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  • Title: Plant phosphopeptide-binding proteins as signaling mediators.
    Author: Gökirmak T, Paul AL, Ferl RJ.
    Journal: Curr Opin Plant Biol; 2010 Oct; 13(5):527-32. PubMed ID: 20638895.
    Abstract:
    Regulation of the activity, location, and interactions of proteins by phosphorylation is crucial for many cellular processes including regulation of signaling. Phosphorylation-dependent interactions between proteins are one outcome of phosphorylation that can contribute to that regulation. Several kinds of phosphopeptide-binding proteins have been characterized, but in plants only by the forkhead-associated (FHA) domain proteins and, predominantly, the 14-3-3 proteins exist. 14-3-3 proteins have been shown to interact with several different classes of phosphorylated target proteins throughout eukaryotes. Initially, plant 14-3-3s were thought to be primarily associated with metabolic enzyme regulation; however, recent years have seen an increasing number of reports describing roles of 14-3-3 proteins in signal transduction, with plant 14-3-3 proteins now shown to interact with key proteins in signaling pathways.
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