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Title

Molecular Mechanism of Processive Stepping of Kinesin Motors.

Authors

Xie, Ping

Abstract

Kinesin-1 is a motor protein that can step processively on microtubule by hydrolyzing ATP molecules, playing an essential role in intracellular transports. To better understand the mechanochemical coupling of the motor stepping cycle, numerous structural, biochemical, single molecule, theoretical modeling and numerical simulation studies have been undertaken for the kinesin-1 motor. Recently, a novel ultraresolution optical trapping method was employed to study the mechanics of the kinesin-1 motor and new results were supplemented to its stepping dynamics. In this commentary, the new single molecule results are explained well theoretically with one of the models presented in the literature for the mechanochemical coupling of the kinesin-1 motor. With the model, various prior experimental results for dynamics of different families of N-terminal kinesin motors have also been explained quantitatively.

Subjects

STEPPING motors; MOLECULAR motor proteins; SINGLE molecules; KINESIN; MOTORCYCLES; FAMILY relations

Publication

Symmetry (20738994), 2021, Vol 13, Issue 10, p1799

ISSN

2073-8994

Publication type

Academic Journal

DOI

10.3390/sym13101799

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