Effects of Neck Linker Length on Kinesin-1 Force Generation and Motility
نویسندگان
چکیده
منابع مشابه
Neck Linker Length Determines the Degree of Processivity in Kinesin-1 and Kinesin-2 Motors
Defining the mechanical and biochemical determinates of kinesin processivity is important for understanding how diverse kinesins are tuned for specific cellular functions. Because transmission of mechanical forces through the 14-18 amino acid neck linker domain underlies coordinated stepping, we investigated the role of neck linker length, charge, and structure in kinesin-1 and kinesin-2 motor ...
متن کاملForce generation in kinesin hinges on cover-neck bundle formation.
In kinesin motors, a fundamental question concerns the mechanism by which ATP binding generates the force required for walking. Analysis of available structures combined with molecular dynamics simulations demonstrates that the conformational change of the neck linker involves the nine-residue-long N-terminal region, the cover strand, as an element that is essential for force generation. Upon A...
متن کاملNeck Linker Length Determin
Defining the mechanical and biochemical determinates of kinesin processivity is important for understanding how diverse kinesins are tuned for specific cellular functions. Because transmission of mechanical forces through the 14–18 amino acid neck linker domain underlies coordinated stepping [1–6], we investigated the role of neck linker length, charge, and structure in kinesin-1 and kinesin-2 ...
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Kinesin-1, -2, -5, and -7 generate processive hand-over-hand 8-nm steps to transport intracellular cargoes toward the microtubule plus end. This processive motility requires gating mechanisms to coordinate the mechanochemical cycles of the two motor heads to sustain the processive run. A key structural element believed to regulate the degree of processivity is the neck-linker, a short peptide o...
متن کاملRole of the kinesin neck linker and catalytic core in microtubule-based motility
Kinesin motor proteins execute a variety of intracellular microtubule-based transport functions [1]. Kinesin motor domains contain a catalytic core, which is conserved throughout the kinesin superfamily, followed by a neck region, which is conserved within subfamilies and has been implicated in controlling the direction of motion along a microtubule [2] [3]. Here, we have used mutational analys...
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ژورنال
عنوان ژورنال: Biophysical Journal
سال: 2013
ISSN: 0006-3495
DOI: 10.1016/j.bpj.2012.11.2131