Results 71 to 80 of about 29,473 (151)

Two Class XI Myosins Function in Organelle Trafficking and Root Hair Development in Arabidopsis [PDF]

open access: yesPlant Physiology, 2008
Multigene families encoding class XI myosins are conserved in higher plants, however, little information is available on specific functions of these ubiquitous molecular motors. We isolated gene knockout mutants for all 13 class XI myosins present in Arabidopsis (Arabidopsis thaliana) genome.
Valera V, Peremyslov   +3 more
openaire   +2 more sources

Contraction of cross-linked actomyosin bundles

open access: yes, 2012
Cross-linked actomyosin bundles retract when severed in vivo by laser ablation, or when isolated from the cell and micromanipulated in vitro in the presence of ATP.
Bonnet I   +12 more
core   +1 more source

Energetic costs, precision, and efficiency of a biological motor in cargo transport

open access: yes, 2018
Molecular motors play pivotal roles in organizing the interior of cells. A motor efficient in cargo transport would move along cytoskeletal filaments with a high speed and a minimal error in transport distance (or time) while consuming a minimal amount ...
Hwang, Wonseok, Hyeon, Changbong
core   +1 more source

A Microscopic Mechanism for Muscle's Motion

open access: yes, 2003
The SIRM (Stochastic Inclined Rods Model) proposed by H. Matsuura and M. Nakano can explain the muscle's motion perfectly, but the intermolecular potential between myosin head and G-actin is too simple and only repulsive potential is considered.
AI B Q   +19 more
core   +1 more source

Myosin XI Interacting with a RabE GTPase Is Required for Polarized Growth [PDF]

open access: yes, 2019
AbstractThe fundamental eukaryotic process of intracellular trafficking requires the interconnected activity of molecular motors trafficking vesicular cargo within a dynamic cytoskeletal network. However, in plants, few mechanistic details are known about how molecular motors associate with their secretory cargo to support the ubiquitous processes of ...
Orr, Robert G.   +9 more
openaire   +1 more source

Quantitative analysis of the root posture of Arabidopsis thaliana mutants with wavy roots

open access: yesQuantitative Plant Biology
Plant postures are affected by environmental stimuli. When the gravitational direction changes, the Arabidopsis thaliana mutants myosin xif xik (xif xik) and atp-binding cassette b19 (abcb19) exhibit aberrantly enhanced organ bending.
Hiroki Yagi   +2 more
doaj   +1 more source

PKCα and CPI-17 expression and spatial-temporal distribution with activation in pig stomach antrum and fundus [PDF]

open access: yes, 2010
Smooth muscle contraction is a complicated process coordinated by contractile, regulatory and cytoskeletal proteins. The force generation depends on the phosphorylation of Myosin Regulatory Light Chain (MLC20). Myosin Light Chain Kinase (MLCK) and Myosin
Zhang, Yu
core   +1 more source

ORYZA SATIVA MYOSIN XI B controls pollen development by photoperiod-sensitive protein localizations

open access: yesDevelopmental Biology, 2007
Myosins are actin-based motor proteins responsible for various motility and signal transduction. Only a small set of myosin classes is present inplants, and little is known about their functions. Here we showed how a rice myosin gene controlled pollen development by sensing changed environmental factors.
Jiang, S.-Y., Cai, M., Ramachandran, S.
openaire   +2 more sources

Motor-free actin bundle contractility driven by molecular crowding

open access: yes, 2015
Modeling approaches of suspended, rod-like particles and recent experimental data have shown that depletion forces display different signatures depending on the orientation of these particles.
B. U. Sebastian Schmidt   +8 more
core   +1 more source

The mean velocity of two-state models of molecular motor

open access: yes, 2011
The motion of molecular motor is essential to the biophysical functioning of living cells. In principle, this motion can be regraded as a multiple chemical states process.
Bieling P.   +7 more
core   +1 more source

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