The human mitotic kinesin KIF18A binds protein phosphatase 1 (PP1) through a highly conserved docking motif
2014
Abstract Protein phosphatase 1 (PP1), a serine/threonine protein phosphatase, controls diverse key cellular events. PP1 catalytic subunits form complexes with a variety of interacting proteins that control its ability to dephosphorylate substrates. Here we show that the human mitotic kinesin-8, KIF18A, directly interacts with PP1γ through a conserved RVxF motif. Our phylogenetic analyses of the kinesins further uncovered the broad conservation of this interaction potential within the otherwise highly diverse motor-protein superfamily. This suggests an ancestral origin of PP1 recruitment to KIF18A and a strategic role in human mitotic cells.
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