Streptococcus Mutans Pathogenicity
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Estudo do papel do sistema de captação de fosfato inorgânico (Pst) na fisiologia e patogênese de Streptococcus mutans. / Study of the role of inorganic phosphate uptake system (Pst) in the physiology and pathogenesis of Streptococcus mutans.
O fosfato inorgânico é um composto essencial por estar relacionado com diversos processos metabólicos e biossíntese de moléculas relevantes à sobrevivência celular. Em bactéria são conhecidos dois tipos principais de transportadores específicos de fosfato inorgânico, o sistema Pit, de baixa afinidade, e o sistema Pst de alta afinidade, um ABC tran
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/01/2011
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2. Diminished Virulence of Glucan Synthesis-Defective Mutants of Streptococcus mutans
The virulence of cell surface-associated, glucan synthesis-defective mutants of Streptococcus mutans strain 6715-13 was studied. Representatives from three groups of such mutants were tested for their pathogenicity in conventionalized, specific pathogen-free rats and gnotobiotic rats. The mutants differ from the wild-type strain in that each failed to form p
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3. Biochemical characterization and evaluation of virulence of a fructosyltransferase-deficient mutant of Streptococcus mutans V403.
The Streptococcus mutans extracellular fructosyltransferase (FTF) enzyme may play a role in the formation of dental caries by synthesizing a fructan polymer that serves as an extracellular storage polysaccharide. We sought to determine if an FTF-deficient strain of S. mutans was less virulent than wild-type cells in a rat animal model system. Cloned ftf gene
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4. Novel Two-Component Regulatory System Involved in Biofilm Formation and Acid Resistance in Streptococcus mutans
The abilities of Streptococcus mutans to form biofilms and to survive acidic pH are regarded as two important virulence determinants in the pathogenesis of dental caries. Environmental stimuli are thought to regulate the expression of several genes associated with virulence factors through the activity of two-component signal transduction systems. Yet, littl
American Society for Microbiology.