Acid Phosphatases
Mostrando 1-12 de 287 artigos, teses e dissertações.
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1. Changes in digestive enzymes activities during the initial ontogeny of wolf cichlid, Parachromis dovii (Perciformes: Cichlidae)
ABSTRACT Wolf cichlid, Parachromis dovii, is a species with a high potential for aquaculture in Central America; however, the knowledge of the digestive physiology in larvae period is limited. For these reason, this study evaluated the changes on digestive enzymes (alkaline and acid proteases, trypsin, chymotrypsin, aminopeptidase, carboxypeptidase, lipases,
Neotrop. ichthyol.. Publicado em: 29/04/2019
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2. Control of Acid Phosphatases Expression from Aspergillus niger by Soil Characteristics
ABSTRACTThis work studied the acid phosphatase (APase) activity from culture medium (extracellular, eAPase) and mycelial extract (intracellular, iAPase) ofAspergillus niger F111. The influence of fungus growth and phosphate concentration of the media on the synthesis and secretion of phosphatase was demonstrated. The effects of pH, substrate concentration an
Braz. arch. biol. technol.. Publicado em: 2015-10
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3. Comparative analysis of human and bovine protein kinases reveals unique relationship and functional diversity
Reversible protein phosphorylation by protein kinases and phosphatases is a common event in various cellular processes. The eukaryotic protein kinase superfamily, which is one of the largest superfamilies of eukaryotic proteins, plays several roles in cell signaling and diseases. We identified 482 eukaryotic protein kinases and 39 atypical protein kinases in
Genetics and Molecular Biology. Publicado em: 19/08/2011
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4. Anthocephalus cadamba (Roxb.) Miq., Rubiaceae, extract shows hypoglycemic effect and eases oxidative stress in alloxan-induced diabetic rats
The hydroethanolic extract of the flowering tops of Anthocephalus cadamba (Roxb.) Miq., Rubiaceae, a Bangladeshi medicinal plant, was studied for its potential hypoglycemic effect and antioxidant property in alloxan-induced diabetic rats. The extract induced significant reduction in serum glucose, and transaminases, e.g. aspartate transaminase (AST), alanine
Revista Brasileira de Farmacognosia. Publicado em: 11/03/2011
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5. Phosphate solubilization potential and phosphatase activity of rhizospheric Trichoderma spp.
Trichoderma sp., a well known biological control agent against several phytopathogens, was tested for its phosphate (P) solubilizing potential. Fourteen strains of Trichoderma sp. were isolated from the forest tree rhizospheres of pinus, deodar, bamboo, guava and oak on Trichoderma selective medium. The isolates were tested for their in-vitro P-solubilizing
Brazilian Journal of Microbiology. Publicado em: 23/04/2010
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6. Bioindicadores de qualidade de solo em diferentes ecossistemas
Changes due to soil management and cultivated plant species may influence carbon, nitrogen and phosphorus cycling. Cycling depends on the integration of physical, chemical and mainly microbiological processes. This work assessed some microbial activity and processes related to carbon, nitrogen and phosphorus cycles in soil from six ecosystems in Guarapuava,
Publicado em: 2009
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7. Atividade de fosfatases em duas cepas de Trypanosoma cruzi
Trypanosoma cruzi, the etiological agent of Chagas`disease, displays a remarkably high degree of both, structural and functional intraspecific heterogeneity, which could modulate its pathogenicity, survival and adaptability. In higher eukaryotes, phosphorylation and dephosphorylation are fundamental pathways that regulate a wide variety of cellular events. T
Publicado em: 2008
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8. Uma perspectiva computacional sobre catálise enzimática
Enzymes are extremely efficient catalysts. Here, part of the mechanisms proposed to explain this catalytic power will be compared to quantitative experimental results and computer simulations. Influence of the enzymatic environment over species along the reaction coordinate will be analysed. Concepts of transition state stabilisation and reactant destabilisa
Quím. Nova. Publicado em: 2008
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9. Histology and histochemistry of the venom apparatus of the black scorpion Androctonus crassicauda (Olivier, 1807) (Scorpiones: Buthidae)
The venom apparatus of the black scorpion Androctonus crassicauda has been characterized histologically and histochemically in the present study. The results showed that this apparatus consists of paired venom glands, each of which initially presents its own canal and posteriorily both fuse into a single common one. Each gland is covered by a sheath of stria
Journal of Venomous Animals and Toxins including Tropical Diseases. Publicado em: 2008
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10. Partial biochemistry characterization and obtention of low molecular weight acid phosphatase from osteoblasts cultures / Perfil da proteína tirosina fosfatase de baixo peso molecular em células osteoblásticas
Events as phosphorilation and desphosphorilation are experienced in cell growth and differentiation processes. Tyrosine phosphatases proteins are involved in these processes. These enzymes are found in animals, plants and occur in multiple forms, differing in relative molecular weight, substrate specificity and sensitivity to inhibitors. The enzymes that hav
Publicado em: 2008
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11. BIOCHEMICAL AND PHYSIOLOGICAL EVALUATION OF POTATO CLONES IN RELATION TO ALUMINUM / AVALIAÇÃO BIOQUÍMICA-FISIOLÓGICA DE CLONES DE BATATA EM RELAÇÃO AO ALUMÍNIO
Aluminum (Al) is the most abundant metal in the earths crust, affecting thegrowth and development of plants. The objective of this work was to investigate and compare biochemical and physiological responses of potato clones, Macaca, SMIC148-A, Dakota Rose and Solanum microdontum, exposed to 0, 50, 100, 150 and 200 mg Al L-1 in nutrient solution (pH 4.0). Aft
Publicado em: 2008
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12. Influência da temperatura e de aditivos na matriz fosfolipídica usada para incorporação de fosfatases alcalinas pela técnica de Langmuir-Blodgett / Influence of the temperature and adtives in phospholipidic matrix utilized to Alkaline Phosphatases incorporation by Langmuir-Blodgett tecnique
ABSTRACT Alkaline phosphatases (AP) are unspecific enzymes that hydrolyze phosphate esthers. In this Dissertation we have studied the adsorption of two forms of AP in phospholipid Langmuir monolayers and Langmuir-Blodgett films, considered as biomembrane models, at different temperatures. Further, the effect of the presence of a disaccharide, trehalose, as w
Publicado em: 2007