Results 21 to 30 of about 397,871 (335)

Altered chemomechanical coupling causes impaired motility of the kinesin-4 motors KIF27 and KIF7. [PDF]

open access: yes, 2018
Kinesin-4 motors play important roles in cell division, microtubule organization, and signaling. Understanding how motors perform their functions requires an understanding of their mechanochemical and motility properties.
Blasius, T Lynne   +7 more
core   +2 more sources

Centrosome Positioning in Dictyostelium: Moving beyond Microtubule Tip Dynamics

open access: yesCells, 2018
The variability in centrosome size, shape, and activity among different organisms provides an opportunity to understand both conserved and specialized actions of this intriguing organelle. Centrosomes in the model organism Dictyostelium sp.
Michael P. Koonce, Irina Tikhonenko
doaj   +1 more source

The molecular biology of tubulinopathies: Understanding the impact of variants on tubulin structure and microtubule regulation

open access: yesFrontiers in Cellular Neuroscience, 2022
Heterozygous, missense mutations in both α- and β-tubulin genes have been linked to an array of neurodevelopment disorders, commonly referred to as “tubulinopathies.” To date, tubulinopathy mutations have been identified in three β-tubulin isotypes and ...
Katelyn J. Hoff   +2 more
doaj   +1 more source

Recently recycled synaptic vesicles use multi-cytoskeletal transport and differential presynaptic capture probability to establish a retrograde net flux during ISVE in central neurons

open access: yesFrontiers in Cell and Developmental Biology, 2023
Presynapses locally recycle synaptic vesicles to efficiently communicate information. During use and recycling, proteins on the surface of synaptic vesicles break down and become less efficient.
Mason Parkes   +2 more
doaj   +1 more source

Dynamics of Microtubule Growth and Catastrophe [PDF]

open access: yes, 2007
We investigate a simple model of microtubule dynamics in which a microtubule evolves by: (i) attachment of guanosine triphosphate (GTP) to its end at rate lambda, (ii) GTP converting irreversibly to guanosine diphosphate (GDP) at rate 1, and (iii ...
Antal, T.   +4 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

Microtubules, microtubule-interfering agents and apoptosis

open access: yesApoptosis, 2003
Microtubules are dynamic polymers that play crucial roles in a large number of cellular functions. Their pivotal role in mitosis makes them a target for the development of anticancer drugs. Microtubule-damaging agents suppress microtubule dynamics, leading to disruption of the mitotic spindle in dividing cells, cell cycle arrest at M phase, and late ...
Mollinedo, Faustino, Gajate, Consuelo
openaire   +4 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

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