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Showing 1 to 20 of 62 for “"Virulence Gene"”.

  1. Identification of the virulence gene of Mycobacterium tuberculosis

    Rabiu, Halimah AdenikeDepartment of Molecular and Cell Biology2007

    … is to identify and characterize potential virulence genes from M. tuberculosis. To this end, we have compiled and integrated information from various public databases to catalogue 246573 microbial genes from 84 organisms, including pathogens and non pathogenic microbes. We determined the …

    cape-town Repository record

  2. Coordinate Regulation of Salmonella Virulence Gene Expression During Infection

    Ellermeier, Craig DeanUniversity of Illinois at Urbana-Champaign2015

    … that RtsA increases expression of the invasion genes by inducing hilA expression. RtSA also induces expression of hilD, hilC, invF, and slrP. RtsA induction of these genes is independent of other SPI1 regulators. RtsA directly induces hilA expression by binding to the promoter. We propose that …

    uiuc Repository record

  3. The transcriptional control of virulence gene expression in Helicobacter pylori

    Spohn, GuntherUniversität Würzburg

    … to obtain an overview of the basic mechanisms of virulence gene expression in H. pylori, three important virulence factors of this pathogen, representative of different pathogenic mechanisms and different phases of the infectious process, are investigated in detail in the present thesis regarding …

    wurz-thes Repository record

  4. <i>Staphylococcus aureus</i> virulence gene studies : a comparative microarray based approach

    Mohamed, Deqa Hassan A.The Open University2010

    … of a partial composite <i>S. aureus</i> virulence-associated gene micro array is described. Epidemic, pandemic and sporadic lineages of healthcare associated(HA-) and community-associated (CA-) <i>S. aureus</i> were compared. The clonal population structure was supported but further …

    the-open-u Repository record

  5. Roles of Small Rnas and Paralogous Proteins In Bacillus Anthracis Virulence Gene Regulation

    Corsi, Ileana, <p>http://www.orcid.org/0000-0002-5422-9105</p>2023

    … a myriad of regulatory mechanisms to control gene expression. One of the most common mechanisms is post-transcriptional control through the function of small regulatory RNAs (sRNAs). Small regulatory RNAs (sRNAs) are short transcripts that base-pair to mRNA targets or interact with regulatory …

    uthsc Repository record

  6. Virulence gene expression of three hypervirulent S. pyogenes M1T1 and membrane vesicles isolation

    METOLDO, VALERIAUniversità degli studi di Catania2015

    … activity against S.pneumoniae and S.pyogenes and a potent capacity of adhesion to HEp-2 cells. The main aim of this study was to evaluate the clinical evidence of a probiotic application of S.salivarius 24SMBc for the prevention or reduction of recurrent medium otite (OM) children …

    catania Repository record

  7. Elucidating Pseudomonas aeruginosa virulence gene regulation by the ribbon-helix-helix transcription factor AmrZ

    Pryor, Edward E.Wake Forest University2011

    … infections is due in part to the arsenal of virulence factors <italic>P. aeruginosa</italic> has at its disposal, which include biofilm formation, lipopolysaccharide, quorum sensing, and exotoxin production, among others. AmrZ, a member of the ribbon-helix-helix family of DNA binding …

    wfu Repository record

  8. CONTRIBUTIONS OF SIGMA-B AND PRFA TO STRESS RESPONSE AND VIRULENCE GENE EXPRESSION IN LISTERIA MONOCYTOGENES

    Kazmierczak, Mark J.American Society for Microbiology Press2005

    … food borne bacterial pathogen Listeria monocytogenes has several mechanisms for regulating expression of stress response and virulence genes. The alternative sigma factor sigmaB is a global regulator of genes active under environmental stress conditions and during stationary phase growth. I …

    cornell Repository record

  9. The Mechanism For Inhibition Of Vibrio Cholerae Virulence Gene Expression By Bile And Its Fatty Acid Components

    Plecha, Sarah2014

    … diarrheal disease cholera by producing two major virulence factors: cholera toxin (CT) and toxin-coregulated pilus (TCP). During infection, <i>V. cholerae</i> downregulates its motility genes, which are actively expressed in the environment, and upregulates its virulence genes, which are inactive …

    wayne-thes Repository record

  10. Effects of low molecular weight compounds on growth, virulence gene expression and cytotoxic activity of Shiga toxin-producing Escherichia coli O157:H7

    Gao, FandingUniversity of Missouri--Columbia2016

    … compound (LMWC) capable of inhibiting various virulence gene expressions in E. coli O157:H7 has been identified, which could help mitigate its pathogenicity at certain time points in its infection. Our own previous studies showing significant down-regulation of virulence gene expression in …

    missouri Repository record

  11. How did Listeria monocytogenes become pathogenic?

    Ng, Eva Yee WahUniversität Würzburg

    … been clearly resolved due to a scarcity of phylogenetically informative characters within the 16S and 23S rRNA molecules. The genus Listeria contains six species: L. monocytogenes, L. ivanovii, L. innocua, L. seeligeri, L. welshimeri, and L. grayi; of these, L. monocytogenes and L. ivanovii are …

    wurz-thes Repository record

  12. Studies Toward the Syntheses of Antiarrythmic, Anti-Virulence, and Anticancer Small Molecules

    Adebesin, Adeniyi Michael2018

    … of potent inhibitors of QseC mediated virulence gene expression, and c) studies toward a biomimetic total synthesis of nigricanoside A. Antiarrhythmic analogs of 17(R),18(S)-epoxyeicosatetraenoic acid (17(R),18(S)-EEQ): Arrhythmias such as atrial and ventricular fibrillation are a …

    utswmed Repository record

  13. Characterization of the grvA and grvB Anti -Virulence Genes Encoded by the Gifsy-2 and Gifsy -1 Bacteriophages of Salmonella Typhimurium

    Ho, Theresa DelandUniversity of Illinois at Urbana-Champaign2015

    … contribute significantly to S. typhimurium virulence. We have been studying biology of these phage to determine the effects of Gifsy-1 and Gifsy-2 on the virulence of S. typhimurium. The Gifsy-2 phage carries the periplasmic superoxide dismutase gene, sodCI. Using the IVET system, we …

    uiuc Repository record

  14. Understanding small RNA-mediated post-transcriptional regulation of Salmonella pathogenicity island 1 activator HilA in Salmonella typhimurium

    Hou, YutongUniversity of Illinois Urbana-Champaign2025

    … and regulatory signals control SPI1 gene expression, but in most cases, the molecular mechanisms remain unclear. Many regulatory signals control SPI1 at a post-transcriptional level, and we have identified a number of small RNAs (sRNAs) that control the SPI1 regulatory circuit. The …

    uiuc Repository record

  15. CcpA-Mediated Carbon Catabolite Repression of Virulence in the Group A Streptoccus

    Kinkel, Traci L.2010

    … The coordinate expression of a wide array of virulence factors in response to the changing host environment represents a key step in the ability of the GAS to mediate disease in the human host. The present study investigates the role of the primary mediator of sugar metabolism regulation, …

    utswmed Repository record

  16. The Influence of The Pep-Pts and Other Metabolic Systems On The Master Virulence Regulator Atxa and to xin Gene Expression In Bacillus Anthracis

    Bier-Reizes, Naomi, <p>0000-0002-4918-5814</p>2020

    <p>AtxA, the master virulence gene regulator in <em>Bacillus anthracis,</em> is a PRD-containing virulence regulator (PCVR) as indicated by the crystal structure, post-translational modifications, and activity of the protein. PCVRs are transcriptional regulators, named for the regulatory domains …

    uthsc Repository record

  17. Functional Similarity of Prd-Containing Virulence Regulators In Bacillus Anthracis

    Raynor, Malik, <p>https://orcid.org/0000-0002-2324-1662</p>2018

    … regulators, AtxA, AcpA, and AcpB, that control virulence gene expression and are members of an emerging class of regulators termed “PCVRs” (Phosphoenolpyruvate-dependent phosphotransferase regulation Domain-Containing Virulence Regulators). AtxA controls expression of the toxin genes; <em>lef, …

    uthsc Repository record

  18. Epidemiología molecular de Staphylococcus spp. desde un enfoque One Health: genes emergentes e inusuales de resistencia a antibióticos y de virulencia

    Ruiz Ripa, LauraUniversidad de La Rioja (España)2021

    … emergent and unusual antibiotic resistance and virulence genes. Staphylococcus spp. isolates recovered from tracheal samples of 242 wild birds were characterized. SCoP were recovered from 8.3% of wild birds tested, and the isolates were identified as S. aureus (n=9) and S. delphini (n=12). Most …

    dialnet Repository record

  19. Characterization of major virulence regulators of Erwinia amylovora

    Li, WentingUniversity of Illinois at Urbana-Champaign2013

    … type III secretion system (T3SS) are two major virulence factors in E. amylovora. However, how these virulence factors are regulated is not completely understood. In bacteria, gene expression is mainly regulated at the transcription initiation level and its core RNA polymerase (RNAP) requires …

    uiuc Repository record

  20. Determination of the occurrence, virulence genes, and antimicrobial resistance profiles of enterococcus faecalis and enterococcus faecium isolated from poultry of Chongwe, Lusaka, Kitwe, and Ndola districts, farmworkers from the Copperbelt province poultry farms and clinical specimens from Kitwe teaching hospital in Zambia.

    Mwikuma, GraceThe University of Zambia2024

    Enterococcus has great genetic plasticity and is highly versatile, hence does not only acquire and express mobile genetic elements (MGEs) but also disseminates them to pathogenic and non-pathogenic species of the same or of different genera. As such, it has been associated with various clinical …

    zambia Repository record

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