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Background Nitrate reductase (NR) in leaves is rapidly inactivated in the dark by a two-step mechanism in which phosphorylation of NR on the serine at position 543 (Ser543) promotes binding to nitrate reductase inhibitor protein (NIP). The eukaryotic 14-3-3 proteins bind to many mammalian signalling components (Raf-1, Bcr, phosphoinositide 3-kinase, protein kinase C, polyomavirus middle-T antigen...
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