Transport Of Coordinates
Mostrando 13-24 de 32 artigos, teses e dissertações.
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13. Avaliação numerica de esquemas para equação eliptica de transporte conectivo-difuso
This work presents a study about five finite difference schemes applied to the numerical solution of convective diffusive transport equation of heat, momentum or species mass. The case of parallel flow is employed where the analysed property is expressed in two-dimensional coordinates. The schemes are the second order ones central differencing, Allen and Sou
Publicado em: 1994
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14. Adenovirus type 2 mRNA in transformed cells: map positions and difference in transport time.
Adenovirus type 2 rat transformed cells produced two polyadenylic acid-terminated mRNA's with approximate coordinates 1.5-4.4 and 4.4-11.0 on the physical map of the adenovirus type 2 genome. These mRNA's were also formed early during lytic infection in addition to one or more smaller mRNA's from the 4.4-11.0 region. In transformed cells, the 1.5-4.4 mRNA ap
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15. Repression of 4-hydroxybenzoate transport and degradation by benzoate: a new layer of regulatory control in the Pseudomonas putida beta-ketoadipate pathway.
Pseudomonas putida PRS2000 degrades the aromatic acids benzoate and 4-hydroxybenzoate via two parallel sequences of reactions that converge at beta-ketoadipate, a derivative of which is cleaved to form tricarboxylic acid cycle intermediates. Structural genes (pca genes) required for the complete degradation of 4-hydroxybenzoate via the protocatechuate branch
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16. Transcriptional Activation of Bordetella Alcaligin Siderophore Genes Requires the AlcR Regulator with Alcaligin as Inducer
Genetic and biochemical studies have established that Fur and iron mediate repression of Bordetella alcaligin siderophore system (alc) genes under iron-replete nutritional growth conditions. In this study, transcriptional analyses using Bordetella chromosomal alc-lacZ operon fusions determined that maximal alc gene transcriptional activity under iron starvat
American Society for Microbiology.
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17. Lipoprotein receptors and a Disabled family cytoplasmic adaptor protein regulate EGL-17/FGF export in C. elegans
Growth factors and morphogens need to be secreted to act on distant cells during development and in response to injury. Here, we report evidence that efficient export of a fibroblast growth factor (FGF), EGL-17, from the Caenorhabditis elegans developing vulva requires the lipoprotein receptor-related proteins Ce-LRP-1 and Ce-LRP-2 and a cytoplasmic adaptor
Cold Spring Harbor Laboratory Press.
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18. UTRdb and UTRsite: a collection of sequences and regulatory motifs of the untranslated regions of eukaryotic mRNAs
The 5′ and 3′ untranslated regions of eukaryotic mRNAs play crucial roles in the post-transcriptional regulation of gene expression through the modulation of nucleo-cytoplasmic mRNA transport, translation efficiency, subcellular localization and message stability. UTRdb is a curated database of 5′ and 3′ untranslated sequences of eukaryotic mRNAs, de
Oxford University Press.
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19. Excited-state dynamics in photosystem II: Insights from the x-ray crystal structure
The heart of oxygenic photosynthesis is photosystem II (PSII), a multisubunit protein complex that uses solar energy to drive the splitting of water and production of molecular oxygen. The effectiveness of the photochemical reaction center of PSII depends on the efficient transfer of excitation energy from the surrounding antenna chlorophylls. A kinetic
The National Academy of Sciences.
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20. A Polypeptide with Similarity to Phycocyanin α-Subunit Phycocyanobilin Lyase Involved in Degradation of Phycobilisomes†‡
To optimize the utilization of photosynthate and avoid damage that can result from the absorption of excess excitation energy, photosynthetic organisms must rapidly modify the synthesis and activities of components of the photosynthetic apparatus in response to environmental cues. During nutrient-limited growth, cyanobacteria degrade their light-harvesting c
American Society for Microbiology.
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21. Dimerization of MLH1 and PMS2 Limits Nuclear Localization of MutLα
DNA mismatch repair maintains genomic stability by detecting and correcting mispaired DNA sequences and by signaling cell death when DNA repair fails. The mechanism by which mismatch repair coordinates DNA damage and repair with cell survival or death is not understood, but it suggests the need for regulation. Since the functions of mismatch repair are initi
American Society for Microbiology.
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22. Erv14p Directs a Transmembrane Secretory Protein into COPII-coated Transport Vesicles
Erv14p is a conserved integral membrane protein that traffics in COPII-coated vesicles and localizes to the early secretory pathway in yeast. Deletion of ERV14 causes a defect in polarized growth because Axl2p, a transmembrane secretory protein, accumulates in the endoplasmic reticulum and is not delivered to its site of function on the cell surface. Herein,
The American Society for Cell Biology.
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23. Structural basis for the oxidation of thiosulfate by a sulfur cycle enzyme
Reduced inorganic sulfur compounds are utilized by many bacteria as electron donors to photosynthetic or respiratory electron transport chains. This metabolism is a key component of the biogeochemical sulfur cycle. The SoxAX protein is a heterodimeric c-type cytochrome involved in thiosulfate oxidation. The crystal structures of SoxAX from the photosynthetic
Oxford University Press.
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24. The Rate-limiting Enzyme in Phosphatidylcholine Synthesis Regulates Proliferation of the Nucleoplasmic ReticulumD⃞
The nucleus contains a network of tubular invaginations of the nuclear envelope (NE), termed the nucleoplasmic reticulum (NR), implicated in transport, gene expression, and calcium homeostasis. Here, we show that proliferation of the NR, measured by the frequency of NE invaginations and tubules, is regulated by CTP:phosphocholine cytidylyltransferase-α (CCT
The American Society for Cell Biology.