James Bond
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Improving shear bond strength of metallic brackets after whitening
RESUMO Objetivo: Avaliar um protocolo para colagem de braquetes metálicos após clareamento com peróxido de hidrogênio (PH). Método: Sessenta pré-molares superiores extraídos foram aleatoriamente divididos em um Grupo Controle (sem clareamento) e dois grupos que receberam clareamento, antes da colagem, com solução de peróxido de hidrogênio a 35%.
Dental Press J. Orthod.. Publicado em: 2020-09
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2. Os títulos que fizeram a minha cabeça
GVLaw. Publicado em: 14/06/2010
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3. A comunicação presencial de sem-tetos na cidade de São Paulo: a produção e distribuição da Revista Ocas
This research investigates the live communication of homeless people in São Paulo City in places with are meeting points such as cultural centers, theaters, movie theaters, bookstores and universities. The study is based on the experiences of those who take part in the production and sale of the Ocas Magazine, a brazilian example of a street paper, a worldw
Publicado em: 2007
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4. Systematic variation of metal—metal bond order in metalloporphyrin dimers
A general method for synthesizing a novel class of metalloporphyrin dimers containing unbridged metal—metal bonds is presented. By choosing the appropriate metal, the bond order in these dimers can be varied systematically. The synthesis and characterization of osmium(II) and molybdenum(II) porphyrin dimers containing the respective metal—metal double an
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5. Rotational barrier of a molybdenum-molybdenum quadruple bond
The synthesis and characterization of molybdenum(II) porphyrin dimers containing unbridged metal-metal quadruple bonds are presented. Variable temperature 300 MHz 1H NMR studies of meso-substituted derivatives provide novel solution evidence for both the existence of quadruple bonds and for a barrier to rotation about the metal-metal bonds in these complexes
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6. Disulfide bond formation involves a quinhydrone-type charge–transfer complex
The chemistry of disulfide exchange in biological systems is well studied. However, the detailed mechanism of how oxidizing equivalents are derived to form disulfide bonds in proteins is not clear. In prokaryotic organisms, it is known that DsbB delivers oxidizing equivalents through DsbA to secreted proteins. DsbB becomes reoxidized by reducing quinones tha
National Academy of Sciences.
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7. A Recombinant Human Immunodeficiency Virus Type 1 Envelope Glycoprotein Complex Stabilized by an Intermolecular Disulfide Bond between the gp120 and gp41 Subunits Is an Antigenic Mimic of the Trimeric Virion-Associated Structure
The few antibodies that can potently neutralize human immunodeficiency virus type 1 (HIV-1) recognize the limited number of envelope glycoprotein epitopes exposed on infectious virions. These native envelope glycoprotein complexes comprise three gp120 subunits noncovalently and weakly associated with three gp41 moieties. The individual subunits induce neutra
American Society for Microbiology.
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8. Interactions between Cyclic Nucleotide Phosphodiesterase 11 Catalytic Site and Substrates or Tadalafil and Role of a Critical Gln-869 Hydrogen Bond
Poor understanding of the topography of cyclic nucleotide (CN) phosphodiesterase (PDE) catalytic sites compromises development of potent, selective inhibitors for therapeutic use. In the X-ray crystal structures of the catalytic domains of some PDEs, an invariant glutamine hydrogen bonds with groups at C6 and N1 or N7 on catalytic products or analogous posit
The American Society for Pharmacology and Experimental Therapeutics.
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9. Anion recognition as a method for templating pseudorotaxane formation
Two thread-shaped cations, pyridinium nicotinamide and imidazolium, as their chloride and hexafluorophosphate salts, were studied with regards to complexation with hydrogen-bond-donating acyclic and macrocyclic ligands. In the latter case, the cations form pseudorotaxanes templated by the chloride anion but not hexafluorophosphate. This formation is a functi
National Academy of Sciences.
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10. Utilization of a depsipeptide substrate for trapping acyl—enzyme intermediates of penicillin-sensitive D-alanine carboxypeptidases
The penicillin-sensitive D-alanine carboxypeptidases of Bacillus subtilis, Escherichia coli, and Staphylococcus aureus catalyzed the hydrolysis of the D-lactic acid residue from the depsipeptide diacetyl-L-lysyl-D-alanyl-D-lactic acid. The ester substrate was hydrolyzed faster than the peptide analogue, diacetyl-L-lysyl-D-alanyl-D-alanine, by the B. subtilis
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11. Detailed insights from microarray and crystallographic studies into carbohydrate recognition by microneme protein 1 (MIC1) of Toxoplasma gondii
The intracellular protozoan Toxoplasma gondii is among the most widespread parasites. The broad host cell range of the parasite can be explained by carbohydrate microarray screening analyses that have demonstrated the ability of the T. gondii adhesive protein, TgMIC1, to bind to a wide spectrum of sialyl oligosaccharide ligands. Here, we investigate by furth
Wiley Subscription Services.
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12. Structural insights into the first incision reaction during nucleotide excision repair
Nucleotide excision repair is a highly conserved DNA repair mechanism present in all kingdoms of life. The incision reaction is a critical step for damage removal and is accomplished by the UvrC protein in eubacteria. No structural information is so far available for the 3′ incision reaction. Here we report the crystal structure of the N-terminal catalytic