Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 37 for “"ODC"”.
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The relationship of Permian San Andres facies to the distribution of porosity and permeability in the ODC field, Gaines County, Texas.
The ODC field, operated by Fina Oil and Chemical Company of Texas, is located in Gaines County, Texas on the northwestern shelf of the Midland basin. Consisting of 53 wells, the ODC field produces from 800 net acres involved in a water-flood injection program initiated in 1969. The primary …
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Apparent induction, kinetic and physical properties of the multiple species of ornithine decarboxylase, forms A and B, in the kidney and liver of hormone-treated rat
… treated rats as two ionic forms, designated ODC A and B in order of elution by DEAE-Sepharose chromatography. These studies were designed to better characterize the multiple forms of ODC and to investigate the functions and possible origins of ODC A and B in growth hormone, prolactin and/or …
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ΜΕΛΕΤΗ ΤΗΣ ΒΙΟΣΥΝΘΕΣΗΣ ΤΩΝ ΠΟΛΥΑΜΙΝΩΝ ΣΤΑ ΒΛΑΣΤΗΜΕΝΑ ΣΠΕΡΜΑΤΑ ΚΡΙΘΑΡΙΟΥ
… DECARBOXYLASE (ADC), L-ORNITHINE DECARBOXYLASE (ODC AND ANTIZYME (AZ) IN GERMINATED BARLEY SEEDS ARE CONSIDERABLY AFFECTED BY THEPRESENCE OF PLANT HORMONES (GIBBERELIC ACID, CYTOKININS) IN THE GROWTH MEDIUM,ODC FROM CHROMATIN OF GERMINATED BARLEY SEEDS HAS BEEN PURIFIED TO HOMOGENEITY. THE …
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Engineering and characterization of single chain antibody fragments (scFvs) specific to key enzymes in polyamine biosynthesis and manipulation of polyamine pathway by constitutive expression of recombinant ODC and SDE enzymes in transgenic tobacco
… engineering and antibody technology approaches. ODC a key enzyme in the polyamine biosynthesis, was amplified from a human prostate cDNA library and subcloned into plant expression vector for transient expression in the apoplast, cytosol and endoplasmatic reticulum. ODC was accumulated to higher …
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Characterization of the interaction of putrescine and the adenosine-3' ,5'-cyclic monophosphate-cAMP receptor protein complex in the regulation of the speC gene encoding ornithine decarboxylase in Escherichia coli
Ornithine decarboxylase (ODC) catalyzes the decarboxylation of ornithine to produce the diamine, putrescine, in the bacterium Escherichia coli. The speC gene encoding ODC has been shown to be subject to transcriptional repression by either putrescine or the cAMP- cAMP receptor protein (CRP) …
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Estrogenic and Antiestrogenic Regulation of Cell Proliferation and Tissue Growth
… the regulation of ornithine decarboxylase (ODC) activity and polyamine concentrations by E2 and antiestrogens (AE) as an aid to understanding the dissimilar effects of E2 and AE on uterine growth. Both E2 and AE stimulated ODC activity. AE were antagonistic to E2 in that pretreatment with …
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The development of a molecular chaperone-based system to improve the heterologous production of Plasmodium falciparum AdoMetDC protein in E. coli.
… from Plasmodium falciparum (PfAdoMetDC/ODC) has been described as an ideal antimalarial drug target. However, the production of this large bifunctional protein to facilitate its biochemical characterization is hampered by the poor yields of recombinant protein. It has previously been …
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Funktionelle Charakterisierung des Komplexes aus Ornithin-Decarboxylase, Antizym und Antizym-Inhibitor sowie Identifikation einer Antizym-Inhibitor-Spleißvariante durch Bindung an FK506
… Fähigkeit bestimmt, Ornithin- Decarboxylase (ODC, EC 4.1.1.17) aus dem inhibitorischen Komplex mit Antizym freizusetzen. Die freigesetzte ODC-Aktivität gibt somit Auskunft über die Antizym-Inhibitor- Aktivität. Bei den Antizymen handelt es sich um eine Proteinfamilie, die aus vier Mitgliedern …
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Communicating Data Quality in On-Demand Curation
On-demand curation (ODC) tools like Paygo, KATARA, and Mimir allow users to defer expensive curation effort until it is necessary. In contrast to classical databases that do not even permit potentially erroneous data to be queried, ODC systems instead answer with guesses or approximations. The …
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An Examination of Methodological Rigor and Its Effects on Organizational Development and Change Outcomes
Organizational development and change (ODC) is a broad field because change occurs in all organizations, occurs at multiple organizational levels, consists of numerous interventions, and can impact multiple outcomes. Many ODC efforts attempt to examine the effectiveness of their initiatives, yet …
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Characterization of the Diverse Substrate Specificities and Biological Roles of Polyamine Biosynthetic Enzymes in Microorganisms
… include eukaryotic ornithine decarboxylases (ODC), and bacterial and plant enzymes with activity on L-arginine and meso-diaminopimelate. These enzymes catalyze essential steps in polyamine and lysine biosynthesis. Phylogenetic analysis suggests that diverse bacterial species also contain …
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The Role of Polyamines in Osmotic Stress Tolerance in Gulf Killifish Fundulus Grandis
… of arginase (Arg), ornithine decarboxylase (Odc), and polyamine oxidase (Pao). Although little is known of their functions in fish, polyamines have been implicated in diverse physiological processes, including RNA transcription, cell growth, cell proliferation, and cell apoptosis. The main …
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Zellschdigungen und Mechanismen des Zelltodes in Oligodendrozyten nach oxidativem Stress
… Erkrankungen beteiligt. Oligodendrozyten (ODC) sind die myelin-bildenden Zellen des ZNS und reagieren auf oxidativen Stress besonders empfindlich. Vor kurzem konnte gezeigt werden, dass neben der Bcl-2-Familie vor allem die Mitochondrien eine wichtige Rolle in der Koordinierung des …
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Regulation of the speC gene encoding ornithine decarboxylase in Escherichia coli by putrescine, spermidine and cAMP
… encodes biosynthetic ornithine decarboxylase (ODC), an enzyme that catalyzes the decarboxylation of ornithine to produce putrescine. The two polyamines, putrescine and spermidine, and the cyclic AMP (CAMP) - cAMP receptor protein (CRP) are known to inhibit the expression of ODC via undefined …
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Transgenic manipulation of polyamine metabolism in poplar
… transformed poplar cells overexpressing a mouse odc cDNA under the control of 2X 35S CaMV promoter. The transgenic cells (line 2E) showed elevated levels of mouse ornithine decarboxylase enzyme activity, several fold higher amounts of putrescine, a small increase in spermidine, and a small …
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The Role of Mga in the Survival of Pluripotent Cells During Peri-implantation Development
… marker. Expression of Ornithine Decarboxylase (ODC), the rate-limiting enzyme in the synthesis of cellular polyamines, was identified as a possible cause of embryonic lethality based on a similar mutant phenotype as well as the presence of E-box sequences in genetic regulation loci. ODC is …
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Adapt, Survive or Die - Metabolic Imbalances and the Enteric Nervous System
… known to be altered in the obese/T2D-condition (ODC), we used isolated enteric neurons. We noted that palmitic acid (PA), a lipid known to be increased in ODC caused a significant loss of enteric neurons, through mechanisms involving deranged energy metabolism and the purinergic P2Y13 receptor. …
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Antizyme Inhibitor 2 : A Novel Regulator of Cellular Polyamine Homeostasis
… and degradation of ornithine decarboxylase (ODC), the rate-limiting enzyme in polyamine biosynthesis. AZs themselves are negatively regulated by antizyme inhibitor (AZIN). AZIN functions as a positive regulator of cellular polyamine homeostasis, which by binding to AZs reactivates ODC and …
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Investigation on Applying Modular Ontology to Statistical Language Model for Information Retrieval
… and ontology-based document classification (ODC). Research experiments have required development of an independent search tool that can combine the OQE and ODC in a traditional SLM-based information retrieval (IR) process using a Web document collection. This research considers the ongoing …
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EFFECT OF NICOTINE ON LUNG S-ADENOSYLMETHIONINE AND PNEUMOCYSTIS PNEUMONIA DEVELOPMENT
… biosynthetic enzyme ornithine decarboxylase (ODC) hinders the effect of nicotine on lung AdoMet levels. Further support is provided by metabolite analyses showing nicotine to cause a strong diversion of AdoMet toward polyamine synthesis and away from methylation reactions; these shifts are …
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