ArticleJournal of clinical biochemistry and nutrition2023
Method for detecting CoQ10 incorporation in the mitochondrial respiratory chain supercomplex.
Article in Journal of clinical biochemistry and nutrition, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed, 4 citations in OpenAlex.
- The effect of SIRT1 knockdown on the gene expression of CoQ10 biosynthetic enzymes.Journal of clinical biochemistry and nutrition · 2026Article
- Resveratrol is converted to the ring portion of coenzyme Q10 and raises intracellular coenzyme Q10 levels in HepG2 cell.Journal of clinical biochemistry and nutrition · 2024Article
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
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Abstract
Coenzyme Q10 is an important component of the mitochondrial electron transfer chain. A supercomplex of mitochondrial electron transfer system proteins exists. This complex also contains coenzyme Q10. The concentrations of coenzyme Q10 in tissues decrease with age and pathology. Coenzyme Q10 is given as a supplement. It is unknown whether coenzyme Q10 is transported to the supercomplex. We develop a method for measuring coenzyme Q10 in the mitochondrial respiratory chain supercomplex in this study. Blue native electrophoresis was used to separate mitochondrial membranes. Electrophoresis gels were cut into 3 mm slices. Hexane was used to extract coenzyme Q10 from this slice, and HPLC-ECD was used to analyze coenzyme Q10. Coenzyme Q10 was found in the gel at the same site as the supercomplex. Coenzyme Q10 at this location was thought to be coenzyme Q10 in the supercomplex. We discovered that 4-nitrobenzoate, a coenzyme Q10 biosynthesis inhibitor, reduced the amount of coenzyme Q10 both within and outside the supercomplex. We also observed that the addition of coenzyme Q10 to cells increased the amount of coenzyme Q10 in the supercomplex. It is expected to analysis coenzyme Q10 level in supercomplex in various samples by using this novel method.
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