Two Class XI Myosins Function in Organelle Trafficking and Root Hair Development in Arabidopsis [PDF]
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
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Contraction of cross-linked actomyosin bundles
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
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
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
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Myosin XI Interacting with a RabE GTPase Is Required for Polarized Growth [PDF]
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
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]
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
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
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
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

