Oxidoreductases
Mostrando 1-12 de 133 artigos, teses e dissertações.
-
1. Enzymatic polyphenoloxidase inactivation with temperature and ozone in sugarcane variety RB 92579 to produce lower color sugar
Resumo Algumas variedades de cana têm alta atividade da enzima polifenoloxidase, prejudicando o processo de produção de açúcar de cor menos escura. Polifenoloxidase (PPO) é uma enzima pertencente ao grupo de oxidorredutases e está presente numa quantidade maior ou menor, dependendo da variedade de cana-de-açúcar, das condições climáticas, da ida
Braz. J. Food Technol.. Publicado em: 25/02/2019
-
2. The Dynamic of some Biochemical Indicators at Species of Medicinal Plants from Areas of Suceava County, Romania, Emerged under the Mining Pollution Influence
ABSTRACT It is known the fact that the mining causes huge damages on the environment having negative biologic effects extremely severe on some groups of organisms of the food chain. The pollutants causes major damages at the level of leaves' cuticles, the vegetation reacting through irreversible modifications at the tissue's level and at substances and energ
Braz. arch. biol. technol.. Publicado em: 01/08/2016
-
3. Monitorando atividades enzimáticas com sondas fluorogênicas
Latent fluorogenic probes are essential tools for molecular and chemical biology, providing valuable information about enzymatic activity and occurrence. In this review, a brief outline of fluorophores and latent fluorogenic probes is given. Furthermore, advances and challenges in the development of fluorogenic chemical probes to visualize enzymatic activiti
Quím. Nova. Publicado em: 2014-07
-
4. Aplicações de enzimas na síntese e na modificação de polímeros
Enzymes are biological catalysts that offer great potential for use in the synthesis and modification of polymers, being more specific and greener than chemical catalysts. In this work, enzymes from the classes of hydrolases (lipase, cutinase and protease) and of oxidoreductases (horseradish peroxidase, manganese peroxidase and laccase) were identified as th
Quím. Nova. Publicado em: 2014
-
5. Estudos estruturais e funcionais das enzimas SsuD e SsuE do sistema de transporte do tipo ABC de alcano sulfonatos e da proteína ligadora periplasmática PbP da bactéria Xanthomonas axonopodis pv.citri / Structural and funcional studies of the enzymes SsuD and SsuE from the alkanesulphonate ABC transporter and the periplasmic binding protein (PbP) from Xanthomonas axopodis pv.citri
A captação de sulfato em Escherichia coli é dependente do transportador do tipo ABC (do inglês, ATP Binding Cassete), SbpCysAWD, pertencente a um regulon que envolve 26 genes. Na ausência de sulfato, a bactéria induz a expressão de dois outros transportadores ABC, o de proteínas do sistema de transporte de alcanosulfonatos (SsuABCDE) e de sulfonatos
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/01/2011
-
6. Caracterização bioquímica e cinética de lipoxigenases de plantas de soja submetidas à aplicação de ácidos graxos poliinsaturados.
O objetivo deste trabalho foi avaliar a capacidade da planta de soja em responder à aplicação de ácidos graxos, substratos das lipoxigenases, pela "via das lipoxigenases" por meio da caracterização bioquímica e cinética do "pool" das lipoxigenases foliares. Dois genótipos de soja foram usados: um normal (variedade IAC-100) e outro desprovido das tr�
Pesquisa Agropecuária Brasileira. Publicado em: 2011
-
7. Use of response surface methodology to optimization of extraction of enzymes from pineapple pulp.
The enzymatic reactions are very important for food. They are responsíble for the formation of highly desirable cornpound, but can cause disorders and undesirable consequences. The physiological behaviour of vegetables and fruits is already known, so that most of its deterioration changes in flavour, colour and nutritional value are caused by enzymes of the
Pineapple News. Publicado em: 2011
-
8. Structural studies of the proteins Q4DV70 from Trypanosoma cruzi and mesothelin from Homo sapiens / Estudos estruturais das proteinas Q4DV70 de Trypanosoma cruzi e mesotelina de Homo sapiens
In this work we carried out studies with two proteins, Q4DV70 from Trypanosoma cruzi and mesothelin from Homo sapiens. The aim was to help the understanding of the function of these proteins which possibly are important to Chagas disease and cancer, respectively. Q4DV70 protein was annotated in T. cruzi genome as a conserved hypothetical protein. In our stud
Publicado em: 2009
-
9. Estudos estruturais e funcionais das oxidoredutases de pontes dissulfeto da familia DsbA de Xylella fastidiosa / Structural and functional studies of the disulfide oxidorecdutases DsbA from Xylella fastidiosa
As oxidoredutases de pontes dissulfeto da família DsbA são responsáveis pela catálise da formação de pontes dissulfeto em proteínas secretadas para o periplasma, participando do processo de enovelamento de fatores de virulência de diversos organismos. É a proteína com maior potencial de oxidação atualmente caracterizada e tal propriedade é assoc
Publicado em: 2008
-
10. Caracterização de uma aldo-ceto redutase relacionada a patogenicidade de Xylella fastidiosa / Characterization of a pathogenicity related Aldo-keto reductase from Xylella fastidiosa
The Xylella fastidiosa genome program generated a large number of gene sequences that belong to pathogenicity, virulence and adaptation categories from this important plant pathogen. One of these genes (XF 1729) was described in the genome annotation as being a phenylacetaldehyde dehydrogenase. However, the XF 1729 primary sequence analysis showed similariti
Publicado em: 2007
-
11. Electron microscopic analysis and structural characterization of novel NADP(H)-containing methanol: N,N'-dimethyl-4-nitrosoaniline oxidoreductases from the gram-positive methylotrophic bacteria Amycolatopsis methanolica and Mycobacterium gastri MB19.
The quaternary protein structure of two methanol:N,N'-dimethyl-4-nitrosoaniline (NDMA) oxidoreductases purified from Amycolatopsis methanolica and Mycobacterium gastri MB19 was analyzed by electron microscopy and image processing. The enzymes are decameric proteins (displaying fivefold symmetry) with estimated molecular masses of 490 to 500 kDa based on thei
-
12. Oxidoreductases Involved in Cell Carbon Synthesis of Methanobacterium thermoautotrophicum
Cell-free extracts of Methanobacterium thermoautotrophicum were found to contain high activities of the following oxidoreductases (at 60°C): pyruvate dehydrogenase (coenzyme A acetylating), 275 nmol/min per mg of protein; α-ketoglutarate dehydrogenase (coenzyme A acylating), 100 nmol/min per mg; fumarate reductase, 360 nmol/min per mg; malate dehydrogenase