Type Iii Secretion System
Mostrando 1-12 de 304 artigos, teses e dissertações.
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1. Intestinal cell migration damage induced by enteropathogenic Escherichia coli strains
Epithelial cell migration is an essential response to enteric pathogens such as enteropathogenic Escherichia coli (EPEC). This study aimed to investigate the effects of EPEC infection on intestinal epithelial cell migration in vitro, as well as the involvement of type III secretion system (T3SS) and Rho GTPases. Crypt intestinal epithelial cells (IEC-6) were
Braz J Med Biol Res. Publicado em: 26/07/2018
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2. Establishment of an inducing medium for type III effector secretion in Xanthomonas campestris pv. campestris
It is well known that the type III secretion system (T3SS) and type III (T3) effectors are essential for the pathogenicity of most bacterial phytopathogens and that the expression of T3SS and T3 effectors is suppressed in rich media but induced in minimal media and plants. To facilitate in-depth studies on T3SS and T3 effectors, it is crucial to establish a
Braz. J. Microbiol.. Publicado em: 2013-09
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3. Efeito de ExoU na ativação de NF-κB e na secreção de IL-8 por células humanas infectadas por Pseudomonas aeruginosa / Effect of Exou on the activation of the NF-κB and the secretion of the IL-8 in human cells infected with Pseudomonas
ExoU, a cytotoxin produced by the opportunistic pathogen Pseudomonas aeruginosa that is translocated into host cell cytosol by the type three secretory system, has been associated with severity of acute infections. We have previously described the potent ExoU proinflammatory activity, which accounts for a market recruitment of neutrophils to infected tissues
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/07/2011
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4. Caracterização dos fatores sigma da RNA polimerase do fitopatógeno Xanthononas axonopodis pv. citri / Caracterization of RNA polimerase sigma factor of phythopathogen Xanthomonas axonopodis pv. citri.
A citricultura é de grande importância para as atividades agrícolas brasileiras, uma vez que o Brasil é o principal produtor e exportador de suco de laranja. O cancro cítrico, causado pela bactéria Xanthomonas axonopodis pv. citri (Xac) é um grave problema nesse setor, causando um elevado prejuízo na produção de frutos e seus derivados. O fator sig
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/10/2010
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5. Participação da proteína TtsI e flavonóides da ativação do Sistema de Secreção do Tipo III de Bradyrhizobium elkanii
Bradyrhizobium elkanii é uma bactéria de solo, que fixa nitrogênio e induz a formação de nódulos em soja [Glycine max (L.) Merrill] e outras plantas leguminosas. A interação entre as bactérias simbiontes e as plantas no solo ocorre de forma específica e depende de fatores tanto das plantas quanto das bactérias. Entre os fatores mais importantes ne
Publicado em: 2010
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6. Caracterização de prováveis genes do sistema de secreção tipo III em Escherichia coli de adesão difusa
The diffusely adhering Escherichia coli (DAEC) is a heterogeneous group and less characterized when compared to other pathotypes of E. coli. The fact that some strains are pathogenic and others not, creates doubts about the exact classification of this group. Contributes to it, the lack of molecular markers corresponding to the virulence genes of DAEC. Some
Publicado em: 2009
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7. DetecÃÃo de genes do Sistema de SecreÃÃo do Tipo III em Aeromonas hydrophila e sua relaÃÃo com a virulÃncia em tilÃpia do Nilo / Detection of the Type III Secretion System Genes in Aeromonas hydrophila and Its Relation with Virulence in Nile tilapia.
Aeromonas hydrophila à uma bactÃria patogÃnica para diversos hospedeiros dentre eles estÃo os seres humanos e os peixes O sistema de secreÃÃo do tipo III (T3SS) tem sido relatado como um dos mais importantes fatores de virulÃncia para bactÃrias Gram negativas incluindo A. hydrophila Neste estudo protocolos de PCR foram desenvolvidos para detectar os
Publicado em: 2009
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8. Development of a database for classification and analysis of type IV secretion systems / Desenvolvimento de um banco de dados para classificação e análise de sistemas de secreção do tipo IV bacteriano
The type IV secretion system can be classified as a large family of macromolecule transporters divided in three recognized sub-families involved in different bacterial functions. The major sub-family of T4SS is the conjugation system, which allows transfer of genetic material as a nucleoprotein via cell contact among bacteria. Analogously to bacterial conjug
Publicado em: 2008
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9. Strutural characterization of hypothetical proteins complex - XACb0032/XACb0033 from Xanthomonas axonopodis pv. citri / Caracterização estrutural do complexo de proteinas hipoteticas - XACb0032/XACb0033 da bacteria Xanthomonas axonopodis pv. citri
Xanthomonas axonopodis pv. citri (Xac) is the causative agent of citrus canker, a disease of significant economic importance worldwide. The molecular bases of the virulence mechanism are still unknown, but is believed that transfer of bacterial virulence proteins directly into the host cell cytoplasm is mediated by protein secretion systems, mainly type III
Publicado em: 2007
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10. Gene Expression in Xanthomonas axonopodis pv. citri Mediated by Plant Inducible Promoter (PIP-box) / "Expressão gênica em Xanthomonas axonopodis pv. citri controlada por promotores induzidos pela planta hospedeira"
The citrus canker, caused by the bacterial pathogen Xanthomonas axonopodis pv citri (Xac), is considered worldwide as one of the most important disease of citrus crop due to the lack of resistance in citrus plants and to the absence of efficient methods to control the disease. It was already shown that several genes involved in virulence and pathogenicity in
Publicado em: 2006
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11. AnÃlise da regulaÃÃo transcricional de genes de Yersinia em Escherichia coli
Yersiniae possess a type III secretion system, responsible for the translocation of proteins known as Yops, to the interior of the eukaryotic cells of the host. The YopH protein is a tyrosine phosphatase that desphosphorylates signalling molecules and impairs phagocytosis in macrophages. For its efficient secretion it needs the presence of the chaperone SycH
Publicado em: 2005
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12. Shigella Spa32 Is an Essential Secretory Protein for Functional Type III Secretion Machinery and Uniformity of Its Needle Length
The Shigella type III secretion machinery is responsible for delivering to host cells the set of effectors required for invasion. The type III secretion complex comprises a needle composed of MxiH and MxiI and a basal body made up of MxiD, MxiG, and MxiJ. In S. flexneri, the needle length has a narrow range, with a mean of approximately 45 nm, suggesting tha
American Society for Microbiology.