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Dissertations / Theses on the topic 'Enzymes Enzymes Bacteria'

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Published: 4 June 2021

Last updated: 10 February 2022

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1

Kita, Keiko. "STUDIES ON NEW RESTRICTION ENZYMES AND MODIFICATION ENZYMES FROM BACTERIA." Kyoto University, 1989. http://hdl.handle.net/2433/78227.

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2

Vetter, Yves-Alain. "Bacterial foraging with cell-free enzymes /." Thesis, Connect to this title online; UW restricted, 1998. http://hdl.handle.net/1773/11033.

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3

Cramp, Rebecca Ann. "Novel nitrile degrading enzymes in thermophilic bacteria." Thesis, University College London (University of London), 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.300058.

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4

Hayburn, Gaynor. "Characterization of the arsenate reductase enzymes from Staphylococcal bacteria." Thesis, Liverpool John Moores University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299082.

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5

Krishnakumar, Arathi Mandyam. "Structural studies of enzymes involved in propylene and acetone metabolism in Xanthobacter autotrophicus." Diss., Montana State University, 2007. http://etd.lib.montana.edu/etd/2007/krishnakumar/KrishnakumarA0507.pdf.

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6

Nakamichi, Yusuke. "Structural and Functional Studies on Glycosaminoglycan-degrading Enzymes from Bacteria." Kyoto University, 2014. http://hdl.handle.net/2433/189368.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第18475号<br>農博第2075号<br>新制||農||1025(附属図書館)<br>学位論文||H26||N4859(農学部図書室)<br>31353<br>京都大学大学院農学研究科食品生物科学専攻<br>(主査)教授河田照雄, 教授保川清, 准教授橋本渉<br>学位規則第4条第1項該当

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7

LEE, KANG-MIN. "Enzymes en milieux heterogenes." Université Louis Pasteur (Strasbourg) (1971-2008), 1989. http://www.theses.fr/1989STR13051.

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L'emploi des enzymes en synthese organique pose quelque probleme du fait de la faible solubilite des produits organiques dans l'eau. C'est pourquoi l'alcool dehydrogenase a ete cristallisee; les microemulsions offrent des proprietes favorables a l'activite enzymatique

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8

Reid, Alison Jean. "Resistance to beta-lactam antibiotics in gram-negative bacteria." Thesis, University of Edinburgh, 1987. http://hdl.handle.net/1842/19258.

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9

Lobo, Susana André. "Anaerobic bacteria: an investigation of metabolic important enzymes: a novel type of oxygen reductase and enzymes of the tetrapyrrole biosynthesis." Doctoral thesis, Universidade Nova de Lisboa. Instituto de Tecnologia Química e Biológica, 2009. http://hdl.handle.net/10362/4082.

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Desulfovibrio desulfuricans was the first species of a sulphatereducing bacterium to be isolated, in 1895. Since that time, many questions were raised in the scientific community regarding the metabolic and ecological aspects of these bacteria. At present, there is still a myriad of open questions remaining to be answered to enlarge our knowledge of the metabolic pathways operative in these bacteria that have implications in the sulfur cycle, in biocorrosion, namely in sewers and in oil and gas systems, and in bioremediation of several toxic metals. The work presented in this dissertat

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10

Lehmann, Sabine [Verfasser]. "Sulfite dehydrogenases in organotrophic bacteria : enzymes, genes and regulation / Sabine Lehmann." Konstanz : Bibliothek der Universität Konstanz, 2013. http://d-nb.info/1036837327/34.

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11

Hamilton, Katie Abigail. "Interactions between bacteria, enzymes and the sheep scab mite : psoroptes ovis." Thesis, Bangor University, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.417274.

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12

Taylor, Charles R. "Isolation of environmental lignin-degrading bacteria and identification of extracellular enzymes." Thesis, University of Warwick, 2013. http://wrap.warwick.ac.uk/57457/.

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A novel screening method for detecting lignin-degradation activity on agar plates was developed using nitrated lignin. Using this method, ten lignindegrading bacteria have been isolated from environmental sources, including seven mesophilic soil bacteria and three thermotolerant strains from composted wheat straw. All of the isolates have demonstrated activity towards lignin degradation in the assays, the most active strain being a thermotolerant Sphingobacterium strain from the Bacteroidetes family. The ability of each strain to degrade a variety of aromatic carbon sources and size-fractionat

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13

Larsbrink, Johan. "Strategies for the Discovery of Carbohydrate-Active Enzymes from Environmental Bacteria." Doctoral thesis, KTH, Glykovetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-126956.

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The focus of this thesis is a comparative study of approaches in discovery of carbohydrate-active enzymes (CAZymes). CAZymes synthesise, bind to, and degrade all the multitude of carbohydrates found in nature. As such, when aiming for sustainable methods to degrade plant biomass for the generation of biofuels, for which there is a strong drive in society, CAZymes are a natural source of environmentally friendly molecular tools. In nature, microorganisms are the principal degraders of carbohydrates. Not only do they degrade plant matter in forests and aquatic habitats, but also break down the m

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14

Yamano, Naoko. "Studies on the enzymes for N-acetylglucosamine metabolism in marine bacteria." Kyoto University, 2000. http://hdl.handle.net/2433/181079.

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要旨の氏名に「やまのなおみ」と振仮名の誤りあり<br>Kyoto University (京都大学)<br>0048<br>新制・論文博士<br>博士(農学)<br>乙第10418号<br>論農博第2297号<br>新制||農||804(附属図書館)<br>学位論文||H12||N3417(農学部図書室)<br>UT51-2000-F484<br>(主査)教授木村光, 教授熊谷英彦, 教授桒原正章<br>学位規則第4条第2項該当

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15

Fernandes, Vânia Ondina Pedro. "Discovering novel carbohydrate-active enzymes in the cellulosome of anaerobic bacteria." Doctoral thesis, Universidade de Lisboa. Faculdade de Medicina Veterinária, 2015. http://hdl.handle.net/10400.5/9287.

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Tese de Doutoramento em Ciências Veterinárias, especialidade em Ciências Biológicas e Biomédicas<br>Carbohydrate-active enzymes (CAZymes) include a range of enzymes that, in nature, make, break or modify glycosidic bonds. CAZymes act on highly recalcitrant polysaccharides, such as cellulose and hemicellulose, and often exhibit a modular architecture including catalytic domains fused through flexible linker regions to non-catalytic domains such as carbohydrate-binding modules (CBMs). In some anaerobic bacteria these enzymes can associate in high molecular mass multi-enzyme complexes termed

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16

Lelchat, Florian. "Enzymes de dépolymérisation d'exopolysaccharides bactériens marins." Thesis, Brest, 2014. http://www.theses.fr/2014BRES0070/document.

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Les exopolysaccharides (EPS) sont des biopolymères pouvant être synthétisés par les Eucaryotes, lesArchées et les Procaryotes. Au niveau bactérien les EPS peuvent être impliqués dans la constitution du biofilm (phénomène de biofouling) lors de la colonisation de nouveaux milieux. Ces biopolymères ont des propriétés physico-chimiques et biologiques spécifiques et innovantes à haut potentiel biotechnologique (agroalimentaire, santé, cosmétique, ingénierie environnementale ...). A l'opposé, leurs rôles écologiques lors de l'établissement de biofilms de souches potentiellement pathogènes peuvent r

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17

Berger, Eldie. "Analysis of genes and enzymes involved in the degradation of cellulose and proteins by Butyrivibrio fibrisolvens H17c." Doctoral thesis, University of Cape Town, 1990. http://hdl.handle.net/11427/21977.

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Bibliography: pages 147-169.<br>Butyrivibrio fibrisolvens H17c is a gram-negative obligate anaerobic bacterium found in the rumen of most ruminants. The aim of this thesis was to investigate the enzymes produced by B. fibrisolvens H17c involved in the degradation of cellulose, xylan, and protein. A library of chromosomal DNA fragments from B. fibrisolvens H17c was established in the plasmid pEcoR251, an Escherichia coli positive selection vector. The library was screened for genes expressing cellulase, xylanase, and protease activity. Two genes expressing endo-β-1,4-glucanase and cellodextrina

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18

Yang, Min. "Synthesis of 5 thioglucose derivatives in the carbohydrate metabolic pathways in lactic acid bacteria." Thesis, University of Huddersfield, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.274227.

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19

Phehane, Vuyisile Ntosi. "The isolation and characterisation of thermostable hydantoinases from hydantoinase-producing bacteria." Thesis, Rhodes University, 1999. http://hdl.handle.net/10962/d1004058.

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In order to characterise thermostable hydantoin-hydrolysing enzymes from bacteria, locally-isolated thermophilic organisms were screened for the ability to convert hydantoin to N-carbamylglycine at 55°C using the hydantoinase enzyme. Cell disruption of a selected strain, RU-20-15, was conducted by French pressing to release enzyme from within the cell. In all of the experiments conducted, the amounts of product were low. In view of the low yields of products formed by the thermophiles, a previously-isolated Gram negative strain, RU-KM3L was selected from a number of mesophiles by screening for

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20

Sani, A. "Ribulose-1,5-biphosphate carboxylase-oxygenase and carbon dioxide fixation in the Rhodospirillaceae." Thesis, University of Warwick, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.372232.

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21

Gençkal, Hande Tarı Canan. "Studies On Alkaline Protease Production From Bacillus Sp./." [s.l.]: [s.n.], 2004. http://library.iyte.edu.tr/tezler/master/biyoteknoloji/T000505.pdf.

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22

Mansfield, David Anthony. "Control of the weight-average molecular mass of poly(3-hydroxybutyrate) synthesised by bacteria." Thesis, University of Hull, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.318371.

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23

Torres, Marco Tulio Rincon. "Cellulosome organisation of plant cell wall degrading enzymes in Ruminococcus flavefaciens 17." Thesis, University of Aberdeen, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327013.

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24

Han, Bin. "Regulation of the synthesis of extracellular protease and cellulase enzymes in Xanthomonas campestris." Thesis, Open University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316748.

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25

Dadd, Michael Richard. "Chiral biotransformations of cylclic nitrile compounds." Thesis, University of Oxford, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.365818.

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26

Altan, Asena Yenidünya Ali Fazıl. "Isolation And Molecular Characterization of Extracellular Lipase And Pectinase Producing Bacteria From Olive Oil Mills/." [s.l.]: [s.n.], 2004. http://library.iyte.edu.tr/tezler/master/biyoteknoloji/T000497.pdf.

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27

Wang, Ying, and 王英. "Comparative functional analysis of enzymes that metabolize polyphosphate and guanosine polyphosphate in bacteria." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B4473556X.

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28

Mtshali, Phillip Senzo. "Molecular screening of lactic acid bacteria enzymes and their regulation under oenological conditions." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6496.

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Thesis (PhD)--University of Stellenbosch, 2011.<br>ENGLISH ABSTRACT: During winemaking, a number of biochemical changes occur as a result of the metabolic activity of wine lactic acid bacteria (LAB) associated with malolactic fermentation (MLF). The latter process, which occurs mostly after alcoholic fermentation by wine yeasts, involves the conversion of L-malate to L-lactate and CO2, thus resulting to wine acidity reduction, microbiological stabilization and alterations of wine organoleptic quality. Although Oenococcus oeni is predominantly the most preferred species suitable for carry

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29

Cheung, Ka-hong. "Chromate toxicity assessment and detoxification by bacteria from the marine environment /." View the Table of Contents & Abstract, 2006. http://sunzi.lib.hku.hk/hkuto/record/B36249890.

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30

Feio, Maria Jose Faria. "Characterisation and identification of two novel species of sulphate-reducing bacteria from marine environments." Thesis, University of Portsmouth, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327002.

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This study describes the characterisation and identification of two species of sulphate-reducing bacteria isolated from marine environments. The isolate coded Ind 1 was recovered from the heavily corroded hull of an oil storage vessel moored off the Indonesian coast. An isolate, referred to as Al 1, originated from a soured oil reservoir in Alaska. Observations using microscopy (light, scanning electron and atomic force) revealed that cells were Gram-negative, rod-shaped and very motile. Physiological characterisation, analysis of the fatty acid profiles and partial and full 16S rRNA sequencin

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31

Smith, K. "Enzymes of L -malate metabolism : Malate dehydrogenase from porcine heart, mesophilic bacteria and thermophilic bacteria and malate synthase from thermophilic bacteria." Thesis, University of Manchester, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.356707.

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32

Barron, Vincent N. (Vincent Neal). "Comparison of Aspartate Transcarbamoylase and Pyrimidine Salvage in Sporosarcina urea, Sprolactobacillus inulinus, Lactobacillus fermentum, and Micrococcus luteus." Thesis, University of North Texas, 1994. https://digital.library.unt.edu/ark:/67531/metadc278938/.

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The enzyme that catalyzes the committed step in pyrimidine biosynthesis, aspartate transcarbamoylase, has been compared in selected endospore-forming organisms and in morphologically similar control organisms. The ATCases and pyrimidine salvage from Sporosarcina ureae, Sporolactobacillus inulinus, Lactobacillus fermentum, and Micrococcus luteus were compared to those of Bacillus subtilis. While the ATCases from Sporosarcina ureae, Sporolactobacillus inulinus, and L. fermentum were found to exhibit characteristics to that of Bacillus with respect to molecular weight and kinetics, M. luteus ATCa

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33

Mtshali, Phillip Senzo. "Screening and characterisation of wine related enzymes produced by wine associated lactic acid bacteria." Thesis, Link to the online version, 2007. http://hdl.handle.net/10019/446.

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34

McMullan, Shirley. "The production and application of microbial enzymes with lytic action on bacteria in water." Thesis, Queen's University Belfast, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.419502.

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35

Ngwenya, Nonhlanhla. "Enzymatic recovery of rhodium(III) from aqueous solution and industrial effluent using sulphate reducing bacteria: role of a hydrogenase enzyme." Thesis, Rhodes University, 2005. http://hdl.handle.net/10962/d1004015.

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In an attempt to overcome the high maintenance and costs associated with traditional physico-chemical methods, much work is being done on the application of enzymes for the recovery of valuable metals from solutions and industrial effluents. One of the most widely studied enzymatic metal recovery systems uses hydrogenase enzymes, particularly from sulphate reducing bacteria (SRB). While it is known that hydrogenases from SRB mediate the reductive precipitation of metals, the mechanism of enzymatic reduction, however, is not yet fully understood. The main aim of the present study was to investi

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36

Stewart, Kirsty Anne. "Enzymes of the shikimate pathway in human pathogenic bacteria : candidates for structure based drug design." Thesis, University of Glasgow, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.412947.

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37

GOMAA, RAAFAT MAHMOUD MOHAMED 518237, and RAAFAT MAHMOUD MOHAMED GOMAA. "Possibility of treating agricultural byproducts by exogenous enzymes and anearobic bacteria to produce ruminant feeds." Tesis de maestría, Ain Shams University, 2012. http://hdl.handle.net/20.500.11799/68377.

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The objectives of this study were to verify the potential benefits of growing green barley on anaerobic enzyme (ZAD) treated rice straw. In addition, the work intended to investigate the effect of this treatment on digestibility parameters in Ossimi sheep. A complete random design was used to distribute twelve mature male of Ossimi sheep (45.0 +0.5 Kg wt.) on the following treatments: Rice straw with grown barley (RSGB) without either ZAD or orange pulp (control, T1), RSGB plus ZAD (T2), RSGB plus orange pulp (T3) and RSGB + ZAD + orange pulp (T4). The obtained results could be summarized as f

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38

Leighton, Matthew Peter. "An NMR and enzyme study of carbon metabolism in Neisseria meningitidis." Thesis, University of Sheffield, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310773.

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39

Huston, Adrienne Louisa. "Bacterial adaptation to the cold : in situ activities of extracellular enzymes in the North Water polynya and characterization of a cold-active aminopeptidase from Colwellia psychrerythraea strain 34H /." Thesis, Connect to this title online; UW restricted, 2003. http://hdl.handle.net/1773/11062.

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40

Cheung, Ka-hong, and 張嘉康. "Chromate toxicity assessment and detoxification by bacteria from the marine environment." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B45015351.

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41

Lorn, Da. "Screening of lactic acid bacteria for their use as aromatic starters during fermentation of vegetables." Thesis, Bourgogne Franche-Comté, 2020. http://www.theses.fr/2020UBFCK053.

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Les bactéries lactiques (LAB) ont de bonnes capacités de croissance sur différentes matrices alimentaires et produisent des activités enzymatiques très diverses qui sont notamment capables de modifier positivement les propriétés organoleptiques des aliments fermentés. Par conséquent, la sélection des ferments (starters) LAB possédant de bonnes capacités métaboliques et des activités enzymatiques intéressantes envers la matrice végétale pourrait améliorer les profils aromatiques des aliments fermentés. Le principal objectif de cette étude était d'améliorer les profils aromatiques des tomates fe

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42

Scott, Allelia Worrall. "Pyrimidine Nucleoside Metabolism in Pseudomonads and Enteric Bacteria." Thesis, University of North Texas, 1991. https://digital.library.unt.edu/ark:/67531/metadc500941/.

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Metabolic differences in the strategies used for pyrimidine base and nucleoside salvage were studied in the pseudomonads and enteric bacteria. Fluoro--analogs were used to select mutant strains of E. coli, S. typhimurium, P. putida, and P. aeruginosa blocked in one or more of the uracil and uridine salvage enzymes. HPLC analysis of cell-free extracts from wild-type and mutant strains examined the effectiveness of the selections. Evidence was found for cytidine kinase in Pseudomonas and for an activity that converted uracil compounds to cytosine compounds. Using media supplemented with 150 μg o

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43

Marty, Jean-Louis. "Métabolisation des phenylcarbamates herbicides : rôle des enzymes et des microorganismes." Perpignan, 1987. http://www.theses.fr/1987PERP0039.

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44

Aizouq, Mohammed [Verfasser]. "Characterization of Enzymes Involved in Lipid Biosynthesis from the Photosynthetic Bacteria Synechocystis PCC6803 and Blastochloris viridis / Mohammed Aizouq." Bonn : Universitäts- und Landesbibliothek Bonn, 2020. http://d-nb.info/1233733877/34.

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45

Ladevèze, Simon. "Functional and structural insights into Glycoside Hydrolase family 130 enzymes : implications in carbohydrate foraging by human gut bacteria." Thesis, Toulouse, INSA, 2015. http://www.theses.fr/2015ISAT0010/document.

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Les relations entre bactéries intestinales, aliments et hôte jouent un rôle crucial dans lemaintien de la santé humaine. La caractérisation fonctionnelle d’Uhgb_MP, une enzyme dela famille 130 des glycoside hydrolases découverte par métagénomique fonctionnelle, arévélé une nouvelle fonction de dégradation par phosphorolyse des polysaccharides de laparoi végétale et des glycanes de l'hôte tapissant l'épithélium intestinal. Les déterminantsmoléculaires de la spécificité d’Uhgb_MP vis-à-vis des mannosides ont été identifiés grâce àla résolution de sa structure cristallographique, sous forme apo e

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46

Iredell, J. R. "Molecular export and pilin assembly : TCP biogenesis in Vibrio cholerae /." Title page, contents and abstract only, 1997. http://web4.library.adelaide.edu.au/theses/09PH/09phi648.pdf.

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47

Alshammari, Abdulaziz. "IN VITRO EFFECT OF STATINS ON STREPTOCOCCUS MUTANS, STREPTOCOCCUS SANGUIS, AND STREPTOCOCCUS SALVARIUS." Master's thesis, Temple University Libraries, 2016. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/368075.

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Oral Biology<br>M.S.<br>Objectives: Cardiovascular disease (CVD), including heart attack, angina, and stroke, is ranked as the number one cause of mortality world wide. High blood cholesterol is linked to CVD and is an important risk factor. Statins – cholesterol lowering drugs- are first choice drugs for reducing the chance of suffering a CVD event. In the USA alone, approximately 32 million individuals take statins. Although randomized control trials of statins have demonstrated their efficacy in preventing CVD, much less information has been reported on their unintended effects. Although no

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48

Rivas, Maria Gabriela. "Molybdenum-containing proteins from Sulphate Reducing Bacteria: studying proteins with novel cofactors and revealing new features of old enzymes." Doctoral thesis, FCT - UNL, 2006. http://hdl.handle.net/10362/1947.

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Dissertação apresentada para a obtenção do Grau de Doutor em Bioquímica, especialidade de Bioquímica-Física pela Universidade Nova de Lisboa, Faculdade de Ciências e Tecnologia<br>The work presented in this thesis was oriented to the study of two different types of proteins isolated from sulphate reducing bacteria. One of them is the mononuclear molybdenum containing enzyme Formate dehydrogenase from D. desulfuricans ATCC 27774 (Dd Fdh). Formate dehydrogenases are enzymes that catalyze the two-electron oxidation of formate to carbon dioxide. Dd Fdh belongs to the dimethylsulphoxide redu

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49

Bouthier, de la Tour Claire. "Contribution a l'etude de deux enzymes bacteriennes : la peptidyltransferase ribosomale et la beta cystathionase." Paris 6, 1987. http://www.theses.fr/1987PA066044.

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50

Rashamuse, Konanani Justice. "The bioaccumulation of platinum (IV) from aqueous solution using sulphate reducing bacteria: role of a hydrogenase enzyme." Thesis, Rhodes University, 2003. http://hdl.handle.net/10962/d1004063.

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The enzymatic reduction of a high-valence form of metals to a low-valence reduced form has been proposed as a strategy to treat water contaminated with a range of metals and radionuclides. Metal reduction by sulphate reducing bacteria (SRB) is carried out either chemically (involving reduction by hydrogen sulphide) or enzymatically (involving redox enzymes such as the hydrogenases). While reduction of metal ions by hydrogen sulphide is well known, the enzymatic mechanism for metal reduction is poorly understood. The aims of this study were to investigate the role of SRB in facilitating platinu

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