首页> 外文期刊>Annual Review of Immunology >Multidomain Control Over TEC Kinase Activation State Tunes the T Cell Response
【24h】

Multidomain Control Over TEC Kinase Activation State Tunes the T Cell Response

机译:多域控制TEC激酶激活状态调谐T细胞响应

获取原文
获取原文并翻译 | 示例
       

摘要

Signaling through the T cell antigen receptor (TCR) activates a series of tyrosine kinases. Directly associated with the TCR, the SRC family kinase LCK and the SYK family kinase ZAP-70 are essential for all downstream responses to TCR stimulation. In contrast, the TEC family kinase ITK is not an obligate component of the TCR cascade. Instead, ITK functions as a tuning dial, to translate variations in TCR signal strength into differential programs of gene expression. Recent insights into TEC kinase structure have provided a view into the molecular mechanisms that generate different states of kinase activation. In resting lymphocytes, TEC kinases are autoinhibited, and multiple interactions between the regulatory and kinase domains maintain low activity. Following TCR stimulation, newly generated signaling modules compete with the autoinhibited core and shift the conformational ensemble to the fully active kinase. This multidomain control over kinase activation state provides a structural mechanism to account for ITK's ability to tune the TCR signal.
机译:通过T细胞抗原受体(TCR)的信号传导激活一系列酪氨酸激酶。与TCR直接相关,SRC系列激酶LCK和Syk系列激酶ZAP-70对于对TCR刺激的所有下游响应至关重要。相比之下,TEC系列激酶ITK不是TCR级联的迫使组件。相反,ITK用作调谐拨盘,以将TCR信号强度的变化转化为基因表达的差分程序。最近对TEC激酶结构的见解已经为产生不同激酶活化状态的分子机制提供了视图。在静息淋巴细胞中,TEC激酶是自动抑制的,并且调节和激酶结构域之间的多种相互作用维持低活性。在TCR刺激之后,新生成的信令模块与自动抑制的核心竞争并将构象集合移至完全活性激酶。这种多麦片控制通过激活激活状态提供了一种结构机制,以解释ITK调整TCR信号的能力。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号