ArticleJournal of bioenergetics and biomembranes2010
Essential role of copper in the activity and regular periodicity of a recombinant, tumor-associated, cell surface, growth-related and time-keeping hydroquinone (NADH) oxidase with protein disulfide-thiol interchange activity (ENOX2).
Article in Journal of bioenergetics and biomembranes, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
1 citing paper in PubMed, 13 citations in OpenAlex.
- The oxidative function of diferric transferrin.Biochemistry research international · 2012Article
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Authors and funding
8 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
ECTO-NOX proteins are growth-related cell surface proteins that catalyze both hydroquinone or NADH oxidation and protein disulfide interchange and exhibit time-keeping and prion-like properties. A bacterially expressed truncated recombinant 46 kDa ENOX2 with full ENOX2 activity bound ca 2 moles copper and 2 moles of zinc per mole of protein. Unfolding of the protein in trifluoroacetic acid in the presence of the copper chelator bathocuproine resulted in reversible loss of both enzymatic activities and of a characteristic pattern in the Amide I to Amide II ratios determined by FTIR with restoration by added copper. The H546-V-H together with His 562 form one copper binding site and H582 represents a second copper site as determined from site-directed mutagenesis. Bound copper emerges as having an essential role in ENOX2 both for enzymatic activity and for the structural changes that underly the periodic alternations in activity that define the time-keeping cycle of the protein.
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