Results 21 to 30 of about 406,325 (331)

Tubulin bond energies and microtubule biomechanics determined from nanoindentation in silico [PDF]

open access: yes, 2015
Microtubules, the primary components of the chromosome segregation machinery, are stabilized by longitudinal and lateral non-covalent bonds between the tubulin subunits.
Ataullakhanov, Fazly I.   +7 more
core   +1 more source

A tethered delivery mechanism explains the catalytic action of a microtubule polymerase

open access: yeseLife, 2014
Stu2p/XMAP215 proteins are essential microtubule polymerases that use multiple αβ-tubulin-interacting TOG domains to bind microtubule plus ends and catalyze fast microtubule growth.
Pelin Ayaz   +9 more
doaj   +1 more source

Mammalian kinetochores count attached microtubules in a sensitive and switch-like manner. [PDF]

open access: yes, 2019
The spindle assembly checkpoint (SAC) prevents anaphase until all kinetochores attach to the spindle. Each mammalian kinetochore binds many microtubules, but how many attached microtubules are required to turn off the checkpoint, and how the kinetochore ...
Akiyoshi   +80 more
core   +1 more source

Isolation of Microtubules and Microtubule Proteins

open access: yesCurrent Protocols in Cell Biology, 2008
AbstractThis unit describes various protocols for the isolation and purification of the main constituents of microtubules, chiefly α‐ and β‐tubulin, and the most significant microtubule associated proteins (MAPs), specifically MAP1A, MAP1B, MAP2, and tau.
Ávila, Jesús   +3 more
openaire   +3 more sources

She1 affects dynein through direct interactions with the microtubule and the dynein microtubule-binding domain

open access: yesNature Communications, 2017
Dynein is a microtubule motor the motility of which is affected by the microtubule-associated protein She1. Here, the authors show that She1 alters dynein stepping behavior and increases its microtubule affinity through simultaneous interactions with the
Kari H. Ecklund   +5 more
doaj   +1 more source

Molecular determinants of the Ska-Ndc80 interaction and their influence on microtubule tracking and force-coupling

open access: yeseLife, 2019
Errorless chromosome segregation requires load-bearing attachments of the plus ends of spindle microtubules to chromosome structures named kinetochores. How these end-on kinetochore attachments are established following initial lateral contacts with the ...
Pim J Huis in 't Veld   +4 more
doaj   +1 more source

The functions of kinesin and kinesin-related proteins in eukaryotes

open access: yesCell Adhesion & Migration, 2020
Kinesins constitute a superfamily of ATP-driven microtubule motor enzymes that convert the chemical energy of ATP hydrolysis into mechanical work along microtubule tracks. Kinesins are found in all eukaryotic organisms and are essential to all eukaryotic
Iftikhar Ali, Wei-Cai Yang
doaj   +1 more source

Coarse-Grained Simulation of Mechanical Properties of Single Microtubules With Micrometer Length

open access: yesFrontiers in Molecular Biosciences, 2021
Microtubules are one of the most important components in the cytoskeleton and play a vital role in maintaining the shape and function of cells. Because single microtubules are some micrometers long, it is difficult to simulate such a large system using ...
Jinyin Zha   +8 more
doaj   +1 more source

NAP (davunetide) rescues neuronal dysfunction in a Drosophila model of tauopathy [PDF]

open access: yes, 2013
Alzheimer’s disease (AD) is a devastating neurodegenerative disease causing irreversible cognitive decline in the elderly. There is no disease-modifying therapy for this condition and the mechanisms underpinning neuronal dysfunction and neurodegeneration
Cowan, C.M., Mudher, A., Quraishe, S.
core   +1 more source

CENP-F stabilizes kinetochore-microtubule attachments and limits dynein stripping of corona cargoes [PDF]

open access: yes, 2020
Accurate chromosome segregation demands efficient capture of microtubules by kinetochores and their conversion to stable bioriented attachments that can congress and then segregate chromosomes.
Allan   +80 more
core   +1 more source

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