide has been estimated to be 2.0 x 10/sup 7/ dm/sup 3/ mol/sup -1/s/sup -1/. Radiation generated super-oxide radicals reduce Compound I to Compound II with a rate constant of 5.0 x 10/sup 6/ dm/sup 3/ mol/sup -1/s/sup -1/. The formation of Compound III in the direct reaction of O/sub 2//sup -/ with catalase has also been observed.}
doi = {10.1080/09553008914550051}
journal = []
volume = {55:1}
journal type = {AC}
place = {United Kingdom}
year = {1989}
month = {Jan}
}