Immunochemical study on the pathway of electron flow in reduced nicotinamide adenine dinucleotide-dependent microsomal lipid peroxidation.

Immunochemical study on the pathway of electron flow in reduced nicotinamide adenine dinucleotide-dependent microsomal lipid peroxidation. Research Abstract Details 

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Immunochemical study on the pathway of electron flow in reduced nicotinamide adenine dinucleotide-dependent microsomal lipid peroxidation. Abstract Text:

Y Hirokata,A Shigematsu,T Omura,

NADH could support the lipid peroxidation of rat liver microsomes in the presence of ferric ions chelated by ADP(ADP-Fe). The reaction had a broad pH optimum (pH 5.8--7.4) and was more active in the acidic pH range. Antibodies to NADH-cytochrome b5 reductase [EC 1.6.2.2] and cytochrome b5 inhibited NADH-dependent lipid peroxidation in the presence of ADP-Fe, whereas the antibody against NADPH-cytochrome c reductase [EC 1.6.2.4] showed no inhibition. These oberservations suggest that the electron from NADH was supplied to the lipid peroxidation reaction via NADH-cytochrome b5 reductase and cytochrome b5. On the other hand, NADPH-supported lipid peroxidation was strongly inhibited by the antibody against NADPH-cytochrome c reductase, confirming the participation of this this flavoprotein in the NADPH-dependent reaction. In the presence of both ADP-Fe and ferric ions chelated by EDTA(EDTA-Fe), NADH-dependent lipid peroxidation was highly stimulated up to the level of the NADPH-dependent reaction. In this case, the antibody against cytochrome b5 could not inhibit the reaction, while the antibody against NADH-cytochrome b5 reductase did inhibit it, suggesting the direct transfer of electrons from NADH-cytochrome b5 reductase to EDTA-Fe complex.

Immunochemical study on the pathway of electron flow in reduced nicotinamide adenine dinucleotide-dependent microsomal lipid peroxidation. Publishing Authors By Initials

Y Hirokata,A Shigematsu,T Omura,

For similar animals: chordata: vertebrates: mammals: rodentia: muridae: murinae: rats research abstracts see: animals: chordata: vertebrates: mammals: rodentia: muridae: murinae: rats research

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Immunochemical study on the pathway of electron flow in reduced nicotinamide adenine dinucleotide-dependent microsomal lipid peroxidation. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of biochemistry

VOLUME: 83

Page Numbers: 431-40

Journal Abbreviation: J. Biochem.

ISSN: 0021-924X

DAY: 19

MONTH: Feb

YEAR: 1978

Immunochemical study on the pathway of electron flow in reduced nicotinamide adenine dinucleotide-dependent microsomal lipid peroxidation. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 376600

Immunochemical study on the pathway of electron flow in reduced nicotinamide adenine dinucleotide-dependent microsomal lipid peroxidation. Keywords Mesh Terms:

KEYWORDS: Rats

MESH TERMS: metabolism

Chemical & Substance for Abstract: Immunochemical study on the pathway of electron flow in reduced nicotinamide adenine dinucleotide-dependent microsomal lipid peroxidation. Information

Substance Name: Cytochrome Reductases

Registry Number: EC 1.6.2.-

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Country: JAPAN

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MEDLINETA: J Biochem

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