AKAP-scaffolding proteins and regulation of cardiac physiology.

AKAP-scaffolding proteins and regulation of cardiac physiology.
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DOI:
10.1152/physiol.00041.2008
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发表时间:
2009-04
期刊:
Physiology (Bethesda, Md.)
影响因子:
--
通讯作者:
Bond M
Bond M
中科院分区:
其他
文献类型:
--
作者:
Mauban JR;O'Donnell M;Warrier S;Manni S;Bond M

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蛋白激酶锚定蛋白(AKAPs)是一类与蛋白激酶A调节亚基结合的功能相关蛋白,在多种细胞信号通路的时空调控中发挥着不可或缺的作用。该综述强调了AKAP在心脏兴奋/收缩偶联和心脏生理学中的广泛作用。文献表明,特定的AKAP参与了心肌钙离子的内流、释放、重摄取和心肌细胞复极。研究还表明,AKAP在心脏重塑中发挥了作用。转基因研究表明,AKAP的功能效应不仅在心血管系统,而且在其他器官系统也是如此。
A kinase anchoring proteins (AKAPs) compose a growing list of diverse but functionally related proteins defined by their ability to bind to the regulatory subunit of protein kinase A. AKAPs perform an integral role in the spatiotemporal modulation of a multitude of cellular signaling pathways. This review highlights the extensive role of AKAPs in cardiac excitation/contraction coupling and cardiac physiology. The literature shows that particular AKAPs are involved in cardiac Ca2+ influx, release, re-uptake, and myocyte repolarization. Studies have also suggested roles for AKAPs in cardiac remodeling. Transgenic studies show functional effects of AKAPs, not only in the cardiovascular system, but in other organ systems as well.
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