Emerging role of DYRK family protein kinases as regulators of protein stability in cell cycle control.

Emerging role of DYRK family protein kinases as regulators of protein stability in cell cycle control.
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DOI:
10.4161/cc.21404
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发表时间:
2012-09-15
期刊:
Cell cycle (Georgetown, Tex.)
影响因子:
--
通讯作者:
Becker W
Becker W
中科院分区:
其他
文献类型:
--
作者:
Becker W

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双特异性酪氨酸磷酸化调节激酶(DYRKs)是一个进化上保守的蛋白激酶家族,在细胞增殖和分化的调控中起着关键作用。DYRK家族的成员磷酸化许多底物,包括细胞周期的关键调节因子。最近的一份报告显示,人类DYRK 2通过磷酸化c-Jun和c-Myc,从而诱导泛素化介导的降解,作为G1/S转换的负调节因子。其他DYRKs也通过调节其靶蛋白的周转而作为细胞周期调节剂发挥作用。DYRK 1B可以通过靶向细胞周期蛋白D1进行蛋白酶体降解和稳定p27 Kip 1而诱导可逆的细胞停滞在静止的G 0状态。DYRK 2是C.秀丽隐杆线虫MBK-2在减数分裂后触发卵母细胞蛋白的蛋白酶体破坏,以允许胚胎发育中的有丝分裂。本文综述了DYRKs在调节蛋白质稳定性中的作用。
Dual-specificity tyrosine phosphorylation-regulated kinases (DYRKs) constitute an evolutionarily conserved family of protein kinases with key roles in the control of cell proliferation and differentiation. Members of the DYRK family phosphorylate many substrates, including critical regulators of the cell cycle. A recent report revealed that human DYRK2 acts as a negative regulator of G1/S transition by phosphorylating c-Jun and c-Myc, thereby inducing ubiquitination-mediated degradation. Other DYRKs also function as cell cycle regulators by modulating the turnover of their target proteins. DYRK1B can induce reversible cell arrest in a quiescent G0 state by targeting cyclin D1 for proteasomal degradation and stabilizing p27Kip1. The DYRK2 ortholog of C. elegans, MBK-2, triggers the proteasomal destruction of oocyte proteins after meiosis to allow the mitotic divisions in embryo development. This review summarizes the accumulating results that provide evidence for a general role of DYRKs in the regulation of protein stability.
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