Results 31 to 40 of about 4,736,786 (299)

Connecting macroscopic dynamics with microscopic properties in active microtubule network contraction

open access: yesNew Journal of Physics, 2017
The cellular cytoskeleton is an active material, driven out of equilibrium by molecular motor proteins. It is not understood how the collective behaviors of cytoskeletal networks emerge from the properties of the network’s constituent motor proteins and ...
Peter J Foster   +4 more
doaj   +1 more source

Kinesin Kip2 enhances microtubule growth in vitro through length-dependent feedback on polymerization and catastrophe

open access: yeseLife, 2015
The size and position of mitotic spindles is determined by the lengths of their constituent microtubules. Regulation of microtubule length requires feedback to set the balance between growth and shrinkage.
Anneke Hibbel   +7 more
doaj   +1 more source

Kinesin motility is driven by subdomain dynamics

open access: yeseLife, 2017
The microtubule (MT)-associated motor protein kinesin utilizes its conserved ATPase head to achieve diverse motility characteristics. Despite considerable knowledge about how its ATPase activity and MT binding are coupled to the motility cycle, the ...
Wonmuk Hwang   +2 more
doaj   +1 more source

Structures of kinesin motor proteins [PDF]

open access: yesCell Motility, 2009
AbstractAlmost 25 years of kinesin research have led to the accumulation of a large body of knowledge about this widespread superfamily of motor and nonmotor proteins present in all eukaryotic cells. This review covers developments in kinesin research with an emphasis on structural aspects obtained by X‐ray crystallography and cryoelectron microscopy 3‐
Marx, A., Hoenger, A., Mandelkow, E.
openaire   +3 more sources

DNA binding polarity, dimerization, and ATPase ring remodeling in the CMG helicase of the eukaryotic replisome

open access: yeseLife, 2014
The Cdc45/Mcm2-7/GINS (CMG) helicase separates DNA strands during replication in eukaryotes. How the CMG is assembled and engages DNA substrates remains unclear.
Alessandro Costa   +9 more
doaj   +1 more source

The motors of protein import into chloroplasts [PDF]

open access: yesPlant Signaling & Behavior, 2011
Chloroplast function is largely dependent on its resident proteins, most of which are encoded by the nuclear genome and are synthesized in cytosol. Almost all of these are imported through the translocons located in the outer and inner chloroplast envelope membranes. The motor protein that provides the driving force for protein import has been proposed
Shi, Lan-Xin, Theg, Steven M
openaire   +4 more sources

Serum Myonectin Levels Are Positively Associated With Physical Function and Lower Frailty‐Related Limitation in Maintenance Hemodialysis Patients: A Cross‐Sectional Study

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Maintenance hemodialysis (MHD) patients frequently suffer from frailty, characterized by reduced physical function and poor prognosis. Myokines, such as myonectin, secreted by muscle, are emerging regulators of systemic health. This study investigated the relationship between serum myonectin, adipokines (adiponectin, omentin), and ...
Kenichi Kono   +7 more
wiley   +1 more source

Stall force measurement of the kinesin-3 motor KIF1A using a programmable DNA origami nanospring

open access: yeseLife
DNA origami technology is a method for designing and constructing nanoscale structures using DNA, and it is being applied across various fields. This technology was advanced by developing the nanospring (NS), a fluorescently visible molecular spring that
Nobumichi Takamatsu   +4 more
doaj   +1 more source

Limited phenotypic effects of selectively augmenting the SMN protein in the neurons of a mouse model of severe spinal muscular atrophy. [PDF]

open access: yesPLoS ONE, 2012
The selective vulnerability of motor neurons to paucity of Survival Motor Neuron (SMN) protein is a defining feature of human spinal muscular atrophy (SMA) and indicative of a unique requirement for adequate levels of the protein in these cells. However,
Andrew J-H Lee   +3 more
doaj   +1 more source

Dual SMN inducing therapies can rescue survival and motor unit function in symptomatic ∆7SMA mice

open access: yesNeurobiology of Disease, 2021
Spinal muscular atrophy (SMA) is an autosomal recessive disease characterized by survival motor neuron (SMN) protein deficiency which results in motor neuron loss and muscle atrophy. SMA is caused by a mutation or deletion of the survival motor neuron 1 (
Kaitlyn M. Kray   +4 more
doaj   +1 more source

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