Recombinant COQ9 protein (His tag)

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Recombinant Drosophila melanogaster Ubiquinone biosynthesis protein COQ9, mitochondrial (Coq9) fragment (residues 54-326) is a highly stable and soluble protein unit ideal for structural biology and biochemical studies. This fragment retains key functional characteristics, enabling researchers to investigate its role in membrane-associated ubiquinone biosynthesis with enhanced experimental versatility.

Ubiquinone biosynthesis protein COQ9 is a mitochondrial membrane-associated protein that plays a critical role in coenzyme Q (ubiquinone) biosynthesis. It functions by warping the membrane surface to specifically bind aromatic isoprenes, including ubiquinone intermediates, and directly presents them to Coq7 to facilitate the hydroxylase step. This activity is essential for aerobic cellular respiration, as coenzyme Q serves as a vital lipid-soluble electron transporter. The protein is localized to the mitochondrion, where it contributes to the electron transport chain and energy production processes.