Singlet oxygen production from the peroxidase catalyzed formation of styrene glutathione adducts.

Abstract:

:Recently, Stock et al. (J. Biol. Chem. 261, 15915-15922 [1986]) described a model enzyme system composed of horseradish peroxidase, hydrogen peroxide, phenol, glutathione and styrene. This system forms glutathione-styrene conjugates. Glutathione radicals and carbon-centered radicals are intermediates in this process. In the present study, this model enzyme system was also shown to generate singlet oxygen, probably via a Russell mechanism. No singlet oxygen was generated in the absence of styrene. Thus, contrary to prior suggestions, the reaction of glutathione radical with oxygen to produce a thiyl peroxyl radical is not a significant source of singlet oxygen.

authors

Kanofsky JR

doi

10.1016/0006-291x(89)92215-8

subject

Has Abstract

pub_date

1989-03-31 00:00:00

pages

1051-4

issue

3

eissn

0006-291X

issn

1090-2104

pii

0006-291X(89)92215-8

journal_volume

159

pub_type

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