Minor Loop
Mostrando 1-12 de 116 artigos, teses e dissertações.
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1. A novel subcutaneous T-shaped bridge device for loop colostomies
PURPOSE: To describe a novel securing device for loop colostomies, developed in our institution and report our 10-year experience. METHODS: The T-shaped support device was used in all patients who required loop colostomy and who were at an increased risk of stoma withdrawal. The device was removed on the fifth postoperative day in all patients. An analysi
Acta Cir. Bras.. Publicado em: 2016
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2. Relationship between viscosity and conductivity for tokamak plasmas
The relation between parallel viscosity and the parallel conductivity for tokamak plasma has been derived by combining Ideal MHD equilibrium equations with the concept of universal profiles. It is obtained that the parallel viscosity Π║ and parallel conductivity σ║ in a tokamak are related by Π║σ║-1 = γ (U-U0)I/R, where U is the loop voltage, U0
Brazilian Journal of Physics. Publicado em: 2009-03
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3. Padronização da expressão heterologa e de modelo de ensaio de atividade para a proteina quinase humana S6K / Standardization of the heterologous expression and of a model assay of activity for the human protein kinase S6K
The 70kDa ribosomal S6 protein kinase 1 (S6K1) is a phosphoprotein involved in the regulation of genes related to translational control in mammals. S6K1 shows distinct nuclear (a1) and cytoplasmic (a2) forms. Phosphorylation of the S6K1 best characterized target, the protein of the small ribosomal subunit (RPS6), has been generally associated to the selectiv
Publicado em: 2009
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4. Um modelo diferencial para histerese magnética: representação algébrica recursiva
Os modelos de Jiles e Preisach são os modelos macroscópicos de histerese magnética mais utilizados atualmente. Quando incorporados em programas de computador para auxílio a projeto e análise (CAD), estes modelos requerem métodos numéricos que impõem uma certa carga computacional no cálculo da histerese. Muitas aplicações de análise são sensívei
Sba: Controle & Automação Sociedade Brasileira de Automatica. Publicado em: 2003-03
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5. The effects of a unique D-loop structure of a minor tRNA(UUALeu) from Streptomyces on its structural stability and amino acid accepting activity.
Streptomyces bldA gene, which encodes a tRNA corresponding to a very minor leucine codon, UUA, regulates pleiotropic gene expression which is involved in sporulation and secondary metabolism. The unique structural feature of this tRNA is the lack of GG sequence in dihydrouridine loop (D-loop) that generally is conserved in tRNAs involved in cytoplasmic prote
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6. Myc/Max and other helix-loop-helix/leucine zipper proteins bend DNA toward the minor groove.
A distinct family of DNA-binding proteins is characterized by the presence of adjacent "basic," helix-loop-helix, and leucine zipper domains. Members of this family include the Myc oncoproteins, their binding partner Max, and the mammalian transcription factors USF, TFE3, and TFEB. Consistent with their homologous domains, these proteins bind to DNA containi
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7. Placement of the alpha-sarcin loop within the 50S subunit: evidence derived using a photolabile oligodeoxynucleotide probe.
We report the synthesis of a radioactive, photolabile oligodeoxyribonucleotide probe and its exploitation in identifying 50S ribosomal subunit components neighboring the alpha-sarcin loop. The probe is complementary to 23S rRNA nt 2653-2674. Photolysis of the complex formed between the probe and 50S subunits leads to site-specific probe photoincorporation in
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8. NMR structure of a ribosomal RNA hairpin containing a conserved CUCAA pentaloop
The structure of a 23 nt RNA sequence, rGGACCCGGGCUCAACCUGGGUCC, was elucidated using homonuclear NMR, distance geometry and restrained molecular dynamics. This RNA is analogous to residues 612–628 of the Escherichia coli 16S rRNA. The structure of the RNA reveals the presence of a pentaloop closed by a duplex stem in typical A-form conformation. The loop
Oxford University Press.
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9. The nature of preferred hairpin structures in 16S-like rRNA variable regions.
Variable length hairpins in 16S-like rRNA show a predominance for tetra-loops, its degree correlates with the protein content of the ribosome. The number of base-pairs adjacent to the loop (the tip size) and the nearest neighbor composition contribute to the stability of hairpin structures. The average tip size in length variable hairpins correlates with the
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10. Minor transcription initiation events indicate that both human mitochondrial promoters function bidirectionally.
Human mitochondrial DNA is transcribed from two distinct, strand-specific promoters located in the displacement loop region of the genome. The transcriptional control sequences identified by deletion mapping and site-directed mutagenesis studies span short regions surrounding the initiation sites and bear no obvious sequence homology to any nuclear or procar
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11. Sequence and Structure of Human Rhinoviruses Reveal the Basis of Receptor Discrimination
The sequences of the capsid protein VP1 of all minor receptor group human rhinoviruses were determined. A phylogenetic analysis revealed that minor group HRVs were not more related to each other than to the nine major group HRVs whose sequences are known. Examination of the surface exposed amino acid residues of HRV1A and HRV2, whose X-ray structures are ava
American Society for Microbiology.
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12. The Human Immunodeficiency Virus Type 1 TAR RNA Upper Stem-Loop Plays Distinct Roles in Reverse Transcription and RNA Packaging†
The human immunodeficiency virus type 1 (HIV-1) RNA genome is flanked by a repeated sequence (R) that is required for HIV-1 replication. The first 57 nucleotides of R form a stable stem-loop structure called the transactivation response element (TAR) that can interact with the virally encoded transcription activator protein, Tat, to promote high levels of ge
American Society for Microbiology.