Difference between revisions of "Puchowicz 2004 Mitochondrion"
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Latest revision as of 12:09, 9 December 2021
| Puchowicz MA, Varnes ME, Cohen BH, Friedman NR, Kerr DS, Hoppel CL (2004) Oxidative phosphorylation analysis: assessing the integrated functional activity of human skeletal muscle mitochondria-case studies. Mitochondrion 4:377-85. |
Puchowicz MA, Varnes ME, Cohen BH, Friedman NR, Kerr DS, Hoppel CL (2004) Mitochondrion
Abstract: Oxidative phosphorylation analysis, performed on freshly-isolated mitochondria, assesses the integrated function of the electron transport chain (ETC) coupled to ATP synthesis, membrane transport, dehydrogenase activities, and the structural integrity of the mitochondria. In this review, a case study approach is employed to highlight detection of defects in the adenine nucleotide translocator, the pyruvate dehydrogenase complex, fumarase, coenzyme Q function, fatty acid metabolism, and mitochondrial membrane integrity. Our approach uses the substrates glutamate, pyruvate, 2-ketoglutarate (coupled with malonate), malate, and fatty acid substrates (palmitoylcarnitine, octanoylcarnitine, palmitoyl-CoA (with carnitine), octanoyl-CoA (with carnitine), octanoate and acetylcarnitine) in addition to succinate, durohydroquinone and TMPD/ascorbate to uncover metabolic defects that would not be apparent from ETC assays performed on detergent-solubilized mitochondria. • Keywords: Oxidative phosphorylation; Skeletal muscle mitochondria; Adenine nucleotide translocator; Pyruvate dehydrogenase complex; Uncoupling; Carnitine palmitoyltransferase
• O2k-Network Lab: US OH Cleveland Hoppel CL
Cited by
- Gnaiger E (2020) Mitochondrial pathways and respiratory control. An introduction to OXPHOS analysis. 5th ed. Bioenerg Commun 2020.2. https://doi.org/10.26124/bec:2020-0002
- Gnaiger E et al ― MitoEAGLE Task Group (2020) Mitochondrial physiology. Bioenerg Commun 2020.1. doi:10.26124/bec:2020-0001.v1.
Labels:
Organism: Human
Tissue;cell: Skeletal muscle
Preparation: Isolated mitochondria
Enzyme: Inner mt-membrane transporter, TCA cycle and matrix dehydrogenases
Regulation: Substrate
Coupling state: OXPHOS
BEC 2020.1, BEC 2020.2
