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Full-Text Articles in Life Sciences
The Phosphodiesterase, Rv0805, Is An Unheralded Component Of Tb Complex Mycobacterial Physiology In And Beyond Camp Homeostasis, James R. Mcdowell
The Phosphodiesterase, Rv0805, Is An Unheralded Component Of Tb Complex Mycobacterial Physiology In And Beyond Camp Homeostasis, James R. Mcdowell
Legacy Theses & Dissertations (2009 - 2024)
Phosphodiesterases (PDEs) are integral components of 3’,5’-cyclic adenosine monophosphate (cAMP) signaling pathways by degrading cAMP to modulate the concentration, duration, and localization of the cAMP signal which maintains the specificity of cAMP pathways. The human pathogen, Mycobacterium tuberculosis (Mtb) has a unique cAMP network architecture with at least 15 adenylyl cyclases (ACs) that generate cAMP, but only one characterized PDE, Rv0805, which is found exclusively in pathogenic mycobacteria. Rv0805 can influence Mtb cAMP levels but the absence of Rv0805 orthologs in non-pathogenic mycobacteria and apparent separation of Rv0805 from cAMP directed roles led to numerous questions surrounding PDE function in …
Cyclic Adenosine Monophosphate Signaling In Mycobacterium Tuberculosis : New Insights Into A Universal Second Messenger, Richard Mcpherson Johnson
Cyclic Adenosine Monophosphate Signaling In Mycobacterium Tuberculosis : New Insights Into A Universal Second Messenger, Richard Mcpherson Johnson
Legacy Theses & Dissertations (2009 - 2024)
Despite being the focus of intense research for many years Mycobacterium tuberculosis (Mtb), the causative agent of tuberculosis (TB), remains the deadliest bacterial pathogen plaguing mankind today. Humans are the sole host and reservoir for Mtb, and Mtb has coevolved closely with its human host for thousands of years. Mtb currently infects over two billion people worldwide and over 1.5 million people die from TB each year, arguably making Mtb the most successful bacterial pathogen on the planet.
The Dissemination, Regulatory Role, And Evolution Of Mycobacterial Inteins, Danielle Skye Kelley
The Dissemination, Regulatory Role, And Evolution Of Mycobacterial Inteins, Danielle Skye Kelley
Legacy Theses & Dissertations (2009 - 2024)
Inteins are intervening protein elements, capable of coordinating escape from a host protein through a self-catalyzed mechanism, called protein splicing. This results in free intein and a mature host protein product. Inteins are also mobile elements and many contain homing endonucleases that enable the targeting to ectopic sites and invasion of novel niches. Inteins have been found across all three domains of life and are often present in replication, recombination, and repair proteins. However, it is unclear if the observed distribution is simply a factor of endonuclease preference or if inteins have been selectively maintained due to an adaptation that …
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,
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.
Developing A Toolkit To Study The Role Of Inteins In Mycobacterial Biology, Rupsa Dey
Developing A Toolkit To Study The Role Of Inteins In Mycobacterial Biology, Rupsa Dey
Legacy Theses & Dissertations (2009 - 2024)
Tuberculosis, caused by Mycobacterium tuberculosis, is one of the most widespread and highly contagious diseases in the world today. This disease affects people from all walks of life and has a devastating effect on immune compromised individuals. Another concerning fact is the emergence of multiple drug resistant and extreme drug resistant strains of the bacilli that has made treatment very difficult. Thus it has become imperative that every avenue should be explored to fight and eradicate this disease. One such unexplored avenue is the role of inteins in mycobacterial biology. Inteins are intervening sequences found in conserved regions of a …
In-Cell And In Vitro Studies Of Disease Related Protein-Protein Interactions Using Nmr-Spectroscopy, Andres Yudiel Maldonado
In-Cell And In Vitro Studies Of Disease Related Protein-Protein Interactions Using Nmr-Spectroscopy, Andres Yudiel Maldonado
Legacy Theses & Dissertations (2009 - 2024)
The receptor for advanced glycation end products (RAGE) is a multiligand cell surface macromolecule that plays a central role in the etiology of diabetes, inflammation, and neurodegeneration. The cytoplasmic domain of RAGE, ctRAGE, is critical for RAGE-dependent signal transduction. As the most membrane proximal event, mDia1 binds to ctRAGE and is essential for RAGE ligand-stimulated phosphorylation of AKT and cell proliferation/migration. We show that ctRAGE contains an unusual alpha-turn that mediates the mDia1-ctRAGE interaction and is required for RAGE dependent signaling. The results establish a novel mechanism through which an extracellular signal initiated by RAGE ligands regulates RAGE signaling in …
Saturation Transfer Difference Nmr Studies : Pyrazinamide And Pyrazinamide Analogs Coordinating With Mycobacterium Tuberculosis Fatty Acid Synthase I (Fas I), Halimah Sayahi
Legacy Theses & Dissertations (2009 - 2024)
One third of the world's population is infected with M. tuberculosis, the causative agent of tuberculosis (TB) that claims the life of approximately 2 million people every year. The rapid spread of multidrug-resistance tuberculosis as well the emergence of extensively drug resistance strains that are resistant to virtually any known antibiotic, has transformed this once curable disease into a major public health challenge. To regain control of this disease and the associated mortality and morbidity new antibiotics are urgently needed.