The extended PP1 toolkit: designed to create specificity.
The extended PP1 toolkit: designed to create specificity.
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DOI:
10.1016/j.tibs.2010.03.002
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发表时间:
2010-08
影响因子:
13.8
通讯作者:
Beullens, Monique
中科院分区:
文献类型:
--
作者:
Bollen, Mathieu;Peti, Wolfgang;Ragusa, Michael J.;Beullens, Monique
Protein Ser/Thr phosphatase-1 (PP1) catalyzes the majority of eukaryotic protein dephosphorylation reactions in a highly regulated and selective manner. Recent studies have identified an unusually diversified PP1 interactome with the properties of a regulatory toolkit. PP1-interacting proteins (PIPs) function as targeting subunits, substrates and/or inhibitors. As targeting subunits, PIPs contribute to substrate selection by bringing PP1 into the vicinity of specific substrates and by modulating substrate specificity via additional substrate docking sites or blocking substrate-binding channels. Many of the nearly 200 established mammalian PIPs are predicted to be intrinsically disordered, a property that facilitates their binding to a large surface area of PP1 via multiple docking motifs. These novel insights offer perspectives for the therapeutic targeting of PP1 by interfering with the binding of PIPs or substrates.
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