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. 1968 Dec;110(4):621–629. doi: 10.1042/bj1100621

The catalase–hydrogen peroxide system. A theoretical appraisal of the mechanism of catalase action

Peter Jones 1, A Suggett 1
PMCID: PMC1187433  PMID: 5704812

Abstract

1. The mechanisms of catalase action advanced by Jones & Wynne-Jones (1962) and by Nicholls (1964) are compared in terms of their relative plausibilities and their utility for extension to accommodate more recent experimental information. 2. A revised formal mechanism is advanced that avoids the less satisfactory features of these mechanisms and attempts to account for the roles of catalase sub-units in both reversible and irreversible deactivation phenomena. 3. Theoretical studies of the redox chemistry of peroxides are used to provide the basis for a discussion of the mechanism of the redox act in catalatic action at the molecular level. It is suggested that an important feature of catalase action may be a mediation of the formation of a reactive intermediate by stereospecifically located acid–base functions in the active site. 4. A more detailed statement of this concept is attempted in terms of a hypothetical partial molecular model for the composition and stereochemistry of the active site of catalase. The utility of this model in describing the catalatic and peroxidatic actions of catalase is assessed.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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