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. 1968 Nov;110(1):105–110. doi: 10.1042/bj1100105

The carnitine-independent oxidation of palmitate plus malate by moth flight-muscle mitochondria

Edmund Stevenson 1
PMCID: PMC1187114  PMID: 5722681

Abstract

Mitochondria isolated from the flight muscle of the southern armyworm moth, Prodenia eridania, can oxidize palmitate+malate very rapidly. Added carnitine had no effect on the rate of oxidation of palmitate+malate by flight-muscle mitochondria from two species of moths, and carnitine palmitoyltransferase could not be detected in Prodenia by direct assay. Palmitoylcarnitine was not oxidized by moth mitochondria, but when added in low concentrations it reversibly suppressed the oxidation of palmitate. The evidence indicates that carnitine is not involved in fatty acid degradation by moth flight muscle. Added thiols, including CoA, also suppressed palmitate+malate oxidation. An ATP-dependent fatty acyl-CoA synthetase is present in moth mitochondria.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. BODE C., KLINGENBERG M. DIE VERATMUNG VON FETTSAEUREN IN ISOLIERTEN MITOCHONDRIEN. Biochem Z. 1965 Feb 24;341:271–299. [PubMed] [Google Scholar]
  2. BREMER J. Carnitine in intermediary metabolism. The metabolism of fatty acid esters of carnitine by mitochondria. J Biol Chem. 1962 Dec;237:3628–3632. [PubMed] [Google Scholar]
  3. Bremer J. The effect of acylcarnitines on the metabolism of pyruvate in rat-heart mitochondria. Biochim Biophys Acta. 1965 Jul 8;104(2):581–590. doi: 10.1016/0304-4165(65)90364-8. [DOI] [PubMed] [Google Scholar]
  4. Childress C. C., Sacktor B. Pyruvate oxidation and the permeability of mitochondria from blowfly flight muscle. Science. 1966 Oct 14;154(3746):268–270. doi: 10.1126/science.154.3746.268. [DOI] [PubMed] [Google Scholar]
  5. FRITZ I. B., YUE K. T. LONG-CHAIN CARNITINE ACYLTRANSFERASE AND THE ROLE OF ACYLCARNITINE DERIVATIVES IN THE CATALYTIC INCREASE OF FATTY ACID OXIDATION INDUCED BY CARNITINE. J Lipid Res. 1963 Jul;4:279–288. [PubMed] [Google Scholar]
  6. KORNBERG A., PRICER W. E., Jr Enzymatic synthesis of the coenzyme A derivatives of long chain fatty acids. J Biol Chem. 1953 Sep;204(1):329–343. [PubMed] [Google Scholar]
  7. ONTKO J. A., JACKSON D. FACTORS AFFECTING THE RATE OF OXIDATION OF FATTY ACIDS IN ANIMAL TISSUES. EFFECT OF SUBSTRATE CONCENTRATION, PH, AND COENZYME A IN RAT LIVER PREPARATIONS. J Biol Chem. 1964 Nov;239:3674–3682. [PubMed] [Google Scholar]
  8. ROSSI C. R., GIBSON D. M. ACTIVATION OF FATTY ACIDS BY A GUANOSINE TRIPHOSPHATE-SPECIFIC THIOKINASE FROM LIVER MITOCHONDRIA. J Biol Chem. 1964 Jun;239:1694–1699. [PubMed] [Google Scholar]
  9. Stevenson E. Rapid oxidation of palmitate with concomitant phosphorylation of adenosine 5'-diphosphate by moth flight-muscle mitochondria. Biochim Biophys Acta. 1966 Oct 17;128(1):29–33. doi: 10.1016/0926-6593(66)90138-x. [DOI] [PubMed] [Google Scholar]
  10. Sumner J. B. A METHOD FOR THE COLORIMETRIC DETERMINATION OF PHOSPHORUS. Science. 1944 Nov 3;100(2601):413–414. doi: 10.1126/science.100.2601.413. [DOI] [PubMed] [Google Scholar]
  11. Taketa K., Pogell B. M. The effect of palmityl coenzyme A on glucose 6-phosphate dehydrogenase and other enzymes. J Biol Chem. 1966 Feb 10;241(3):720–726. [PubMed] [Google Scholar]
  12. van den BERGH S., SLATER E. C. The respiratory activity and permeability of housefly sarcosomes. Biochem J. 1962 Feb;82:362–371. doi: 10.1042/bj0820362. [DOI] [PMC free article] [PubMed] [Google Scholar]

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