Rho Gtp Binding Proteins
Mostrando 1-12 de 102 artigos, teses e dissertações.
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1. Investigação do papel do óxido nítrico e de Rho GTPases na adesão de neutrófilos sob condições inflamatórias = : Investigation of the role of nitric oxide and Rho GTPases in neutrophils adhesion under inflammatory conditions / Investigation of the role of nitric oxide and Rho GTPases in neutrophils adhesion under inflammatory conditions
Durante a resposta inflamatória, os neutrófilos e outros leucócitos aderem ao endotélio, deixando os vasos sanguíneos e movimentando-se ativamente em direção ao foco inflamatório. A migração dos neutrófilos para sítios inflamatórios depende de uma série de eventos adesivos e quimiotáticos, resultantes da ativação de moléculas de adesão com
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/09/2012
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2. Papel da dissulfeto isomerase proteica (PDI) na migração de células musculares lisas vasculares: possível envolvimento de Nox1 NADPH oxidase e RhoGTPases / The role of protein disulfide isomerase (PDI) in vascular smooth muscle cell migration: possible interaction with Nox1 NADPH oxidase and RhoGTPases
A migração de células musculares lisas (VSMC) da camada média do vaso para a íntima é essencial para vasculogênese e contribui para o processo de aterosclerose e estenose após lesão por cateter-balão, caracterizando-se como um importante alvo terapêutico. Diversos trabalhos já demonstraram que fatores de crescimento (como PDGF e FGF) estimulam a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/02/2012
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3. Molecular cloning and characterization of rho, a ras-related small GTP-binding protein from the garden pea.
The rho proteins, members of the ras superfamily of small GTP-binding proteins, play a central role in the modulation of cellular functions involving the actin cytoskeleton such as in the establishment of cell polarity and morphology. As a first step in elucidating signal transduction pathways leading to processes mediated by the actin cytoskeleton in plants
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4. Ly-GDI, a GDP-dissociation inhibitor of the RhoA GTP-binding protein, is expressed preferentially in lymphocytes.
The Ras-related small GTP-binding proteins are involved in diverse cellular events, including cell signaling, proliferation, cytoskeletal organization, and secretion. The interconversion of the active, GTP-bound form of the protein to the inactive, GDP-bound form is influenced by two types of regulatory proteins, those that alter the intrinsic GTPase activit
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5. Rom1p and Rom2p are GDP/GTP exchange proteins (GEPs) for the Rho1p small GTP binding protein in Saccharomyces cerevisiae.
The RHO1 gene encodes a homolog of the mammalian RhoA small GTP binding protein in the yeast Saccharomyces cerevisiae. Rho1p is localized at the growth site and is required for bud formation. Multicopy suppressors of a temperature-sensitive, dominant negative mutant allele of RHO1, RHO1(G22S, D125N), were isolated and named ROM (RHO1 multicopy suppressor). R
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6. Abr and Bcr are multifunctional regulators of the Rho GTP-binding protein family.
Philadelphia chromosome-positive leukemias result from the fusion of the BCR and ABL genes, which generates a functional chimeric molecule. The Abr protein is very similar to Bcr but lacks a structural domain which may influence its biological regulatory capabilities. Both Abr and Bcr have a GTPase-activating protein (GAP) domain similar to those found in ot
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7. Rho guanine nucleotide dissociation inhibitor protein (RhoGDI) inhibits exocytosis in mast cells.
Introducing non-hydrolysable analogues of GTP into the cytosolic compartment of mast cells results in exocytotic secretion through the activation of GTP binding proteins. The identity and mechanism of action of these proteins are not established. We have investigated the effects of Rho GDP dissociation inhibitor (RhoGDI) on exocytosis induced by guanosine 5'
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8. Mapping of Ras-related GTP-binding proteins by GTP overlay following two-dimensional gel electrophoresis.
For identification of Rab, Rac, Rho, Ral, Rap, and Arf proteins on two-dimensional polyacrylamide gels, we have expressed full-length cDNAs of members of these protein families with the T7 RNA polymerase-recombinant vaccinia virus expression system. Membrane preparations from cells expressing the cDNAs were subjected to high-resolution two-dimensional polyac
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9. p190 RhoGAP, the major RasGAP-associated protein, binds GTP directly.
In mitogenically stimulated cells, a specific complex forms between the Ras GTPase-activating protein (RasGAP) and the cellular protein p190. We have previously reported that p190 contains a carboxy-terminal domain that functions as a GAP for the Rho family GTPases. Thus, the RasGAP-p190 complex may serve to couple Ras- and Rho-mediated signalling pathways.
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10. Involvement of rho p21 and its inhibitory GDP/GTP exchange protein (rho GDI) in cell motility.
Evidence is accumulating that rho p21, a ras p21-related small GTP-binding protein (G protein), regulates the actomyosin system. The actomyosin system is known to be essential for cell motility. In the present study, we examined the action of rho p21, its inhibitory GDP/GTP exchange protein (named rho GDI), its stimulatory GDP/GTP exchange protein (named smg
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11. The small GTP-binding proteins, Rac and Rho, regulate cytoskeletal organization and exocytosis in mast cells by parallel pathways.
In mast cells, activation of GTP-binding proteins induces centripetal reorganization of actin filaments. This effect is due to disassembly, relocalization, and polymerization of F-actin and is dependent on two small GTPases, Rac and Rho. Activities of Rac and Rho are also essential for the secretory function of mast cells. In response to GTP-gamma-S and/or c
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12. An SH3 domain-containing GTPase-activating protein for Rho and Cdc42 associates with focal adhesion kinase.
The integrin family of cell surface receptors mediates cell adhesion to components of the extracellular matrix (ECM). Integrin engagement with the ECM initiates signaling cascades that regulate the organization of the actin-cytoskeleton and changes in gene expression. The Rho subfamily of Ras-related low-molecular-weight GTP-binding proteins and several prot