Intermolecular Alignment
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Kinetics and molecular dynamics of the dispersion process in two-dimensional systems, flow injection (FI): construction and validation of an experimental apparatus. / Cinética e dinâmica molecular do processo de dispersão bidimensional em sistemas de injeção em fluxo (FI):construção e validação de um aparato experimental.
Este trabalho é constituído de três etapas, a saber: planejamento e construção de um aparato experimental para medidas de fluorescência total (LIF) e depolarização fluorescente (PLF) em sistema de injeção em fluxo (FI); testes operacionais visando otimizar parâmetros experimentais; avaliação fotoquímica/fotofísica da cinética e dinâmica mole
Publicado em: 2002
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2. Intermolecular Alignment Dependence of Ethylene Glycol Flow on the Chemical Nature of the Solid Surface (Borosilicate and SnO2)
Este trabalho estuda o fluxo de etileno glicol (MEG) sobre duas superfícies sólidas com constituições químicas diferentes: borossilicato e dióxido de estanho (SnO2). O alinhamento intermolecular, determinado como polarização e anisotropia, mostrou dependência da natureza química do sólido. A razão entre as tensões interfaciais dinâmicas foi 1.0
Journal of the Brazilian Chemical Society. Publicado em: 2001-12
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3. The STRUCTURAL MAINTENANCE OF CHROMOSOMES 5/6 Complex Promotes Sister Chromatid Alignment and Homologous Recombination after DNA Damage in Arabidopsis thaliana[C][W]
Sister chromatids are often arranged as incompletely aligned entities in interphase nuclei of Arabidopsis thaliana. The STRUCTURAL MAINTENANCE OF CHROMOSOMES (SMC) 5/6 complex, together with cohesin, is involved in double-strand break (DSB) repair by sister chromatid recombination in yeasts and mammals. Here, we analyzed the function of genes in Arabidopsis.
American Society of Plant Biologists.
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4. Progression of a loop–loop complex to a four-way junction is crucial for the activity of a regulatory antisense RNA
The antisense RNA, CopA, regulates the replication frequency of plasmid R1 through inhibition of RepA translation by rapid and specific binding to its target RNA (CopT). The stable CopA–CopT complex is characterized by a four-way junction structure and a side-by-side alignment of two long intramolecular helices. The significance of this structure for bindi
Oxford University Press.
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5. The 5'-terminal sequence of U1 RNA complementary to the consensus 5' splice site of hnRNA is single-stranded in intact U1 snRNP particles.
The 5'-terminal region of U1 snRNA is highly complementary to the consensus exon-intron regions of hnRNA and it has been suggested that U1 snRNP might play a role in the splicing of the pre-mRNA by intermolecular base-pairing between these regions. Here the secondary structure of the 5' terminus of U1 RNA in the isolated native U1 snRNP particle has been inv
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6. Molecular basis of DNA sequence recognition by the catabolite gene activator protein: detailed inferences from three mutations that alter DNA sequence specificity.
Previously, we reported that substitution of Glu-181 of the catabolite gene activator protein (CAP) by lysine, leucine, or valine results in a protein that has specificity for A X T base pairs at positions 7 and 16 of the DNA recognition site, rather than G X C base pairs as is the case with the wild-type CAP. In this paper, we deduce from these genetic data
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7. Homologous, homeologous, and illegitimate repair of double-strand breaks during transformation of a wild-type strain and a rad52 mutant strain of Saccharomyces cerevisiae.
Different modes of in vivo repair of double-strand breaks (DSBs) have been described for various organisms: the recombinational DSB repair (DSBR) mode, the single-strand annealing (SSA) mode, and end-to-end joining. To investigate these modes of DSB repair in Saccharomyces cerevisiae, we have examined the fate of in vitro linearized replicative plasmids duri
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8. Ordering of cyanogen bromide peptides of type III collagen based on their homology to type I collagen: preservation of sites for crosslink formation during evolution.
The order of the cyanogen-bromide-derived peptides from alpha 1 (III) chains of pepsin-solubilized calf skin collagen was found to be 3A-3B-3C-7-6-1,8,2-4-5-9A-9B. The amino-acid sequences of the NH2-terminal region of all peptides were determined by Edman's automated degradation procedure. The alignment of the peptides along the peptide chain was establishe
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9. The C Terminus of Peripherin/rds Participates in Rod Outer Segment Targeting and Alignment of Disk Incisures
Protein targeting is essential for domain specialization in polarized cells. In photoreceptors, three distinct membrane domains exist in the outer segment: plasma membrane, disk lamella, and disk rim. Peripherin/retinal degeneration slow (rds) and rom-1 are photoreceptor-specific members of the transmembrane 4 superfamily of transmembrane proteins, which par
The American Society for Cell Biology.
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10. Infinite pleated β-sheet formed by the β-hairpin Boc-β-Phe-β-Phe-d-Pro-Gly-β-Phe-β-Phe-OMe
A β-hairpin conformation and extended β-pleated sheet assembly have been characterized by single crystal x-ray diffraction for the synthetic peptide t-butoxycarbonyl—β-Phe-β-Phe-d-Pro-Gly-β-Phe-β-Phe-methyl ester [β-Phe: (S)-β3 homophenylalanine]. The centrally located d-Pro-Gly segment nucleates a chain reversal in a type II′ β-turn conformatio
National Academy of Sciences.
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11. Bulged residues promote the progression of a loop–loop interaction to a stable and inhibitory antisense–target RNA complex
In several groups of bacterial plasmids, antisense RNAs regulate copy number through inhibition of replication initiator protein synthesis. These RNAs are characterized by a long hairpin structure interrupted by several unpaired residues or bulged loops. In plasmid R1, the inhibitory complex between the antisense RNA (CopA) and its target mRNA (CopT) is
Oxford University Press.
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12. Comparison of DNA binding and integration half-site selection by avian myeloblastosis virus integrase.
Insertion of the linear retrovirus DNA genome into the host DNA by the virus-encoded integrase (IN) is essential for efficient replication. We devised an efficient virus-like DNA plasmid integration assay which mimics the standard oligonucleotide assay for integration. It permitted us to study, by electron microscopy and sequence analysis, insertion of a sin