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Dissertations / Theses on the topic 'Proteins Escherichia coli'

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1

Orchard, Lisa Marguerite Denise. "The 1-phosphofructokinase of Escherichia coli." Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.259621.

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2

Schlegel, Susan. "From protein production to genome evolution in Escherichia coli." Doctoral thesis, Stockholms universitet, Institutionen för biokemi och biofysik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-94993.

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The aim of my Ph.D. studies was to improve production yields of membrane- and secretory proteins in the widely used E. coli protein production strain BL21(DE3). In this strain expression of the gene encoding the protein of interest is driven by the powerful T7 RNA polymerase (T7 RNAP) whose gene is located on the chromosome and under control of the strong, IPTG-inducible lacUV5 promoter. Unfortunately, the production of many membrane and secretory proteins is 'toxic' to BL21(DE3), resulting in poor growth and low production yields. To understand this ‘toxicity’, the BL21(DE3) derived mutant st
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3

Seppälä, Susanna. "Dual-topology membrane proteins in Escherichia coli." Doctoral thesis, Stockholms universitet, Institutionen för biokemi och biofysik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-61944.

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Cellular life, as we know it, is absolutely dependent on biological membranes; remarkable superstructures made of lipids and proteins. For example, all living cells are surrounded by at least one membrane that protects the cell and holds it together. The proteins that are embedded in the membranes carry out a wide variety of key functions, from nutrient uptake and waste disposal to cellular respiration and communication. In order to function accurately, any integral membrane protein needs to be inserted into the cellular membrane where it belongs, and in that particular membrane it has to atta
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4

Potamitou, Aristi. "Characterization and function of Escherichia coli glutaredoxins /." Stockholm, 2003. http://diss.kib.ki.se/2003/91-7349-458-5/.

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5

Fu, Zhibiao. "Studies of protein secretion in escherichia coli /." View abstract or full-text, 2006. http://library.ust.hk/cgi/db/thesis.pl?BICH%202006%20FU.

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6

Misra, Rajeev. "Studies on the TolC protein of Escherichia coli K-12 and its effect on OmpF expression." Title page, table of contents and abstract only, 1986. http://web4.library.adelaide.edu.au/theses/09PH/09phm678.pdf.

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7

Handford, Jennifer Iris. "Investigation of conserved, essential proteins in Escherichia coli." Thesis, University of East Anglia, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.441617.

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8

Yue, Kevin Kin Man. "Assembly of outer membrane proteins in Escherichia coli." Thesis, University of Liverpool, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.257436.

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9

Martinez, Eric. "Exploitation of NHERF proteins by diarrheagenic Escherichia coli." Thesis, Imperial College London, 2010. http://hdl.handle.net/10044/1/6352.

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Enteropathogenic (EPEC) and enterohaemorrhagic (EHEC) Escherichia coli cause severe disease with symptoms ranging from mild diarrhoea to haemolytic uremic syndrome. During infection of the gut, these bacteria provoke attaching and effacing lesions (A/E lesions), characterised by intimate bacterial attachment and effacement of microvilli from the surface of enterocytes. A type III secretion system (T3SS), encoded by the locus of enterocyte effacement (LEE), allows EPEC and EHEC to inject more than twenty effector proteins into the host cell cytoplasm and to manipulate a large number of cellular
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10

Thomas, Jeffrey G. "Molecular chaperones and the folding of recombinant proteins in Escherichia coli /." Thesis, Connect to this title online; UW restricted, 1998. http://hdl.handle.net/1773/9881.

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11

Hook-Barnard, India G. "Molecular analysis of regulatory elements within the escherichia coli fepB leader mRNA." free to MU Campus, others may purchase, 2003. http://wwwlib.umi.com/cr/mo/fullcit?p3091932.

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12

Tomenius, Henrik. "Bacterial virulence and adaptation mediated by two-component system signalling /." Stockholm, 2006. http://diss.kib.ki.se/2006/91-7140-792-8/.

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13

Stewart, Christine Catherine. "Toxicity of mutant membrane proteins /." Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/10259.

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14

Rozkov, Aleksei. "Control of Proteolysis of Recombinant Proteins in Escherichia coli." Doctoral thesis, KTH, Biotechnology, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3227.

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15

Biot-Pelletier, Damien. "Structural biology of energy-transducting proteins from «Escherichia coli»." Thesis, McGill University, 2010. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=95207.

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The cell envelope of Gram-negative bacteria such as Escherichia coli is composed of an outer (OM) and cytoplasmic membrane (CM), which enclose a space known as the periplasm. For acquisition of essential nutrients, bacteria must transport molecules across both membranes. The import of certain scarce nutrients, such as iron and vitamin B12, requires the input of energy; however, the OM is devoid of any source of energy. To drive the transport of scarce nutrients across the OM, bacteria use the proton motive force of the CM. The TonB–ExbB–ExbD protein complex located within the CM is responsible
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16

Smillie, David Andrew. "Genes encoding sigma cross-reacting proteins of Escherichia coli." Thesis, University of Edinburgh, 1994. http://hdl.handle.net/1842/14435.

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In the course of work aimed at discovering new sigma transcription initiation factors in <I>Escherichia coli</I>, two unknown sigma cross-reacting proteins (SCRP-23 and SCRP-27A) were identified by cross-reaction with antibodies raised against region 2.2 of sigma 70. This thesis describes the mapping, sequencing and characterisation of the corresponding genes. The gene encoding SCRP-23 was located near 652kb on the physical map of the <I>E. coli</I> chromosomes. Its sequence and that of part of a downstream open reading frame were determined, and found to be closely similar to the <I>ahpC</I>
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17

Bane, Steven Edward. "Expression and characterization of the human neurokinin 1 receptor from Escherichia coli." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 99 p, 2007. http://proquest.umi.com/pqdweb?did=1342742951&sid=1&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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18

Hantash, Feras Mohammad. "The shock-sensitive proteins of the Escherichia coli enterobactin system /." Digital version accessible at:, 1998. http://wwwlib.umi.com/cr/utexas/main.

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19

Furrer, Jason L. "Enterobactin export in escherichia coli via P43 (ents) and associated components." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/4392.

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Thesis (Ph. D.)--University of Missouri-Columbia, 2006.<br>"December 2006" The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Vita. Includes bibliographical references.
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20

Frumerie, Clara. "Functional characterization of a phage integrase and its possible use in gene therapy /." Stockholm : Department of genetics, microbiology and toxicology, Stockholm university, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-397.

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21

Faraldo-Gómez, José D. "Computational studies of bacterial iron transport proteins : methodological aspects and application." Thesis, University of Oxford, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249243.

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22

Guo, Zufeng. "Cellular factors influencing the biosynthesis of enterobactin in escherichia coli /." View abstract or full-text, 2009. http://library.ust.hk/cgi/db/thesis.pl?CHEM%202009%20GUO.

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23

Coleman, Struan Howard. "The regulation of the rpmB,G operon of Escherichia coli." Thesis, University of Oxford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260156.

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24

Ritchie, Graeme Y. "Analysis of KefC, a potassium transport protein of Escherichia coli." Thesis, University of Aberdeen, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.290398.

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KefC is a potassium transport system of <i>E.coli</i> that is regulated by glutathione metabolites. An analysis of the KefC protein was undertaken in order to advance towards an understanding of the transport and regulatory processes at a molecular level. KefC-LacZ hybrid proteins were constructed by mini-Mu transposon insertion mutagenesis into <i>kefC</i> plasmids. The distribution of the B-galactosidase activity between membrane and soluble fractions indicated that the KefC moieties of the hybrid proteins were directing the proteins to the membrane, suggesting that KefC is a membrane protei
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25

Lackner, Laura L. "Investigating the mechanism of E̲s̲c̲h̲e̲r̲i̲c̲h̲i̲a̲ c̲o̲l̲i̲ Min protein dynamics." Connect to text online, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=case1124832205.

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Thesis (Ph. D.)--Case Western Reserve University, 2006.<br>[School of Medicine] Department of Molecular Biology and Microbiology. Includes bibliographical references. Available online via OhioLINK's ETD Center.
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26

Morris, Terry Lynn. "Molecular characterization of the fepA-fes bidirectional promoter in escherichia coli." free to MU campus, to others for purchase, 2001. http://wwwlib.umi.com/cr/mo/fullcit?p3025640.

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27

Hedhammar, My. "Strategies for facilitated production of recombinant proteins in escherichia coli." Doctoral thesis, KTH, School of Biotechnology (BIO), 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-471.

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<p>The successful genomic era has resulted in a great demand for efficient production and purification of proteins. The main objective of the work described in this thesis was to develop methods to facilitate recovery of target proteins after recombinant production in Escherichia coli.</p><p>A positively charged purification tag, Z<sub>basic</sub>, has previously been constructed by protein design of a compact three-helix bundle domain, Z. The charged domain was investigated for general use as a fusion partner. All target proteins investigated could be selectively captured by ion-exchange chro
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28

Wagner, Samuel. "From Biogenesis to Overexpression of Membrane Proteins in Escherichia coli." Doctoral thesis, Stockholms universitet, Institutionen för biokemi och biofysik, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-7513.

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In both pro- and eukaryotes 20-30% of all genes encode alpha-helical transmembrane domain proteins, which act in various and often essential capacities. Notably, membrane proteins play key roles in disease and they constitute more than half of all known drug targets. The natural abundance of membrane proteins is in general too low to conveniently isolate sufficient material for functional and structural studies. Therefore, most membrane proteins have to be obtained through overexpression. Escherichia coli is one of the most successful hosts for overexpression of recombinant proteins. While the
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29

Gurmu, Daniel. "Structural Studies of Microbial Proteins - From Escherichia coli and Herpesviruses." Doctoral thesis, Stockholms universitet, Institutionen för biokemi och biofysik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-35674.

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Structure biology concerns the study of the molecular structures of biological macromolecules, such as proteins, and how these relate to the function. Protein structures are also of importance in structure-based drug design. In this thesis, the work has been carried out in two different projects. The first project concerns structural studies of proteins from the bacterium Escherichia coli and the second of proteins from five different herpesviruses.  The E. coli project resulted in the structural characterization of three proteins: CaiB, RibD, and YhaK. CaiB is a type-III CoA transferase invol
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30

Sverzhinsky, Aleksandr. "Energy-transducing proteins of «Escherichia coli»: lipid-based crystallization trials." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=106497.

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Gram-negative bacteria such as Escherichia coli possess a cell envelope composed of an outer membrane (OM) and a cytoplasmic membrane (CM). Widespread antibiotic resistance among these bacteria has necessitated the elucidation of novel therapeutic targets. Scarce nutrients such as iron and vitamin B12 cross the OM by energy-dependent transport. Since the OM lacks a source of energy, bacteria couple the energized CM to drive this process. The TonB-ExbB-ExbD integral membrane protein complex in the CM harnesses the proton gradient and transduces this energy to OM receptors. Despite decades of in
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31

Visudtiphole, Virak. "Folding and topological studies of Escherichia coli outer membrane proteins." Thesis, University of Newcastle Upon Tyne, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.420000.

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32

Mitsopoulos, Konstantinos. "The assembly of type III membrane proteins in Escherichia coli." Thesis, University of Sussex, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310262.

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33

Albiniak, A. M. "Characterization and exploitation of inner membrane proteins in Escherichia coli." Thesis, University of Warwick, 2012. http://wrap.warwick.ac.uk/54305/.

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This thesis illustrates the characterization and exploitation of inner membrane proteins in Escherichia coli and involves two parallel aspects. Firstly, in order to build the picture of the small inner membrane proteome in Escherichia coli K12, global search for E. coli K12 small inner membrane proteins was performed by means of bioinformatic analyses. The profile that was generated in this study consists of 108 short open reading frames encoding membrane proteins in E. coli str. K12. Additionally, a second list of 138 sequences was produced and is formed by recently identified genomic sequenc
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34

Madkour, Azzeldin Zaid Hamed. "Studies on virulence-critical proteins of enteropathogenic Escherichia coli (EPEC)." Thesis, University of Newcastle upon Tyne, 2017. http://hdl.handle.net/10443/3942.

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Enteropathogenic Escherichia coli (EPEC) virulence depends on a Type-3 Secretion System (T3SS) that transfers many ‘effector’ proteins into human gastrointestinal cells. The components for the effector-delivery apparatus (T3SS and translocator proteins), virulence-critical surface protein (Intimin) and seven effectors (EspG, EspF, Map, EspH, EspZ, Tir, EspB; latter also a translocator) are encoded on the Locus of Enterocyte Effacement (LEE) pathogenicity island. The EspA translocator protein extends the T3SS and is tipped with EspB and EspD which insert into the plasma membrane enabling effect
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35

Mujacic, Mirna. "Characterization of regulation and expression patterns of Escherichia coli Hsp31 protein /." Thesis, Connect to this title online; UW restricted, 2006. http://hdl.handle.net/1773/8119.

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36

Vasina, Jess A. "Expression of recombinant proteins in Escherichia coli under the transcriptional control of the cold-shock inducible cspA promoter /." Thesis, Connect to this title online; UW restricted, 1997. http://hdl.handle.net/1773/9866.

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37

Yi, Liang. "Studies of E. coli YIDC and other factors for membrane protein insertion." Connect to this title online, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1110228536.

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Thesis (Ph. D.)--Ohio State University, 2005.<br>Title from first page of PDF file. Document formatted into pages; contains xi, 96 p.; also includes graphics (some col.) Includes bibliographical references (p. 85-96). Available online via OhioLINK's ETD Center
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38

Quigley, Paulene. "Structural studies of the chaperone Hsp31 from Escherichia coli /." Thesis, Connect to this title online; UW restricted, 2003. http://hdl.handle.net/1773/8696.

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39

Pernestig, Anna-Karin. "The study of the Escherichia coli BarA-UvrY two-component system and its ability to sense the environment /." Stockholm, 2002. http://diss.kib.ki.se/2003/91-7349-474-7.

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40

Crane, Jennine Marie. "Characterization of two modes of interaction between the chaperone SecB and its binding partners." Free to MU Campus, others may purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p3144410.

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41

Stanley, Nicola Ruth. "Characterisation of a novel protein export pathway in Escherichia coli." Thesis, University of East Anglia, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327431.

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42

Liu, Zhonghua. "Characterization of two AAA+ proteins : Escherichia coli ClpB and human torsina /." Search for this dissertation online, 2005. http://wwwlib.umi.com/cr/ksu/main.

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43

Cottreau, Andrew. "High-resolution electron microscopy of energy-transducing proteins of «Escherichia coli»." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=106537.

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Transport of scarce nutrients such as iron and vitamin B12 across the outer membrane of Gram-negative bacteria depends on an integral cytoplasmic membrane protein complex: TonB-ExbB-ExbD. The proton motive force across the cytoplasmic membrane is transduced by this complex to TonB-dependent outer membrane receptors. High resolution structures of the C-terminal periplasmic domains of TonB and ExbD have been solved; structural information is lacking for the membrane-spanning regions of these two proteins and for ExbB. The stoichiometry of the complex, the native organization of TonB-ExbB-ExbD an
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44

Patel, Amit. "Interaction of enteropathogenic 'Escherichia coli' (EPEC) tir with host cell proteins." Thesis, University of Nottingham, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.431869.

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45

Waugh, Craig. "Investigating the function of Escherichia coli membrane proteins ybaL and fsr." Thesis, University of Aberdeen, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369601.

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46

Zupanc, Marianne M. "Export and regulatory properties of MalE hybrid proteins in Escherichia coli." Thesis, Open University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301885.

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47

Whiting, Nicola. "Characterisation of 'degenerate' cyclic di-GMP signalling proteins of Escherichia coli." Thesis, University of Sheffield, 2014. http://etheses.whiterose.ac.uk/7787/.

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48

RODRIGUES, DANIELLA. "Utilização de altas pressões hidrostáticas para o estudo e renaturação de proteínas com estrutura quaternária." reponame:Repositório Institucional do IPEN, 2012. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10161.

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Made available in DSpace on 2014-10-09T12:35:27Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:06:25Z (GMT). No. of bitstreams: 0<br>Dissertação (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
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49

Lai, YuShuan (Cindy). "EspFU, an Enterohemorrhagic E. Coli Secreted Effector, Hijacks Mammalian Actin Assembly Proteins by Molecular Mimicry and Repetition: A Dissertation." eScholarship@UMMS, 2014. https://escholarship.umassmed.edu/gsbs_diss/715.

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Enterohemorrhagic E. coli (EHEC) is a major cause of food borne diarrheal illness worldwide. While disease symptoms are usually self-resolving and limited to severe gastroenteritis with bloody diarrhea, EHEC infection can lead to a life threatening complication known as Hemolytic Uremic Syndrome (HUS), which strikes children disproportionately and is the leading cause of kidney failure in children. Upon infection of gut epithelia, EHEC produces characteristic lesions called actin pedestals. These striking formations involve dramatic rearrangement of host cytoskeletal proteins. EHEC hijacks mam
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50

Lai, YuShuan (Cindy). "EspFU, an Enterohemorrhagic E. Coli Secreted Effector, Hijacks Mammalian Actin Assembly Proteins by Molecular Mimicry and Repetition: A Dissertation." eScholarship@UMMS, 2004. http://escholarship.umassmed.edu/gsbs_diss/715.

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Enterohemorrhagic E. coli (EHEC) is a major cause of food borne diarrheal illness worldwide. While disease symptoms are usually self-resolving and limited to severe gastroenteritis with bloody diarrhea, EHEC infection can lead to a life threatening complication known as Hemolytic Uremic Syndrome (HUS), which strikes children disproportionately and is the leading cause of kidney failure in children. Upon infection of gut epithelia, EHEC produces characteristic lesions called actin pedestals. These striking formations involve dramatic rearrangement of host cytoskeletal proteins. EHEC hijacks mam
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