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Dissertations / Theses on the topic 'UDP-glucose pyrophosphorylase'

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Published: 4 June 2021

Last updated: 11 February 2022

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1

Meng, Meng. "Plant UDP-glucose Pyrophosphorylase : Function and Regulation." Doctoral thesis, Umeå : Department of Plant Physiology, Umeå University, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-1796.

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2

Fitzek, Elisabeth. "Production and characterization of mutants of UDP-glucose pyrophosphorylase." Thesis, Umeå University, Plant Physiology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-26081.

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<p>UDP-glucose pyrophosphorylase (UGPase) is a key component of carbohydrate production in plants, especially with respect to sucrose synthesis/ metabolism, by producing UDP-glucose, a key precursor to sucrose and to many polysaccharides in cell walls. UDP-glucose is also utilized in the synthesis of carbohydrate moiety of glycolipids, glycoproteins and a variety of secondary metabolites, among other functions. The UGPase enzyme may have a rate-limiting function in sugar biosynthesis, and its activity is now known to increase upon variety of abiotic stresses, with possible effects on an overal

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3

Fogarty, Melissa Coon. "Characterization of Hemicellulose Biosynthesis Genes in Avena." BYU ScholarsArchive, 2020. https://scholarsarchive.byu.edu/etd/8978.

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Avena sativa L. (2n = 6x = 42, AACCDD genome composition) or common oat is the cereal grain possessing the highest levels of water-soluble seed (1-3,1-4)-β-D-glucan (β-glucan), a hemicellulose important to human health due to its ability to lower serum LDL cholesterol levels. Understanding the mechanisms of β-glucan accumulation in oat endosperm is, consequently, of great interest. We report a genome-wide association study (GWAS) to identify quantitative trait loci (QTLs) controlling β-glucan production in oat, identifying 58 significantly associated markers. Synteny with the barley (Hordeum v

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4

Johansson, Henrik. "Gene regulation of UDP-glucose synthesis and metabolism in plants." Doctoral thesis, Umeå University, Plant Physiology, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-93.

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<p>Photosynthesis captures light from the sun and converts it into carbohydrates, which are utilised by almost all living organisms. The conversion between the different forms of carbohydrates is the basis to form almost all biological molecules.</p><p>The main intention of this thesis has been to study the role of UDP-glucose in carbohydrate synthesis and metabolism, and in particular the genes that encode UDP-glucose pyrophosphorylase (UGPase) and UDP-glucose dehydrogenase (UGDH) in plants and their regulation. UGPase converts glucose-1-phosphate to UDP-glucose, which can be utilised for suc

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5

Villafraz, Oriana. "UDP-glucose pyrophosphorylase (UGP) : import dans les glycosomes et implication dans la biosynthèse glycosomale et cytosolique des sucres nucléotidiques chez Trypanosoma brucei." Thesis, Bordeaux, 2020. http://www.theses.fr/2020BORD0215.

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Trypanosoma brucei, un protiste responsable de la Trypanosomose Humaine Africaine, également connue sous le nom de la maladie du sommeil, est transmis par la mouche tsé-tsé (Glossina sp.). La découverte d'organites de type peroxysome spécialisés dans la glycolyse, appelés glycosomes, a soulevé un certain nombre de questions sur le rôle de cet organite dans la biologie des trypanosomes. Plusieurs voies métaboliques présentes dans le cytosol d'autres eucaryotes, comme la glycolyse et la biosynthèse des sucres nucléotidiques, sont compartimentées dans les glycosomes. Les raisons et les avantages

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6

Ramoutar, Rakeshnie. "The development of an in situ hybridisation technique to determine the gene expression patterns of UDP-Glucose dehydrogenase, pyrophosphate-dependent phosphofructokinase and UDP-Glucose pyrophosphorylase in sugarcane internodal tissues." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/49795.

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Thesis (MSc)--University of Stellenbosch, 2003.<br>ENGLISH ABSTRACT: The cellular expression of the enzymes implicated in regulating sucrose metabolism and accumulation in sugarcane is poorly understood. The present study was therefore aimed at the development of an in situ hybridisation (ISH) technique to study differential gene expression among the various cell types of the sugarcane culm. This technique in conjunction with northern and western blotting was then used to determine the sites of cellular and tissue specific expression of the cytosolic enzymes, UDP-Glc dehydrogenase, pyrop

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7

Peneff, Caroline. "Etudes structurales et fonctionnelles de deux enzymes clés impliquées dans la biosynthese de l'UDP-N-Acétyl-Glucosamine chez les eucaryotes." Aix-Marseille 1, 2001. http://www.theses.fr/2001AIX11049.

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L'UDP-N-Acétyl-glucosamine (UDP-GlcNAc) est un précurseur clé de composants de la paroi cellulaire bactérienne et fongique, du glycolipide d'ancrage GPI, ainsi que des N- et O-glycannes des glycoprotéines. Pour comprendre les mécanismes d'acétylation et d'uridylation qui conduisent à la synthèse de l'UDP-GIcNAc chez les eucaryotes, la GlcN6P acétyltransférase de S. Cerevisiae (ScGNA1) et les deux isoformes (AGX1 et AGX2) issues de l'épissage alternatif du gène humain de la GlcNAc1P uridyltransférase ont été exprimées dans des souches d'E. Coli, purifiées et cristallisées. Les méthodes cristall

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8

Mu, Hong, and 穆虹. "Screening of genes related to pollen development in a thermo-sensitivemale sterile rice (Oryza sativa L.): cloningand characterization of UDP-glucose pyrophosphorylase." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31243484.

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9

Mu, Hong. "Screening of genes related to pollen development in a thermo-sensitive male sterile rice (Oryza sativa L.) : cloning and characterization of UDP-glucose pyrophosphorylase /." Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk/hkuto/record.jsp?B25059038.

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10

Soares, José Sérgio de Macedo 1979. "Caracterização estrutural e funcional da proteína UDP-glucose pirofosforilase envolvida na biossíntese e acúmulo de sacarose em cana de açúcar = Structural and functional characterization of the protein UDP-glucose pyrophosphorylase involved in the biosynthesis and accumulation of sucrose in sugarcane." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/317059.

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Orientadores: Marcelo Menossi Teixeira, Ricardo Aparicio<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-27T14:13:51Z (GMT). No. of bitstreams: 1 Soares_JoseSergiodeMacedo_D.pdf: 4995080 bytes, checksum: ad3458f447f7044749e0ee6cb95f4315 (MD5) Previous issue date: 2013<br>Resumo: O agronegócio da cana de açúcar movimenta cerca de R$ 40 bilhões por ano no Brasil. A cadeia produtiva da cana de açúcar como atividade na economia é responsável por 1,5% do produto interno bruto (PIB) nacional e um dos principais componentes econô

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11

Heydel, Jean-Marie. "Régulation de l'expression d'UDP-glucuronosyltransférases chez le rat dans différents tissus métabolisant les xénobiotiques : foie, plexus choroi͏̈des et tissus olfactifs." Dijon, 2001. http://www.theses.fr/2001DIJOPE04.

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La reaction de glucoronoconjugaison, catalysee par les udp-glucuronosyltranferases (ugts), est un processus implique dans le metabolisme des xenobiotiques (medicaments, substances toxiques) mais aussi des molecules endognes. L'activite de ces enzymes participe ainsi au controle de la concentration de certains mediateurs de reponses physiologiques comme les hormones et les molecules odorantes. L'objectif de ce travail est l'identification et l'etude de la regulation de l'expression d'ugts chez le rat, par differents facteurs dans des tissus ou leur presence a probablement des consequences fonct

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12

Fassy, Florence. "Étude théorique et expérimentale d'un cycle de substrats ternaire." Compiègne, 1992. http://www.theses.fr/1992COMPD523.

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Un cycle de substrats ternaire est une structure métabolique composée de trois substrats convertis par trois activités enzymatiques. Pour l'étude de ce système, seuls les flux d'interconversion sont pris en compte. Les modifications des concentrations des substrats d'un cycle ternaire, à l'état stationnaire, sont décrites en fonction des valeurs des paramètres du système (somme des concentrations des substrats et vitesses maximales des enzymes). Des phénomènes de bistabilité sont mis en évidence de façon théorique. Un cycle expérimental avec les substrats UTP, UDPglucose et UDP est étudié en p

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13

Manel, Nicolas. "Identification et caractérisation d'un récepteur d'enveloppe au virus de leucémie T humaine (HTLV), le transporteur de glucose GLUT1." Phd thesis, Université Montpellier II - Sciences et Techniques du Languedoc, 2005. http://tel.archives-ouvertes.fr/tel-00202039.

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Le rétrovirus HTLV-1 (Human T-cell Leukemia Virus type 1) est l'agent responsable de la leucémie T de l'adulte (ATL) et de la paraparésie spastique tropicale (TSP/HAM). Le HTLV est présent de manière endémique au Japon, en Afrique centrale, en Océanie, en Amérique du sud et aux Caraïbes. Chez les patients, le HTLV est détecté principalement dans les lymphocytes T CD4+. Le récepteur du HTLV est présent chez tous les vertébrés, et toutes les lignées cellulaires de vertébrés semblent l'exprimer in vitro. L'organisation de la glycoprotéine d'enveloppe (Env) du HTLV est similaire à celle des MLV (M

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14

李雅雯. "Construction and characterization of UDP-glucose pyrophosphorylase and phoshpomannose isomerase/GDP-mannose pyrophosphorylase chimeric enzymes." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/88447774905435005743.

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15

Chen, Wen-Cheng, and 陳文成. "Study the specificity of UDP-Sugar pyrophosphorylase using galactose and glucose analogues." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/42815979583560682180.

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碩士<br>國立臺灣大學<br>化學研究所<br>100<br>Glycans and glycoconjugates are important biomolecules, which participate in various cellular processes, e.g. cancer growth, infiltration, and metastasis. Although many chemical synthetic methods have been developed during last decade, the synthesis of glycoconjugates, especially the stereoselective glycosylation, remains to be problematic. In contrast, enzymatic synthesis using glycosyltransferases is advantageous in terms of not only chemical selectivities but also green chemistry. In this study, we looked into arabidopsis thaliana UDP-sugar pyrophosphorylase

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16

Kuo, Min-Chieh, and 郭敏潔. "Molecular Evolution of Exceptionally Large Genes and Nucleotide-Sugar Pyrophosphorylases in Prokaryotes, and Identification of Potential Inhibitors of UDP-Glucose Pyrophosphorylase." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/12683908575172355249.

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博士<br>國立清華大學<br>分子醫學研究所<br>100<br>This thesis consists of 3 chapters. The first 2 chapters describe the molecular evolution of prokaryotic exceptionally large-sized genes (ELSGs) and nucleotide-sugar pyrophosphorylases/phosphorylases (NDP-sugar PPases/Pases). The third chapter describes a computer-aided drug design for searching bacterial UDP-glucose pyrophosphorylase (UGPase) inhibitors. In chapter 1, we have noted that, in contrast to the average gene size of approximately 1 kb in bacteria, 3 genes > 13 kb were present in Vibrio vulnificus. The finding prompted us to investigate the prevalen

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