Coenzyme Q-binding protein COQ10 homolog A, mitochondrial (COQ10A)

COQ10A is a mitochondrial protein responsible for the assembly, stabilization, and function of the multiprotein "synthome" complex necessary for the biosynthesis of coenzyme Q10 (ubiquinone). Coenzyme Q10 is essential for mitochondrial oxidative phosphorylation, serving as an electron carrier within the electron transport chain and facilitating the production of ATP, the cell's primary energy source. The protein is required for proper mitochondrial function and protection against oxidative stress, as coenzyme Q10 also acts as a key lipid-soluble antioxidant in cell membranes. Deficiencies in components of the coenzyme Q10 biosynthesis pathway, such as COQ10A, lead to primary coenzyme Q10 deficiency and can result in multisystemic disorders, particularly affecting energy-demanding organs such as the brain, muscles, and kidneys. Therapeutic strategies may involve coenzyme Q10 supplementation, and statins can interfere with coenzyme Q10 biosynthesis by blocking a shared mevalonate pathway enzyme. The importance of coenzyme Q10 and its biosynthetic proteins extends to roles in aging, neurodegeneration, cardiovascular health, and resistance to oxidative stress. To summarize, COQ10A is a bona fide mitochondrial protein target essential for proper coenzyme Q10 biosynthesis and mitochondrial function, with significant implications for metabolic health, aging, and therapeutic intervention.

Other names

COQ10ACoenzyme Q10 homolog ACoenzyme Q10ACoenzyme Q-binding protein COQ10 homolog A, mitochondrialUNQ6192/PRO20219FLJ32452

Statins reduce biosynthesis of coenzyme Q10 by inhibiting HMG-CoA reductase, a key enzyme in the mevalonate pathway shared with cholesterol and coenzyme Q10 synthesis. Direct supplementation of coenzyme Q10 increases mitochondrial coenzyme Q10 levels and supports electron transport and ATP synthesis.