Abstract
Long-chain alcohol dehydrogenase and long-chain aldehyde dehydrogenase were induced in the cells of Candida tropicalis grown on n-alkanes. Subcellular localization of these dehydrogenases, together with that of acyl-CoA synthetase and glycerol-3-phosphate acyltransferase, was studied in terms of the metabolism of fatty acids derived from n-alkane substrates. Both long-chain alcohol and aldehyde dehydrogenases distributed in the fractions of microsomes, mitochondria and peroxisomes obtained from the alkane-grown cells of C. tropicalis. Acyl-CoA synthetase was also located in these three fractions. Glycerol-3-phosphate acyltransferase was found in microsomes and mitochondria, in contrast to fatty acid beta-oxidation system localized exclusively in peroxisomes. Similar results of the enzyme localization were also obtained with C. lipolytica grown on n-alkanes. These results suggest strongly that microsomal and mitochondrial dehydrogenases provide long-chain fatty acids to be utilized for lipid synthesis, whereas those in peroxisomes supply fatty acids to be degraded via beta-oxidation to yield energy and cell constituents.
MeSH Terms
Acetate-CoA Ligase/metabolism
Alcohol Oxidoreductases/metabolism
Aldehyde Oxidoreductases/metabolism
Alkanes/metabolism
Candida/enzymology,metabolism
Glycerolphosphate Dehydrogenase/metabolism
Microbodies/enzymology
Microsomes/enzymology
Mitochondria/enzymology
Chemicals
Alkanes
Alcohol Oxidoreductases
Glycerolphosphate Dehydrogenase
Aldehyde Oxidoreductases
Acetate-CoA Ligase
Authors & Affiliations
5 authors, click to expand affiliations / ORCID
Yamada T
Nawa H
Kawamoto S
Tanaka A
Fukui S
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19 references, click to expand
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