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Articles 1 - 5 of 5
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A Tale Of Two Regulators : Characterization Of The Novel Transcription Factor Abmr And The Small Non-Coding Rna Mcr11 In Mycobacterium Tuberculosis, Roxanne Candice Girardin
A Tale Of Two Regulators : Characterization Of The Novel Transcription Factor Abmr And The Small Non-Coding Rna Mcr11 In Mycobacterium Tuberculosis, Roxanne Candice Girardin
Legacy Theses & Dissertations (2009 - 2024)
Genes of unknown function make up nearly one third of Mtb’s genome (Cole,
Novel Approaches To Mitigating Bacterial Biofilm Formation And Intercellular Communication, Stephen Kasper
Novel Approaches To Mitigating Bacterial Biofilm Formation And Intercellular Communication, Stephen Kasper
Legacy Theses & Dissertations (2009 - 2024)
Long thought of as solitary single-cell organisms, it is now widely accepted that bacteria can act and cooperate as social organisms. Phenomena such as biofilm formation and quorum sensing (QS) are two intimately intertwined cooperative behaviors that significantly contribute to the pathogenesis of many bacteria. Biofilms are surface associated communities of bacteria encased in a secreted extracellular matrix, which provides several advantages over an individualized lifestyle, such as increased protection from antimicrobial agents as well as enhanced opportunity for the exchange of genetic material. Bacterial QS is a system of population-based communication through the production, sensing, and response to chemical …
Investigating The Role Of Epitranscriptomics In Viral Immunity, Kaycie S. Lawson
Investigating The Role Of Epitranscriptomics In Viral Immunity, Kaycie S. Lawson
Legacy Theses & Dissertations (2009 - 2024)
The characterization of host-virus relationships is essential for understanding the process of viral replication and driving the development of effective viral targeting strategies. In this work, I tested the hypothesis that ribonucleic acid (RNA) post-transcriptional modifications (PTMs) may play a significant role in defining host-virus interactions. The model system consisted of a yeast strain capable of harboring the endogenous L-A virus, which allowed me to evaluate the possible involvement of PTMs in the process of cellular immunity to virus-borne toxicity. A mass spectrometry-based platform was utilized to compare the global PTM profile of wild-type yeast with those of the same …
Structural And Functional Characterization Of An Unusual Camp Responsive Transcription Factor, Cmr, In Tb Complex Mycobacteria, Sridevi Ranganathan
Structural And Functional Characterization Of An Unusual Camp Responsive Transcription Factor, Cmr, In Tb Complex Mycobacteria, Sridevi Ranganathan
Legacy Theses & Dissertations (2009 - 2024)
Mycobacterium tuberculosis (Mtb), the causative agent of tuberculosis in humans, is an intracellular pathogen that infects millions of people every year. Mtb can survive inside the host for extended periods of time by sensing and adapting to the host environmental stressors. Transcriptional gene regulation plays a critical role in this adaptation. This dissertation focuses on understanding the structural and functional aspects of one such transcriptional regulatory unit, Cmr (Rv1675c), in Mtb.
Profiling Resistance To P450-Activated Food Carcinogens Using Toxicogenomic Approaches In Budding Yeast, Nicholas Stjohn
Profiling Resistance To P450-Activated Food Carcinogens Using Toxicogenomic Approaches In Budding Yeast, Nicholas Stjohn
Legacy Theses & Dissertations (2009 - 2024)
The human response to environmental carcinogens, some of which require metabolic activation, is highly variable. Factors such as environment, lifestyle, and genetics all influence the rates of exposure to and ultimate bioactivation of these compounds. Genetic factors include mutations to cell-cycle regulation, cell proliferation, and DNA repair genes; however, epidemiological studies may lack significance due to inadequate patient numbers. We used budding yeast as a model organism to determine genetic susceptibility to food-associated carcinogens, including aflatoxin (AFB1) and heterocyclic aromatic amines (HAAs). Budding yeast does not contain P450s that activate these compounds, so expression vectors were induced that contain human …