Zero Sequence And Positive And Negative Sequences
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Uma nova abordagem à filtragem de harmônicos através de dispositivos eletromagnéticos
A qualidade da energia elétrica se apresenta como uma área de grande interesse para os consumidores e concessionários de energia. Buscando meios para regulamentar o assunto, reconhece-se, na atualidade, a existência de recomendações, normas e critérios nacionais e internacionais voltados para a orientação dos valores limites ou de referência para o
Publicado em: 2006
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2. Positive and Negative Regulatory Elements Control Expression of the Yeast Retrotransposon Ty3
We report the results of an analysis of Ty3 transcription and identification of Ty3 regions that mediate pheromone and mating-type regulation to coordinate its expression with the yeast life cycle. A set of strains was constructed which was isogenic except for the number of Ty3 elements, which varied from zero to three. Analysis of Ty3 expression in these st
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3. Single-molecule study of RuvAB-mediated Holliday-junction migration
Branch migration of Holliday junctions is an important step of genetic recombination and DNA repair. In Escherichia coli, this process is driven by the RuvAB complex acting as a molecular motor. Using magnetic tweezers, we studied the RuvAB-directed migration of individual Holliday junctions formed between two ≈6-kb DNA molecules of identical sequence, and
National Academy of Sciences.
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4. rpoB Sequence Analysis of Cultured Tropheryma whippelii
Until recently no isolate of Tropheryma whippelii was available, and therefore genetic studies were limited to those based on PCR amplification of conserved genes. In this study we determined the nucleotide sequence of rpoB (encoding the β-subunit of RNA polymerase) from a cultured strain of T. whippelii using degenerate consensus PCR and genome walking. Th
American Society for Microbiology.
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5. Biochemical Identification and Biophysical Characterization of a Channel-Forming Protein from Rhodococcus erythropolis
Organic solvent extracts of whole cells of the gram-positive bacterium Rhodococcus erythropolis contain a channel-forming protein. It was identified by lipid bilayer experiments and purified to homogeneity by preparative sodium dodecyl sulfate (SDS)-polyacrylamide gel electrophoresis (PAGE). The pure protein had a rather low molecular mass of about 8.4 kDa,
American Society for Microbiology.