Single-molecule stepping and structural dynamics of myosin X.
Single-molecule stepping and structural dynamics of myosin X.
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DOI:
10.1038/nsmb.1785
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发表时间:
2010-04
影响因子:
16.8
通讯作者:
中科院分区:
文献类型:
--
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Myosin X is an unconventional myosin with puzzling motility properties. We studied the motility of dimerized myosin X using single molecule fluorescence techniques – polTIRF, FIONA, and Parallax to measure rotation angles and 3-dimensional position of the molecule during its walk. It was found that Myosin X steps processively in a hand-over-hand manner following a left-handed helical path along both single actin filaments and bundles. Its step size and velocity are smaller on actin bundles than individual filaments, suggesting myosin X often steps onto neighboring filaments in a bundle. The data suggest that a previously postulated single α-helical domain mechanically extends the 3-IQ motif lever arm and either the neck-tail hinge or the tail is flexible. These structural features, in conjunction with the membrane and microtubule binding domains, enable myosin X to perform multiple functions on varied actin structures in cells.
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影响因子:
4.8
作者:
Homma, K;Ikebe, M
通讯作者:
Ikebe, M
影响因子:
64.8
作者:
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通讯作者:
Dogterom, Marileen
影响因子:
16
作者:
Mukherjea, Monalisa;Llinas, Paola;Kim, HyeongJun;Travaglia, Mirko;Safer, Daniel;Menetrey, Julie;Franzini-Armstrong, Clara;Selvin, Paul R.;Houdusse, Anne;Sweeney, H. Lee
通讯作者:
Sweeney, H. Lee
影响因子:
21.3
作者:
Berg, JS;Cheney, RE
通讯作者:
Cheney, RE
DOI:
10.1073/pnas.0602443103
发表时间:
2006-08-15
影响因子:
11.1
作者:
Bohil, Aparna B.;Robertson, Brian W.;Cheney, Richard E.
通讯作者:
Cheney, Richard E.