Septins
Mostrando 1-12 de 37 artigos, teses e dissertações.
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1. Estudos funcionais e estruturais das septinas humanas 6, 8 e 10 / Functional and structural studies of human septin 6, 8 and 10
A cell passes through some steps to enable for cell division and all these processes are called Cell Cycle. The spatial and temporal regulation of this process is crucial to maintaining cellular and genetic material. Failure in this process can lead to cell death or genetic changes causing division and unregulated growth of tumors. Among several proteins inv
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/03/2010
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2. Caracterização funcional e estrutural das septinas humanas 1, 6 e 8 / Functional and structural characterization of human septins 1, 6 and 8
Septins have a central domain which binds GTP (GTPase domain) and two other variable domains at their N- and C-termim Their principal characteristic is the ability to bind to other septins, thereby forming filaments. This is intimately related to their functions in cytokinesis, exocytosis, and apoptosis, among others. They are also directly or indirectly ass
Publicado em: 2010
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3. Estudos estruturais de septinas: explorando interações entre subunidades de filamentos de septinas humanas / Structural studies of septins: exploring interactions between subunits of filaments of human septins
Septinas constituem uma família conservada de proteínas de citoesqueleto pertencentes à superclasse das P-loop GTPases. Tais proteínas estão envolvidas em vários processos celulares. Em humanos, algumas septinas também estão relacionadas a casos de patologia. Suas seqüências são divididas em três domínios: domínio N-terminal, domínio GTPase e
Publicado em: 2010
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4. Estudos estruturais e bioquímicos das septinas 7 e 9 humanas / Structural and biochemical studies of human septins 7 e 9
As proteínas pertencentes à família das septinas foram originalmente descobertas em 1971 em decorrencia de estudos genéticos em células mutantes. Essas proteínas encontradas em fungos e animais, mas não em plantas apresentam como principais características a presença de um domínio conservado de ligação aos nucleotídeos de guanina (GTP) e a forma
Publicado em: 2010
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5. Estudos estruturais do domínio GTPase isolado da septina humana SEPT4 e estrutura cristalográfica da Glutationa -S- Transferase de Xylella fastidiosa / Structural Studies of the GTPase domain from human SEPT4 and Crystallography Structure of Glutathione S-transferase from Xylella fastidiosa
The septins are a conserved family of guanine nucleotides-binding and hetero-filament forming. proteins. In mammals they are involved in a variety of cellular processes, such as cytokinesis, exocytosis, and vesicle trafficking. SEPT4 has been reported to accumulate in tau-based filamentous deposits and cytoplasmic inclusions in Alzheimers and Parkinsons dise
Publicado em: 2008
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6. Localization and possible functions of Drosophila septins.
The septins are a family of homologous proteins that were originally identified in Saccharomyces cerevisiae, where they are associated with the "neck filaments" and are involved in cytokinesis and other aspects of the organization of the cell surface. We report here the identification of Sep1, a Drosophila melanogaster septin, based on its homology to the ye
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7. The septins
The septins are guanine-nucleotide binding proteins that mostly form filaments. They are important in cytokinesis and also have roles in sporulation in yeasts and embryonic development and in the nervous system in animals.
BioMed Central.
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8. Cell Cycle-dependent Assembly of a Gin4-Septin Complex
Gin4, a Nim1-related kinase, is required in budding yeast for localization of the septins and for proper control of daughter cell growth during G2/M. Gin4 becomes hyperphosphorylated when cells enter mitosis, leading to activation of Gin4 kinase activity. In this study, we have used immunoaffinity chromatography to identify proteins that associate with
The American Society for Cell Biology.
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9. The Septin CDCrel-1 Is Dispensable for Normal Development and Neurotransmitter Release
Septins are GTPases required for the completion of cytokinesis in a variety of organisms, yet their role in this process is not known. Septins may have additional functions since the mammalian septin CDCrel-1 is predominantly expressed in the nervous system, a largely postmitotic tissue. While relatively little is known about the function of this protein, we
American Society for Microbiology.
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10. Septin Ring Assembly Requires Concerted Action of Polarisome Components, a PAK Kinase Cla4p, and the Actin Cytoskeleton in Saccharomyces cerevisiae
Septins are filament-forming proteins that function in cytokinesis in a wide variety of organisms. In budding yeast, the small GTPase Cdc42p triggers the recruitment of septins to the incipient budding site and the assembly of septins into a ring. We herein report that Bni1p and Cla4p, effectors of Cdc42p, are required for the assembly of the septin ring dur
The American Society for Cell Biology.
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11. Septin Function in Candida albicans MorphogenesisD⃞
The septin proteins function in the formation of septa, mating projections, and spores in Saccharomyces cerevisiae, as well as in cell division and other processes in animal cells. Candida albicans septins were examined in this study for their roles in morphogenesis of this multimorphic, opportunistically pathogenic fungus, which can range from round budding
The American Society for Cell Biology.
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12. Evidence for Functional Differentiation among Drosophila Septins in Cytokinesis and Cellularization
The septins are a conserved family of proteins that are involved in cytokinesis and other aspects of cell-surface organization. In Drosophila melanogaster, null mutations in the pnut septin gene are recessive lethal, but homozygous pnut mutants complete embryogenesis and survive until the pupal stage. Because the completion of cellularization and other
The American Society for Cell Biology.