Photo-reversal by monochromatic light of the carbon monoxide-inhibited heme degradation catalyzed by the reconstituted heme oxygenase system.

Photo-reversal by monochromatic light of the carbon monoxide-inhibited heme degradation catalyzed by the reconstituted heme oxygenase system. Research Abstract Details 

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Photo-reversal by monochromatic light of the carbon monoxide-inhibited heme degradation catalyzed by the reconstituted heme oxygenase system. Abstract Text:

M Noguchi,T Yoshida,G Kikuchi,

Photo-reversal of the carbon monoxide inhibition of heme oxygenase reaction by monochromatic light was investigated. Heme degradation in either the microsomal or the reconstituted heme oxygenase system was inhibited by CO. In both systems the extents of Co inhibition were dependent on the CO/O2 ratio and were nearly equal at a given CO/O2 ratio. In the reconstituted heme oxygenase reaction using a highly purified heme oxygenase preparation the relationship between the intensity of light and the degree of reversal of the CO inhibition of heme degradation as expressed in terms of delta K/Kd was not linear, but the tentatively obtained photochemical action spectrum exhibited the peaks of reversal at about 420, 540, 570, and 640 nm and suggested the occurrence of at least two steps of CO inhibition in the overall sequence of heme degradation. One could be ascribed to protoheme and the other was supposed to be the 688 nm compound which is an intermediate locating between hydroxyheme and the biliverdin-iron complex in the sequence of heme degradation.

Photo-reversal by monochromatic light of the carbon monoxide-inhibited heme degradation catalyzed by the reconstituted heme oxygenase system. Publishing Authors By Initials

M Noguchi,T Yoshida,G Kikuchi,

For similar animals: chordata: vertebrates: mammals: artiodactyla: swine research abstracts see: animals: chordata: vertebrates: mammals: artiodactyla: swine research

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Photo-reversal by monochromatic light of the carbon monoxide-inhibited heme degradation catalyzed by the reconstituted heme oxygenase system. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Journal of biochemistry

VOLUME: 90

Page Numbers: 1671-5

Journal Abbreviation: J. Biochem.

ISSN: 0021-924X

DAY: 19

MONTH: Dec

YEAR: 1981

Photo-reversal by monochromatic light of the carbon monoxide-inhibited heme degradation catalyzed by the reconstituted heme oxygenase system. Information

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LANGUAGE: eng

NlmUniqueID: 376600

Photo-reversal by monochromatic light of the carbon monoxide-inhibited heme degradation catalyzed by the reconstituted heme oxygenase system. Keywords Mesh Terms:

KEYWORDS: Swine

MESH TERMS: enzymology

Chemical & Substance for Abstract: Photo-reversal by monochromatic light of the carbon monoxide-inhibited heme degradation catalyzed by the reconstituted heme oxygenase system. Information

Substance Name: Heme Oxygenase (Decyclizing)

Registry Number: EC 1.14.99.3

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Country: JAPAN

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MEDLINETA: J Biochem

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