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. 1994 Jun 30;201(3):1541-7.
doi: 10.1006/bbrc.1994.1879.

Peroxisomal acyl-coenzyme A oxidase is a rate-limiting enzyme in a very-long-chain fatty acid beta-oxidation system

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Peroxisomal acyl-coenzyme A oxidase is a rate-limiting enzyme in a very-long-chain fatty acid beta-oxidation system

T Aoyama et al. Biochem Biophys Res Commun. .

Abstract

The contents of peroxisomal fatty acid beta-oxidation enzymes in three rat hepatoma cell lines, i.e., H4IIEC3 (H4), N1S1, and McA-RH7777 (H7), were measured by immunoblot analysis, and a significant difference in acyl-coenzyme A oxidase (AOX) content became evident. These cell lines were respectively infected with a recombinant virus to express significant amounts of AOX protein. The expressed AOX mainly localized in organelle, supposing peroxisomes, and was catalytically active. The cDNA-expression in H4, N1S1, and H7 cells enhanced 2.6-, 2.2-, and 1.0-fold beta-oxidation activity of lignoceric acid, respectively. The enhancement in H4 and N1S1 cells suggests that AOX is a rate-limiting enzyme in the very-long-chain fatty acid beta-oxidation system, in these cell lines.

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