Piezo proteins are pore-forming subunits of mechanically activated channels.

Piezo proteins are pore-forming subunits of mechanically activated channels.
复制标题

DOI:
10.1038/nature10812
复制
发表时间:
2012-02-19
期刊:
影响因子:
64.8
通讯作者:
Patapoutian, Ardem
Patapoutian, Ardem
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Coste, Bertrand;Xiao, Bailong;Santos, Jose S.;Syeda, Ruhma;Grandl, Joerg;Spencer, Kathryn S.;Kim, Sung Eun;Schmidt, Manuela;Mathur, Jayanti;Dubin, Adrienne E.;Montal, Mauricio;Patapoutian, Ardem

文献摘要

参考文献

被引文献

相似文献

机械转导在生理学中起着至关重要的作用。包括感应触摸和声波在内的生物过程需要尚未识别的检测压力的阳离子通道。小鼠piezo1 (mpiezo1)和mpiezo2在细胞内诱导机械激活的阳离子电流;然而,压电陶瓷是成孔离子通道还是调制离子通道尚不清楚。我们发现压电果蝇(piiezo)也在细胞中诱导机械激活电流,但通过具有显著不同孔隙特性的通道,包括对孔隙阻断剂钌红的敏感性和单通道电导。mpiezo1组装成约120万道尔顿的同质寡聚物,没有证据表明该复合物中存在其他蛋白质。最后,纯化的mpiezo1重组为不对称脂质双层,脂质体形成钌红敏感离子通道。这些数据表明,压电是一个进化上保守的离子通道家族参与机械转导。
Mechanotransduction plays a crucial role in physiology. Biological processes including sensing touch and sound waves require yet unidentified cation channels that detect pressure. Mouse piezo1 (mpiezo1) and mpiezo2 induce mechanically activated cationic currents in cells; however, it is unknown if piezos are pore-forming ion channels or modulate ion channels. We show that Drosophila piezo (dpiezo) also induces mechanically activated currents in cells, but through channels with remarkably distinct pore properties including sensitivity to the pore blocker ruthenium red and single channel conductances. mpiezo1 assembles as a ~1.2 million-Dalton homo-oligomer, with no evidence of other proteins in this complex. Finally, purified mpiezo1 reconstituted into asymmetric lipid bilayers and liposomes forms ruthenium red-sensitive ion channels. These data demonstrate that piezos are an evolutionarily conserved ion channel family involved in mechanotransduction.
DOI: 10.1039/b808893d
发表时间: 2008-12
影响因子: --
作者:
Bayley H;Cronin B;Heron A;Holden MA;Hwang WL;Syeda R;Thompson J;Wallace M
通讯作者: Wallace M
DOI: 10.1085/jgp.200810077
发表时间: 2008-12
期刊: The Journal of general physiology
影响因子: --
作者:
Santos JS;Grigoriev SM;Montal M
通讯作者: Montal M
DOI: 10.1073/pnas.0810187105
发表时间: 2008-12-09
影响因子: 11.1
作者:
Schmidt, Daniel;MacKinnon, Roderick
通讯作者: MacKinnon, Roderick
DOI: 10.1016/s0006-3495(79)85267-4
发表时间: 1979-01-01
影响因子: 3.4
作者:
COREY, DP;HUDSPETH, AJ
通讯作者: HUDSPETH, AJ
DOI: 10.1016/j.jmb.2008.06.085
发表时间: 2008-09-26
影响因子: 5.6
作者:
Tao, Xiao;MacKinnon, Roderick
通讯作者: MacKinnon, Roderick