Antagonist Yeast
Mostrando 1-12 de 29 artigos, teses e dissertações.
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1. Anti-Candida and anti-quorum sensing activity of airborne microorganisms detected by a rapid method
Abstract INTRODUCTION: Introducing new antibiotics to the clinic is critical. METHODS: We adapted a plate method described by Kawaguchi and coworkers in 20131 for detecting inhibitory airborne microorganisms. RESULTS: We obtained 51 microbial colonies antagonist to Chromobacterium violaceum, purified and retested them, and of these, 39 (76.5%) were con
Rev. Soc. Bras. Med. Trop.. Publicado em: 17/01/2019
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2. Scanning electron microscopy of the interaction between Cryptococcus magnus and Colletotrichum gloeosporioides on papaya fruit
The objective of this work was to investigate possible modes of action of the yeast Cryptococcus magnus in controlling anthracnose (Colletotrichum gloeosporioides) on post harvested papaya fruits. Scanning electron microscopy was used to analyze the effect of the yeast on inoculations done after harvest. Results showed that C. magnus is able to colonize woun
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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3. GASTROPROTECTIVE AND ANTIMICROBIAL ACTIVITIES OF MATRICARIA RECUTITA (CAMOMILA) FLOWER EXTRACT AND ALPHA-BISABOLOL: POSSIBLE MECHANISMS OF ACTION / Potencial farmacolÃgico do extrato seco de matricaria recutita (Chamomilla) e do Alfa-Bisabolol
Matricaria recutita, commonly known as chamomile, is a plant species used in medicine due to its sedative properties, anti-inflammatory and healing, among others. Alpha-bisabolol, a sesquiterpene present in essential oil, also has several pharmacological activities recognized. This work evaluated the gastroprotective activity, antioxidant, antimicrobial and
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/08/2009
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4. Structural analyses of rab family GTPases and mechanism of Mafb regulation by the protein TIPRL / Analises estruturais de GTPases da familia RAB e mecanismo de regulção de MAFB pela proteina TIPRL
GTPases of the Rab family are responsible for the intracellular transport of vesicles. Each family member acts on a specific transport pathway and their function is regulated by GTP binding and hydrolysis, cycling between inactive (GDP-bound) and active (GTP-bound) forms. In this work, we describe the crystal structure of inactive and active forms of the GTP
Publicado em: 2007
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5. PADRONIZAÇÃO E VALIDAÇÃO DE UM NOVO MODELO DE FEBRE INDUZIDA PELA INJEÇÃO INTRATECAL DE PROSTAGLANDINA E2 EM RATOS JOVENS / CHARACTERIZATION AND VALIDATION OF A NEW FEVER MODEL INDUCED BY THE INTRATHECAL INJECTION OF PROSTAGLANDIN E2 IN YOUNG RATS
The fever response, besides being part of host defense response to infection or inflammation, is associated with discomfort and anxiety and may constitute a risk for febrile seizures in children. Therefore, antipyretic therapy is routinely prescribed for febrile patients. The animal models of fever using the systemic injection of lipopolysaccharide (LPS) and
Publicado em: 2006
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6. Efeito in vitro de Saccharomyces cerevisiae sobre Guignardia citricarpa, agente causal da pinta preta dos citros. / In vitro effect of Saccharomyces cerevisiae on Guignardia citricarpa, causal agent of citrus black spot.
Due to the consumers perception about the impact caused by pesticides utilization over the environment and human health, besides the acquisition of resistance for part of the phytopathogens, the society has exercised pressures that had led to the establishment of governmental politics that restrict the use of fungicides leading agriculturists and researchers
Publicado em: 2005
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7. Agonist-specific conformational changes in the yeast alpha-factor pheromone receptor.
The yeast alpha-factor pheromone receptor is a member of the G-protein-coupled receptor family. Limited trypsin digestion of yeast membranes was used to investigate ligand-induced conformational changes in this receptor. The agonist, alpha-factor, accelerated cleavage in the third intracellular loop, whereas the antagonist, desTrp1,Ala3-alpha-factor, reduced
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8. The third cytoplasmic loop of a yeast G-protein-coupled receptor controls pathway activation, ligand discrimination, and receptor internalization.
To identify functional domains of G-protein-coupled receptors that control pathway activation, ligand discrimination, and receptor regulation, we have used as a model the alpha-factor receptor (STE2 gene product) of the yeast Saccharomyces cerevisiae. From a collection of random mutations introduced in the region coding for the third cytoplasmic loop of Ste2
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9. Antifungal properties of the immunosuppressant FK-506: identification of an FK-506-responsive yeast gene distinct from FKB1.
FK-506 is a novel and potent antagonist of T-cell activation and an inhibitor of fungal growth. Its immunosuppressive activity can be antagonized by the structurally related antibiotic rapamycin, and both compounds interact with cytoplasmic FK-506-binding proteins (FKBPs) in T cells and yeast cells. In this paper, we show that FK-506 and two analogs inhibit
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10. Ethylene Perception by the ERS1 Protein in Arabidopsis1
Ethylene perception in Arabidopsis is controlled by a family of five genes, including ETR1, ERS1 (ethylene response sensor 1), ERS2, ETR2, and EIN4. ERS1, the most highly conserved gene with ETR1, encodes a protein with 67% identity to ETR1. To clarify the role of ERS1 in ethylene sensing, we biochemically characterized the ERS1 protein by heterologous expre
American Society of Plant Physiologists.
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11. Role of the two activating domains of the oestrogen receptor in the cell-type and promoter-context dependent agonistic activity of the anti-oestrogen 4-hydroxytamoxifen.
Various oestrogen responsive reporter genes and vectors expressing truncated or chimeric human oestrogen receptors (hER) containing either of the two independent hER transcriptional activation functions (TAF-1 and TAF-2) have been transfected into HeLa cells, chicken embryo fibroblast (CEF) or yeast cells to investigate the agonistic activity of the anti-oes
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12. High-affinity ouabain binding by yeast cells expressing Na+, K(+)-ATPase alpha subunits and the gastric H+, K(+)-ATPase beta subunit.
Recently, a beta subunit for the rat gastric H+,K(+)-ATPase (HK beta), which is structurally similar to the beta subunit of Na+, K(+)-ATPase, has been cloned and characterized. Using heterologous expression in yeast, we have tested the specificity of beta subunit assembly with different isoforms of the alpha subunit of Na+, K(+)-ATPase. Coexpression in yeast