In vivo monitoring of plant small GTPase activation using a Förster resonance energy transfer biosensor.

In vivo monitoring of plant small GTPase activation using a Förster resonance energy transfer biosensor.
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使用 Forster 共振能量转移生物传感器体内监测植物小 GTP 酶激活

DOI:
10.1186/s13007-018-0325-4
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发表时间:
2018
期刊:
影响因子:
5.1
通讯作者:
Shimamoto K
Shimamoto K
中科院分区:
生物学2区
文献类型:
--
作者:
Wong HL;Akamatsu A;Wang Q;Higuchi M;Matsuda T;Okuda J;Kosami KI;Inada N;Kawasaki T;Kaneko-Kawano T;Nagawa S;Tan L;Kawano Y;Shimamoto K

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小GTP酶作为分子开关,调节各种植物反应,如抗病性,花粉管生长,根毛发育,细胞壁图案和激素反应。因此,监测它们在植物细胞中的激活状态被认为是了解它们作用的关键步骤。我们已经建立了一个植物版本的Förster共振能量转移(FRET)探针称为Ras和相互作用的蛋白质嵌合单位(Raichu),可以成功地监测激活的水稻小GTbaseOsRac 1在细胞中的各种防御反应。在这里,我们描述的协议可视化的时空活动的植物Rac/ROP GTdR在活的植物细胞,转染水稻原生质体Raichu-OsRac 1和收购的FRET图像。我们的协议应适用于监测激活其他植物小GTP酶和蛋白质-蛋白质相互作用的其他FRET传感器在各种植物细胞。
Small GTPases act as molecular switches that regulate various plant responses such as disease resistance, pollen tube growth, root hair development, cell wall patterning and hormone responses. Thus, to monitor their activation status within plant cells is believed to be the key step in understanding their roles. We have established a plant version of a Förster resonance energy transfer (FRET) probe called Ras and interacting protein chimeric unit (Raichu) that can successfully monitor activation of the rice small GTPase OsRac1 during various defence responses in cells. Here, we describe the protocol for visualizing spatiotemporal activity of plant Rac/ROP GTPase in living plant cells, transfection of rice protoplasts with Raichu-OsRac1 and acquisition of FRET images. Our protocol should be adaptable for monitoring activation for other plant small GTPases and protein–protein interactions for other FRET sensors in various plant cells.
DOI: 10.1083/jcb.143.5.1385
发表时间: 1998-11-30
期刊: The Journal of cell biology
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