In vivo visualization of actin dynamics and actin interactions by BiFC

In vivo visualization of actin dynamics and actin interactions by BiFC
复制标题

DOI:
10.1016/j.cellbi.2007.03.025
复制
发表时间:
2007-10-01
影响因子:
3.9
通讯作者:
Schmid, Andreas
Schmid, Andreas
中科院分区:
生物学4区
文献类型:
--
作者:
Anderie, Ines;Schmid, Andreas

文献摘要

被引文献

相似文献

双分子荧光互补 (BiFC) 方法能够选择性地可视化蛋白质相互作用。虽然体外条件下 BiFC 复合物的形成被认为基本上是不可逆的,但有迹象表明,在体内条件下 BiFC 复合物的形成是可逆的。在本研究中,我们使用 BiFC 方法来可视化体内肌动蛋白细胞骨架动力学。我们证明在活细胞中肌动蛋白/肌动蛋白 BiFC 复合物的形成是可逆的。此外,我们还发现肌动蛋白和蛋白激酶 C δ (PKC δ) 之间存在异源结合。用佛波酯处理导致肌动蛋白/PKC δ复合物从细胞质易位到质膜,独立于完整的肌动蛋白细胞骨架。我们的实验表明 BiFC 方法可能是研究肌动蛋白细胞骨架参与细胞功能调节的有用工具。 (c) 2007 年国际细胞生物学联合会。由爱思唯尔有限公司出版。保留所有权利。
The method of bimolecular fluorescence complementation (BiFC) enables selective visualization of protein interactions. While BiFC complex formation under in vitro conditions is considered to be essentially irreversible, there are hints that under in vivo conditions BiFC complex formation can be reversible. In the present study we used the BiFC method to visualize in vivo actin cytoskeleton dynamics. We demonstrate that in living cells formation of actin/actin BiFC complexes is reversible. Furthermore, we show beterologous binding between actin and protein kinase C delta (PKC delta). Treatment with phorbol esters caused translocation of actin/PKC delta complexes from the cytosol to the plasma membrane independent of an intact actin cytoskeleton. Our experiments demonstrate that the BiFC method might be a useful tool to investigate participation of the actin cytoskeleton in regulation of cell function. (c) 2007 International Federation for Cell Biology. Published by Elsevier Ltd. All rights reserved.