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Reference: Chen SW, et al. (2013) Detection of suppressed maturation of the human COQ5 protein in the mitochondria following mitochondrial uncoupling by an antibody recognizing both precursor and mature forms of COQ5. Mitochondrion 13(2):143-52

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Abstract


Yeast Coq5p is required for the biosynthesis of coenzyme Q (CoQ), but its human homolog has not been studied. We purified soluble recombinant human COQ5 protein under native conditions and generated an antibody recognizing both precursor and mature forms of COQ5. Mitochondrial localization of the mature form in 143B cells was demonstrated with this antibody. Moreover, a chemical uncoupler in a dose that suppressed CoQ levels downregulated the mature form but augmented the precursor form of COQ5. The results that knockdown of the COQ5 gene reduced CoQ levels further indicated the critical role of COQ5 in the biosynthesis of CoQ.

Reference Type
Journal Article | Research Support, Non-U.S. Gov't
Authors
Chen SW, Liu CC, Yen HC
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