Nucleator
Mostrando 13-19 de 19 artigos, teses e dissertações.
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13. Cloning and Functional Characterization of a Formin-Like Protein (AtFH8) from Arabidopsis1
The actin cytoskeleton is required for many cellular processes in plant cells. The nucleation process is the rate-limiting step for actin assembly. Formins belong to a new class of conserved actin nucleator, which includes at least 2 formin homology domains, FH1 and FH2, which direct the assembly of unbranched actin filaments. The function of plant formins i
American Society of Plant Biologists.
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14. The ActA polypeptides of Listeria ivanovii and Listeria monocytogenes harbor related binding sites for host microfilament proteins.
The surface-bound ActA polypeptide of the intracellular bacterial pathogen Listeria monocytogenes acts as a nucleator protein, generating the actin cytoskeleton around intracellularly motile bacteria. In this work, we examined the functional similarity of ActA from Listeria ivanovii (iActA) ATCC 19119 to its L. monocytogenes counterpart. The amino acid seque
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15. Involvement of the Arp2/3 Complex and Scar2 in Golgi Polarity in Scratch Wound Models
Cell motility and cell polarity are essential for morphogenesis, immune system function, and tissue repair. Many animal cells move by crawling, and one main driving force for movement is derived from the coordinated assembly and disassembly of actin filaments. As tissue culture cells migrate to close a scratch wound, this directional extension is accompanied
The American Society for Cell Biology.
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16. Characterization and Quantification of Intrinsic Ice Nucleators in Winter Rye (Secale cereale) Leaves.
Extracellular ice formation in frost-tolerant organisms is often initiated at specific sites by ice nucleators. In this study, we examined ice nucleation activity (INA) in the frost-tolerant plant winter rye (Secale cereale). Plants were grown at 20[deg]C, at 5[deg]C with a long day, and at 5[deg]C with a short day (5[deg]C-SD). The threshold temperature for
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17. Fate of Ice Nucleation-Active Pseudomonas syringae Strains in Alpine Soils and Waters and in Synthetic Snow Samples
The stability of the ice nucleation activity (INA) and viability of INA Pseudomonas syringae 31a, used as an ice nucleator in the manufacture of synthetic snow, was determined in snow. The viability of P. syringae 1-2b, a rifampin-resistant mutant selected from strain 31a to improve recovery from test samples, was determined in laboratory tests of three alpi
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18. Activation of Arp2/3 complex-dependent actin polymerization by plant proteins distantly related to Scar/WAVE
The Arp2/3 complex, a highly conserved nucleator of F-actin polymerization, plays a key role in the regulation of actin dynamics eukaryotic cells. In animal cells and yeasts, Wiskott-Aldrich Syndrome protein (WASP)/suppressor of cAMP receptor (Scar)/WASP family verprolin homologous (WAVE) family proteins activate the Arp2/3 complex in response to localized c
National Academy of Sciences.
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19. The Formin Homology 1 Domain Modulates the Actin Nucleation and Bundling Activity of Arabidopsis FORMIN1W⃞
The organization of actin filaments into large ordered structures is a tightly controlled feature of many cellular processes. However, the mechanisms by which actin filament polymerization is initiated from the available pool of profilin-bound actin monomers remain unknown in plants. Because the spontaneous polymerization of actin monomers bound to profilin
American Society of Plant Biologists.