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NRH:quinone oxidoreductase 2 (QR2) is a long forgotten oxidoreductive enzyme that metabolizes quinones and binds melatonin. We used the potency of the RNA interference (RNAi)-mediated gene silencing to build a cellular model in which the role of QR2 could be studied. Because standard approaches were poorly successful, we successively used: (1) two chemically synthesized fluorescent small interfering...
Melatonin acts through a series of molecular targets: the G-protein coupled receptors, MT 1 and MT 2 , and a third binding site, MT 3 , recently identified as the enzyme NRH:quinone oxydoreductase 2 (QR2). The relationship between the multiple physiological functions of melatonin and this enzyme remains unclear. Because of the relationship of QR2 with the redox status of cells,...
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