Structural studies on the regulation of Ca2+/calmodulin dependent protein kinase II.

Structural studies on the regulation of Ca2+/calmodulin dependent protein kinase II.
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DOI:
10.1016/j.sbi.2013.04.002
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发表时间:
2013-04
影响因子:
6.8
通讯作者:
Kuriyan J
Kuriyan J
中科院分区:
生物学2区
文献类型:
--
作者:
Stratton MM;Chao LH;Schulman H;Kuriyan J

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Ca2+/calmodulin dependent protein kinase II (CaMKII)是一种广泛分布的后生动物丝氨酸/苏氨酸蛋白激酶,在神经元和心脏信号传导中起重要作用。CaMKII形成寡聚体组装,通常是十二聚体,其中钙响应激酶结构域围绕中心枢纽组织。我们回顾了CaMKII的晶体学分析结果,包括最近确定的全长和自抑制形式的全酶结构。这些结构与其他数据相结合,可以推测当钙峰值超过阈值频率时,CaMKII是如何摆脱钙依赖的。
Ca2+/calmodulin dependent protein kinase II (CaMKII) is a broadly distributed metazoan Ser/Thr protein kinase that is important in neuronal and cardiac signaling. CaMKII forms oligomeric assemblies, typically dodecameric, in which the calcium-responsive kinase domains are organized around a central hub. We review the results of crystallographic analyses of CaMKII, including the recently determined structure of a full-length and autoinhibited form of the holoenzyme. These structures, when combined with other data, allow informed speculation about how CaMKII escapes calcium-dependence when calcium spikes exceed threshold frequencies.
DOI: 10.1038/380636a0
发表时间: 1996-04-18
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