منابع مشابه
Polo-like kinase 4 shapes up.
Polo-like kinase 4 (Plk4) is a master regulator of centriole duplication and targets to centrioles through the association of its cryptic polo box domain with centriole receptors. In this issue of Structure, Shimanovskaya and colleagues unveil a new dimeric architecture of Plk4's cryptic polo box that reveals a conserved mechanism for centriole targeting of the kinase.
متن کاملNFκB regulates expression of Polo-like kinase 4
Activation of the NFκB signaling pathway allows the cell to respond to infection and stress and can affect many cellular processes. As a consequence, NFκB activity must be integrated with a wide variety of parallel signaling pathways. One mechanism through which NFκB can exert widespread effects is through controlling the expression of key regulatory kinases. Here we report that NFκB regulates ...
متن کاملPolo-like kinase 4 inhibition: a strategy for cancer therapy?
In this issue of Cancer Cell, Mason and colleagues describe the development of a Polo-like kinase 4 (PLK4) inhibitor (CFI-400945), with promising activity against tumors formed in mice from patient-derived tumor tissue. A clinical trial has been initiated, but questions remain as to whether PLK4 is the only relevant therapeutic target.
متن کاملAutoinhibition and relief mechanism for Polo-like kinase 4.
Polo-like kinase 4 (Plk4) is a master regulator of centriole duplication, and its hyperactivity induces centriole amplification. Homodimeric Plk4 has been shown to be ubiquitinated as a result of autophosphorylation, thus promoting its own degradation and preventing centriole amplification. Unlike other Plks, Plk4 contains three rather than two Polo box domains, and the function of its third Po...
متن کاملTwo Polo-like kinase 4 binding domains in Asterless perform distinct roles in regulating kinase stability
Plk4 (Polo-like kinase 4) and its binding partner Asterless (Asl) are essential, conserved centriole assembly factors that induce centriole amplification when overexpressed. Previous studies found that Asl acts as a scaffolding protein; its N terminus binds Plk4's tandem Polo box cassette (PB1-PB2) and targets Plk4 to centrioles to initiate centriole duplication. However, how Asl overexpression...
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ژورنال
عنوان ژورنال: Structure
سال: 2014
ISSN: 0969-2126
DOI: 10.1016/j.str.2014.07.004