Results 71 to 80 of about 8,740 (224)

Three-dimensional flagella structures from animals’ closest unicellular relatives, the Choanoflagellates

open access: yeseLife, 2022
In most eukaryotic organisms, cilia and flagella perform a variety of life-sustaining roles related to environmental sensing and motility. Cryo-electron microscopy has provided considerable insight into the morphology and function of flagellar structures,
Justine M Pinskey   +7 more
doaj   +1 more source

Stochastic modeling of cargo transport by teams of molecular motors

open access: yes, 2013
Many different types of cellular cargos are transported bidirectionally along microtubules by teams of molecular motors. The motion of this cargo-motors system has been experimentally characterized in vivo as processive with rather persistent ...
A. Kunwar   +13 more
core   +1 more source

Directional instability of microtubule transport in the presence of kinesin and dynein, two opposite polarity motor proteins. [PDF]

open access: yes, 1992
Kinesin and dynein are motor proteins that move in opposite directions along microtubules. In this study, we examine the consequences of having kinesin and dynein (ciliary outer arm or cytoplasmic) bound to glass surfaces interacting with the same ...
Brown, D, Malik, F, Vale, RD
core   +2 more sources

Nuclear Entanglement: New Insights Into the Role of Cytoskeleton and Nucleoskeleton in Plant Nuclear Function

open access: yesCytoskeleton, EarlyView.
ABSTRACT Of the three types of cytoskeleton known in animals—actin, microtubules, and intermediate filaments—only actin and microtubules exist in plants. Both play important roles in cellular shaping, organelle movement, organization of the endomembrane system, and cell signaling.
Norman R. Groves   +3 more
wiley   +1 more source

Recruitment of two dyneins to an mRNA-dependent Bicaudal D transport complex

open access: yeseLife, 2018
We investigated the role of full-length Drosophila Bicaudal D (BicD) binding partners in dynein-dynactin activation for mRNA transport on microtubules. Full-length BicD robustly activated dynein-dynactin motility only when both the mRNA binding protein ...
Thomas E Sladewski   +7 more
doaj   +1 more source

Making Two out of One: Kinesin Motors Driving Plant Cell Division

open access: yesCytoskeleton, EarlyView.
ABSTRACT The Kinesin superfamily of microtubule dependent motors is present in all eukaryotes. Not all of the subfamilies are represented in all kingdoms, and the ones that are do not always show conserved functions. Tight control of the cytoskeleton is essential for proper progression and completion of mitosis and cytokinesis, and key functions are ...
Choy Kriechbaum, Sabine Müller
wiley   +1 more source

Computer Simulation of Flagellar Movement X. Doublet pair splitting and bend propagation modeled using stochastic dynein kinetics [PDF]

open access: yes, 2014
Experimental observations on cyclic splitting and bending by a flagellar doublet pair are modeled using forces obtained from a model for dynein mechanochemistry, based on ideas introduced by Andrew Huxley and Terrill Hill and extended previously for ...
Brokaw, Charles J.
core   +1 more source

Purification, Fluorescent Labeling, and Detyrosination of Mammalian Cell Tubulin for Biochemical Assays

open access: yesCytoskeleton, EarlyView.
ABSTRACT Microtubules play essential roles in numerous cellular processes. All microtubules are built from the protein tubulin, yet individual microtubules can differ spatially and temporally due to their tubulin isotype composition and post‐translational modifications (PTMs).
Ezekiel C. Thomas   +5 more
wiley   +1 more source

Dynein structure and power stroke [PDF]

open access: yes, 2003
Dynein ATPases are microtubule motors that are critical to diverse processes such as vesicle transport and the beating of sperm tails; however, their mechanism of force generation is unknown.
A Elliot   +40 more
core   +1 more source

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