Polypeptides
Mostrando 13-24 de 5316 artigos, teses e dissertações.
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13. Alterations in proteins and amino acids of the Nile cyanobacteria Pseudanabaena limnetica and Anabaena wisconsinense in response to industrial wastewater pollution
The effect of industrial wastewater on the Nile cyanobacteria Pseudanabaena limnetica and Anabaena wisconsinense was investigated. The data showed that P. limnetica was more sensitive to pollution than A. wisconsinense. The treatments with different levels of wastewater exerted pronounced reductions in protein and amino acids content. SDS-PAGE analysis revea
Brazilian Archives of Biology and Technology. Publicado em: 2011-08
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14. TLR5-dependent immunogenicity of a recombinant fusion protein containing an immunodominant epitope of malarial circumsporozoite protein and the FliC flagellin of Salmonella Typhimurium
Recently, we described the improved immunogenicity of new malaria vaccine candidates based on the expression of fusion proteins containing immunodominant epitopes of merozoites and Salmonella enterica serovar Typhimurium flagellin (FliC) protein as an innate immune agonist. Here, we tested whether a similar strategy, based on an immunodominant B-cell epitope
Memórias do Instituto Oswaldo Cruz. Publicado em: 2011-08
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15. Identificação de alvos antigênicos na ATP difosfohidrolase solúvel de Schistosoma mansoni e possível aplicação funcional de peptídeos sintéticos
The antigenicity of both soluble S. mansoni ATP diphosphohydrolase and membraneassociated isoforms has been recently described. Cross-immunoreactivity between potato apyrase and IgG antibody from S. mansoni-infected mice or schistosomiasis patients strongly suggested that the epitopes shared between the vegetable and parasite proteins are antigenic. By bioin
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/06/2010
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16. Induction of a gloverin-like antimicrobial polypeptide in the sugarcane borer Diatraea saccharalis challenged by septic injury
Diatraea saccharalis (Fabricius, 1794) (Lepidoptera: Crambidae) is an important pest for Brazilian sugarcane. In the present study, we detected two distinct spots in hemolymph from septic injured larvae (HDs1 and HDs2), which are separated by 2DE gel electrophoresis. Both spots were subjected to in-gel tryptic digestion and MALDI-TOF/TOF analysis, which reve
Brazilian Journal of Medical and Biological Research. Publicado em: 07/05/2010
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17. Anticoagulant activity in salivary gland homogenates of Thyrsopelma guianense (Diptera: Simuliidae), the primary vector of onchocerciasis in the Brazilian Amazon
In this study, anticoagulant activity was detected in salivary gland homogenates (SGHs) of Thyrsopelma guianense (Diptera: Simuliidae). The SGH yielded 1.07 μg ± 0.03 (n = 15) of total soluble protein per pair of glands. In addition, following SDS-PAGE (12.5% gel) and silver nitrate staining, 12 polypeptides with molecular weights ranging from 14-69 kDa we
Memórias do Instituto Oswaldo Cruz. Publicado em: 2010-03
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18. Efeito das toxinas purificadas pktx23c3, pktx28c4, pktx20c4, pntx19c1, pntx25a1, pntx37c2, pntx19c2, pntx3-2 na liberação de Glutamato em Sinaptosomas Cérebro Corticais de Rato.
Studies revealed that the venom of the Brazilian armed spider Phoneutria nigriventer contains potent neurotoxins that caused excitatory symptoms such as salivation, lachrymation, priapism, convulsions, flaccid and spastic paralysis. It was also reported that the main mechanism of action of those neurotoxins are effects on ion channels such as inhibition of t
Publicado em: 2010
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19. Analysis of storage proteins of wild rice Oryza glumaepatula strains and interspecific Oryza sativa x Others Glumaepatula / Análise das proteínas de reserva do arroz silvestre oryza glumaepatula e de linhagens interespecíficas oryza sativa x o. Glumaepatula
The objective of this dissertation was to analyze quantitative and qualitatively the total storage protein content and its fractions albumin, globulin, prolamin and glutelin from the grain of 29 genotypes of the wild rice Oryza glumaepatula and 70 interspecific lines backcross 2 obtained from the cross O. sativa x O. glumaepatula. From these lines, 34 BC2F8
Publicado em: 2010
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20. Molecular and biochemical characterisation of Trypanosoma cruzi phosphofructokinase
The characterisation of the gene encoding Trypanosoma cruzi CL Brener phosphofructokinase (PFK) and the biochemical properties of the expressed enzyme are reported here. In contradiction with previous reports, the PFK genes of CL Brener and YBM strain T. cruzi were found to be similar to their Leishmania mexicana and Trypanosoma brucei homologs in terms of b
Memórias do Instituto Oswaldo Cruz. Publicado em: 2009-08
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21. MOLECULAR CHARACTERIZATION OF BIOPOLIMERS IN SOLUTION BY COMPUTATIONAL SIMULATION / Caracterização molecular de biopolímeros em solução utilizando simulação computacional
Computer simulation methods were used to characterize the structure and molecular properties of natural and synthetic biopolymers in aqueous solution. The polysaccharides chitin and chitosan, and aliphatic polypeptides were studied. The interest on the chitin and chitosan biopolymers is because of their biodegradability, biocompatibility and potential use as
Publicado em: 2009
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22. Peptídeos cíclicos de biomassa vegetal: características, diversidade, biossíntese e atividades biológicas
Natural peptides are outstanding as the most promising macromolecules in the search for new drugs, especially those of cyclic nature. The higher plants revealed a very peculiar composition of their cyclic peptides, which distinguish themselves by a "head-to-tail" cyclization. It is possible to define two groups of cyclic peptides from plant biomass. Those ca
Química Nova. Publicado em: 2009
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23. Physiological, biochemical aspects and comparative proteomic during maturation, germination and seedling conversion of Ocotea catharinensis Mez. (Lauraceae). / Aspectos fisiológicos, bioquímicos e análise proteômica comparativa durante a maturação, germinação e conversão em plantas de embriões de Ocotea catharinensis Mez. (Lauraceae).
The great similarity among the events of zygotic and somatic embryogenesis allows the establishment of parameters for accompaniment of these processes. In the present work it was studied the somatic embryogenesis in Ocotea catharinensis, in the maturation and germination phases, and the zygotic embryogenesis. The biochemical parameters and differential expre
Publicado em: 2009
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24. Sinalização intracelular e expressão de receptores mediados por LDL modificada e peptídeos da apolipoproteínaB-100 em monócitos/macrófagos humanos. / Intracellular signaling and receptor expression mediated by modified LDL and apolipoproteinB-100 peptides in human monocytes/macrophages.
The Low Density Lipoprotein (LDL) may undergo oxidative or enzymatic modifications, producing lipid or proteic compounds that interact with macrophages, contributing to inflammatory response in the atherosclerosis. Into the arterial intima, the macrophages interact with minimally modified LDL (LoxLDL) and with highly oxidized LDL (HoxLDL). Moreover, in the a
Publicado em: 2009