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A possible model of hemoprotein-peroxide complexes formed in an iron-tetraphenylporphyrin system.

Abstract：

:A ferric low-spin species with an anomalously small g3-g1 separation generated by the reaction of Fe(III)tetraphenylporphyrin with t-butylhydroperoxide in the presence of tatramethylammonium hydroxide was characterized by ESR spectroscopy. The reaction kinetics, investigated by monitoring ESR intensity, indicated that this low-spin complex is highly reactive and easily changed to non-heme type iron complexes. The rhombic parameters of this complex are very similar to those of heme-peroxide adducts such as [Fe(II)-hemoglobin-O2]- and [Fe(II)-horseradish peroxidase-O2]-.

journal_name

Biochem Biophys Res Commun

journal_title

Biochemical and biophysical research communications

authors

Tajima K,Ishizu K,Sakurai H,Ohya-Nishiguchi H

doi

10.1016/0006-291x(86)91023-5

subject

Has Abstract

pub_date

1986-03-28 00:00:00

pages

972-8

issue

3

eissn

0006-291X

issn

1090-2104

pii

0006-291X(86)91023-5

journal_volume

135

pub_type

杂志文章

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