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Motor Proteins. [PDF]

open access: yesCold Spring Harb Perspect Biol, 2018
Myosin motors power movements on actin filaments, whereas dynein and kinesin motors power movements on microtubules. The mechanisms of these motor proteins differ, but, in all cases, ATP hydrolysis and subsequent release of the hydrolysis products drives a cycle of interactions with the track (either an actin filament or a microtubule), resulting in ...
Sweeney HL, Holzbaur ELF.
europepmc   +5 more sources

Subangstrom single-molecule measurements of motor proteins using a nanopore. [PDF]

open access: yesNat Biotechnol, 2015
Techniques for measuring the motion of single motor proteins, such as FRET and optical tweezers, are limited to a resolution of ∼300 pm. We use ion current modulation through the protein nanopore MspA to observe translocation of helicase Hel308 on DNA ...
Derrington IM   +12 more
europepmc   +4 more sources

Engineered kinesin motor proteins amenable to small-molecule inhibition [PDF]

open access: yesNature Communications, 2016
The use of specific small molecule inhibitors can contribute to the study of kinesins' cellular functions. Here the authors develop a chemical-genetic approach to engineer kinesin motors that can be efficiently inhibited upon addition of cell-permeable ...
Martin F. Engelke   +10 more
doaj   +3 more sources

Role of motor proteins in human cancers. [PDF]

open access: yesSaudi J Biol Sci, 2022
Motor proteins include several protein families (Kinesin, Dynein and Myosin) responsible for intracellular transport, intercellular communication, among other functions.
Hassan Ibrahim I   +3 more
europepmc   +2 more sources

Motor proteins at the mitochondria-cytoskeleton interface.

open access: yesJ Cell Sci, 2021
Mitochondria are multifunctional organelles that not only produce energy for the cell, but are also important for cell signalling, apoptosis and many biosynthetic pathways.
Kruppa AJ, Buss F.
europepmc   +2 more sources

Structural basis for power stroke vs. Brownian ratchet mechanisms of motor proteins. [PDF]

open access: yesProc Natl Acad Sci U S A, 2019
Two mechanisms have been proposed for the function of motor proteins: The power stroke and the Brownian ratchet. The former refers to generation of a large downhill free energy gradient over which the motor protein moves nearly irreversibly in making a ...
Hwang W, Karplus M.
europepmc   +2 more sources

Simulated actin reorganization mediated by motor proteins. [PDF]

open access: yesPLoS Computational Biology, 2022
Cortical actin networks are highly dynamic and play critical roles in shaping the mechanical properties of cells. The actin cytoskeleton undergoes significant reorganization in many different contexts, including during directed cell migration and over ...
Maria-Veronica Ciocanel   +5 more
doaj   +2 more sources

Flagellar brake protein YcgR interacts with motor proteins MotA and FliG to regulate the flagellar rotation speed and direction [PDF]

open access: yesFrontiers in Microbiology, 2023
In E. coli and related species, flagellar brake protein YcgR responds to the elevated intracellular c-di-GMP, decreases the flagellar rotation speed, causes a CCW rotation bias, and regulates bacterial swimming. Boehm et al.
Qun Han   +11 more
doaj   +2 more sources

A Unified Walking Model for Dimeric Motor Proteins. [PDF]

open access: yesBiophys J, 2018
Dimeric motor proteins, kinesin-1, cytoplasmic dynein-1, and myosin-V, move stepwise along microtubules and actin filaments with a regular step size. The motors take backward as well as forward steps.
Sasaki K, Kaya M, Higuchi H.
europepmc   +2 more sources

Connecting two arrays: The emerging role of actin-microtubule cross-linking motor proteins

open access: yesFrontiers in Plant Science, 2015
The cytoskeleton of plant cells, consisting of actin filaments (AFs) and microtubules (MTs), is a central structure for various intracellular processes, such as cell division, isotropic and polar growth, vesicle transport, cell shape and morphogenesis ...
René eSchneider, Staffan ePersson
doaj   +2 more sources

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