Local direction change of surface gliding microtubules
Local direction change of surface gliding microtubules
复制标题
表面滑动微管的局部方向变化
DOI:
10.1002/bit.26933
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发表时间:
2019
影响因子:
3.8
通讯作者:
Choi, Jong Hyun
中科院分区:
文献类型:
--
作者:
Li, Feiran;Pan, Jing;Choi, Jong Hyun
In vitro gliding assay, microtubule translocation by kinesin motor proteins on a surface, has been used as an engineering tool in analyte detection, molecular cargo transport, and other applications. Although controlling the moving direction is often necessary to realize these applications, current direction control methods focus largely on lithographic microfabrication of tracks or external fields on the microtubules. These methods are effective, but are relatively complicated. In addition, they cannot target particular microtubules without affecting others. In this study, we propose a facile approach that can make local direction changes for selected microtubules using a polystyrene particle as a circular motion center and a DNA double helix with streptavidin as a capture arm. The DNA arm captures a microtubule in the close proximity of the immobilized particle via biotin–streptavidin interaction and changes the moving direction ~10° on average. In contrast, no significant direction changes are observed other than random variations with streptavidin‐less DNA arms (normal distribution centered at 0°), similar to regular motility assay. The particle‐assisted local direction change scheme is compared with a flow field‐based ensemble method. The combination of flow and kinesin interactions with each microtubule exerts a force to change the direction, ultimately aligning it to the flow field, regardless of its initial direction. A simple model based on the force balance predicts the time needed for such an alignment. Overall, the particle‐based local scheme is distinct and different from ensemble methods such as crossflow that changes directions of all microtubules in the field, thus offering unique utility in engineering applications.
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影响因子:
3.5
作者:
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通讯作者:
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影响因子:
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作者:
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Kakugo A
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
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通讯作者:
K. Sutoh
DOI:
10.1021/la2024499
发表时间:
2011
期刊:
Langmuir : the ACS journal of surfaces and colloids
影响因子:
--
作者:
M. K. Abdul Rahim;Tuyoshi Fukaminato;T. Kamei;N. Tamaoki
通讯作者:
N. Tamaoki
DOI:
10.1073/pnas.90.11.5209
发表时间:
1993
影响因子:
11.1
作者:
Russell J. Stewart;Joshua P. Thaler;Lawrence S. B. Goldstein
通讯作者:
Lawrence S. B. Goldstein