Integrin activation.

Integrin activation.
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DOI:
10.5483/bmbrep.2014.47.12.241
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发表时间:
2014-12
期刊:
影响因子:
3.8
通讯作者:
Ginsberg MH
Ginsberg MH
中科院分区:
生物学3区
文献类型:
--
作者:
Ginsberg MH

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整合素介导的细胞粘附对于发育、免疫反应、止血和伤口愈合很重要。整合素还充当信号转导受体,可以控制调节细胞存活、增殖和细胞命运的细胞内途径。相反,细胞可以调节整合素与其配体的亲和力,这一过程在操作上定义为整合素激活。对整合素激活的分析现在提供了对这种独特形式的“由内而外”信号转导的详细分子理解,并揭示了跨膜结构域(TMD)如何传递跨膜蛋白的长范围变构变化的新范例。在这里,我们将回顾talin如何介导整合素激活以及整合素TMD如何传递这些由内而外的信号。 [2014 年 BMB 报告; 47(12):655-659]
Integrin-mediated cell adhesion is important for development, immune responses, hemostasis and wound healing. Integrins also function as signal transducing receptors that can control intracellular pathways that regulate cell survival, proliferation, and cell fate. Conversely, cells can modulate the affinity of integrins for their ligands a process operationally defined as integrin activation. Analysis of activation of integrins has now provided a detailed molecular understanding of this unique form of “inside-out” signal transduction and revealed new paradigms of how transmembrane domains (TMD) can transmit long range allosteric changes in transmembrane proteins. Here, we will review how talin and mediates integrin activation and how the integrin TMD can transmit these inside out signals. [BMB Reports 2014; 47(12): 655-659]
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