Kinesin-1 activity recorded in living cells with a precipitating dye.
Kinesin-1 activity recorded in living cells with a precipitating dye.
复制标题
DOI:
10.1038/s41467-021-21626-1
复制
发表时间:
2021-03-05
影响因子:
16.6
通讯作者:
Winssinger N
中科院分区:
文献类型:
--
作者:
Angerani S;Lindberg E;Klena N;Bleck CKE;Aumeier C;Winssinger N
Kinesin-1 is a processive motor protein that uses ATP-derived energy to transport a variety of intracellular cargoes toward the cell periphery. The ability to visualize and monitor kinesin transport in live cells is critical to study the myriad of functions associated with cargo trafficking. Herein we report the discovery of a fluorogenic small molecule substrate (QPD-OTf) for kinesin-1 that yields a precipitating dye along its walking path on microtubules (MTs). QPD-OTf enables to monitor native kinesin-1 transport activity in cellulo without external modifications. In vitro assays show that kinesin-1 and MTs are sufficient to yield fluorescent crystals; in cells, kinesin-1 specific transport of cargo from the Golgi appears as trails of fluorescence over time. These findings are further supported by docking studies, which suggest the binding of the activity-based substrate in the nucleotide binding site of kinesin-1. Monitoring the activity of the processive motor protein kinesin-1 in live cells is currently difficult. Here the authors report the fluorogenic small molecule QPD-OTf, a kinesin-1 substrate that causes activity-dependent dye precipitation.
登录
查看更多内容
DOI:
10.1083/jcb.140.6.1395
发表时间:
1998-03-23
期刊:
The Journal of cell biology
影响因子:
--
作者:
Hancock WO;Howard J
通讯作者:
Howard J
影响因子:
16.6
作者:
Bleck CKE;Kim Y;Willingham TB;Glancy B
通讯作者:
Glancy B
DOI:
10.1083/jcb.128.3.293
发表时间:
1995-02
期刊:
The Journal of cell biology
影响因子:
--
作者:
Lippincott-Schwartz J;Cole NB;Marotta A;Conrad PA;Bloom GS
通讯作者:
Bloom GS
DOI:
10.1016/j.str.2018.07.011
发表时间:
2018-11-06
期刊:
Structure (London, England : 1993)
影响因子:
--
作者:
Cockburn JJB;Hesketh SJ;Mulhair P;Thomsen M;O'Connell MJ;Way M
通讯作者:
Way M
影响因子:
4
作者:
Chyan W;Raines RT
通讯作者:
Raines RT